Updated on 2026/03/13

写真a

 
TERANISHI TOSHIHARU
 
Organization
Institute of Integrated Research Materials and Structures Laboratory Specially Appointed Professor
Title
Specially Appointed Professor
External link

Degree

  • Doctor of Engineering ( The University of Tokyo )

Research Interests

  • Structural control

  • Ordering

  • Semiconductor

  • Nanoparticle

  • Magnetic property

  • Optical property

  • Superlattice

  • Electronic property

  • Element substitution

  • Ion exchange reaction

  • Metal

  • Galvanic replacement reaction

Research Areas

  • Nanotechnology/Materials / Nanobioscience

  • Nanotechnology/Materials / Fundamental physical chemistry

  • Nanotechnology/Materials / Nanomaterials

  • Nanotechnology/Materials / Functional solid state chemistry

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment

Education

  • The University of Tokyo   The Graduate School of Engineering   Industrial Chemistry

    1991.4 - 1994.3

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  • The University of Tokyo   The Graduate School of Engineering   Industrial Chemistry

    1989.4 - 1991.3

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  • The University of Tokyo

    1985.4 - 1989.3

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Research History

  • Kyoto University   Institute for Chemical Research   Professor

    2011.7

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  • University of Tsukuba   Graduate School of Pure and Applied Sciences   Professor

    2004.4 - 2011.6

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  • Japan Advanced Institute of Science and Technology   Graduate School of Materials Science   Associate Professor

    2001 - 2004

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  • Researcher, Japan Science and Technology Agency

    2000 - 2003

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  • Japan Advanced Institute of Science and Technology   Graduate School of Materials Science   Assistant Professor

    1994.4 - 2001.9

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Professional Memberships

  • The Japanese Photochemistry Association

    2022.7

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  • The Electrochemical Society

    2022.6

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  • The Royal Society of Chemistry

    2021.5

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  • Japan Society of Coordination Chemistry

    2018.4

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  • Society of Nano Science and Technology

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  • The Chemical Society of Japan

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Papers

  • Zinc-induced ordering in L1 0 -type platinum-based nanoalloys for the electrocatalytic oxygen reduction reaction

    Wu Tian, Ryota Sato, Tomoki Uchiyama, Yasutomi Tatetsu, Kenshi Matsumoto, Yoshiharu Uchimoto, Toshiharu Teranishi

    Journal of Materials Chemistry A   2026

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    Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    Introducing low-melting-point Zn to L1 0 -PtM (M = Co, Ni) boosts thermal stability by raising phase transition ( T PT ) and lowering diffusion temperatures ( T AD ). This enables highly ordered alloy nanocatalysts to form via low-temperature annealing.

    DOI： 10.1039/d5ta08256k

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  • Precise diameter control derived intermetallic PtNiCo nanowires: a simple two-step synthesis and operando XAS insight

    Kuowei Liao, Weijie Cao, Mukesh Kumar, Neha Thakur, Mitsuhiro Matsumoto, Toshiki Watanabe, Masashi Matsumoto, Hideto Imai, Tomoya Uruga, Takuma Kaneko, Ryota Sato, Toshiharu Teranishi, Yoshiharu Uchimoto

    JOURNAL OF MATERIALS CHEMISTRY A   2025.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/d5ta05902j

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  • First-principles study of structural stability and magnetic properties in Fe–Pd–In alloys

    Yasutomi Tatetsu, Kenshi Matsumoto, Ryota Sato, Toshiharu Teranishi

    Journal of Magnetism and Magnetic Materials   173649 - 173649   2025.11

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jmmm.2025.173649

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  • Direct synthesis of three-dimensional Ag nanocrystal superlattices and their superhydrophobic films for a potential surface-enhanced Raman scattering substrate

    Lingkai Zhu, Nao Nagai, Yan Xia, Mitsuki Muto, Toshiharu Teranishi, Masaki Saruyama

    NANOSCALE   17 ( 40 )   23416 - 23424   2025.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/d5nr02550h

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  • Atomic diffusion barriers and inter-element miscibility guide the development of unexplored crystal phases. International journal

    Kenshi Matsumoto, Masaki Kudo, Yasutomi Tatetsu, Ryota Sato, Ryo Takahata, Toshiharu Teranishi

    Chemical science   2025.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    Z3-Fe(Pd,In)3 ordered alloy nanoparticles containing alternating layers of an L10 (CuAu-type)-like PdFePd trilayer and a Pd-In ordered alloy monolayer are formed by following the inter-element miscibility of In, which is miscible with Pd but immiscible with Fe. An understanding of the atomic diffusion processes based on inter-element miscibility is required to effectively synthesize such unknown crystal phases. In this study, we demonstrated that the temperature required for the formation of the Z3 structure largely depends on the diffusion path of Fe into PdIn x or In into FePd3 alloy nanoparticles. The results indicate that the design of the diffusion path should be considered to develop unexplored crystal phases, especially in alloy systems containing an immiscible pair of elements.

    DOI： 10.1039/d5sc01754h

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  • Construction of functionalized catalysts for efficient urea-assisted hydrogen evolution reaction in alkaline media via a partial sulfidation strategy on a nickel–iron spinel compound Reviewed

    Long Qian, Yao Zhu, Yuhao Yin, Songlin Xue, Yuting Dai, Tao Zhang, Dongya Yang, Toshiharu Teranishi, Fengxian Qiu

    Chemical Communications   61 ( 69 )   12968 - 12971   2025.7

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    Partial sulfidation on nickel–iron spinel (S-NiFeOV/NF) optimizes the electronic structure and activates the catalytically active species NiOOH, which effectively accelerates the adsorption of catalytic intermediates and the kinetic process.

    DOI： 10.1039/d5cc03036f

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  • Structure-Activity Relationship in PtCo L10 Ordered Phase ORR Catalysts: Pt-Rich Shell Having Anisotropic Lattice Distortion Revealed by PDF and XAS Analysis. Reviewed International journal

    Yunfei Gao, Mukesh Kumar, Neha Thakur, Weijie Cao, Toshiki Watanabe, Satoshi Tominaka, Kazutaka Sonobe, Akihiko Machida, Ryota Sato, Toshiharu Teranishi, Masashi Matsumoto, Hideto Imai, Tomoya Uruga, Yoshiharu Sakurai, Yoshiharu Uchimoto

    ACS applied materials & interfaces   17 ( 21 )   30825 - 30838   2025.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    Ordered intermetallic PtCo alloys are promising candidates for next-generation low-Pt catalysts in proton exchange membrane fuel cells (PEMFCs) due to their high activity and stability originating from ligand and strain effects. However, the influence of the ordered phase on the surface structure, especially after Pt-rich shell formation, remains poorly understood. In this study, we systematically investigated the structural and electrochemical properties of PtCo catalysts with varying degrees of ordering, prepared by controlling the annealing temperature and time. We combined X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), scanning transmission electron microscopy (STEM), and pair distribution function (PDF) analysis to elucidate the correlation between the ordering degree, the atomic structure, and the electrochemical performance. For the first time, our detailed X-ray total scattering measurements revealed the true structural characteristics of PtCo alloys, indicating that the phase types and their relative contents vary significantly with the ordering degree. The ordered PtCo catalysts develop a Pt-rich surface layer with anisotropic strain, featuring contracted Pt-Pt distances along the surface and elongated distances across the surface, which likely contributes to its enhanced ORR activity and stability compared to their disordered counterparts. The electrochemical studies and PDF analysis suggested that the ordering transition occurs concurrently with particle growth, leading to an abrupt increase in the ORR activity at 350 °C before forming a long-range ordered phase, suggesting that local structural changes at the particle surface play a crucial role in enhancing the ORR activity. Further, operando XAS studies confirm lesser Pt-oxidation and Pt-OH formation for ordered structures than disordered ones. We believe that our findings provide new insights into the relationship between the ordering degree, particle growth, and catalytic properties of PtCo catalysts, offering guidance for the design of high-performance electrocatalysts with optimized surface structures.

    DOI： 10.1021/acsami.5c03118

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  • Mechanistic Insights into Reactions between Gold-Based Materials and Dioxygen. Invited Reviewed International journal

    Wataru Suzuki, Toshiharu Teranishi

    ChemPlusChem   e2500244   2025.5

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    Gold (Au) exhibits distinct reactivities with O2 from the nanometer to atomic scales, whereas bulk Au is chemically inert. Since the discovery of catalytic reactivities in Au-based materials, including nanoparticles, molecular complexes, and nanoclusters (AuNCs), mechanistic insights into the interaction and reductive activation of O2 by Au have been pursued by researchers. However, atomic-level understanding of the reaction mechanism remains elusive compared with that for other widely explored transition metal-O2 systems. This article briefly discusses recent progress in clarifying the reaction mechanisms of Au-O2 chemistry for homogeneous molecular Au complexes and atomically precise AuNCs. Research focuses on (1) O2 activation by Au complexes without the distinct formation of conventional metal-hydride species, and (2) the application of kinetic analyses to the reaction of thiolate-protected AuNCs with O2 to quantify parameters such as O2-binding constants on the Au surface. These findings help elucidate both the Au-O2 interaction and reductive activation of O2, which are essential in catalytic systems using O2 as a terminal oxidant that can contribute to the developments of ecofriendly oxidation Au-based catalysts with high performance.

    DOI： 10.1002/cplu.202500244

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  • Effects of non-fused and fused substituents in quinoxaline-based central units on conformation, aggregation, and photovoltaic properties of non-fused ring electron acceptors Reviewed

    Kenta Yamada, Wataru Suzuki, Motohisa Kubota, Junichi Inamoto, Mizuho Kondo, Tomoyuki Koganezawa, Yuki Chiga, Ryo Takahata, Toshiharu Teranishi, Hiroshi Imahori, Tomokazu Umeyama

    Journal of Materials Chemistry C   13 ( 16 )   7984 - 7995   2025.3

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    Substituents of the quinoxaline core influence the aggregation properties of S-shaped acceptors.

    DOI： 10.1039/d5tc00204d

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  • Structural Control of PtNi Catalysts through Precise Synthesis Conditions and Elucidation of Property Determinants by Operando XAS Analysis Reviewed

    Weijie CAO, Neha THAKUR, Mukesh KUMAR, Mitsuhiro MATSUMOTO, Ryota SATO, Toshiharu TERANISHI, Hideto IMAI, Yoshiharu UCHIMOTO

    Electrochemistry   2025.3

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.5796/electrochemistry.25-00010

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  • One-step preparation of three-dimensional superlattices during nanoparticle synthesis Invited Reviewed

    Masaki Saruyama, Nao Nagai, Yan Xia, Toshiharu Teranishi

    Nano Research   2025.2

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    Authorship：Last author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Tsinghua University Press  

    DOI： 10.26599/nr.2025.94907284

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  • An Icosahedral 55-Atom Iron Hydride Cluster Protected by Tri-tert-butylphosphines Reviewed

    Tatsuya Higaki, Kanata Tanaka, Hitoshi Izu, Shunya Oishi, Koki Kawamoto, Mizuki Tada, W. M. C. Sameera, Ryo Takahata, Toshiharu Teranishi, Soichi Kikkawa, Seiji Yamazoe, Takuya Shiga, Masayuki Nihei, Tatsuhisa Kato, Roger E. Cramer, Zihan Zhang, Karsten Meyer, Yasuhiro Ohki

    Journal of the American Chemical Society   2025.1

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    Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/jacs.4c12759

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  • Atomic diffusion barriers and inter-element miscibility guide the development of unexplored crystal phases

    Kenshi Matsumoto, Masaki Kudo, Yasutomi Tatetsu, Ryota Sato, Ryo Takahata, Toshiharu Teranishi

    Chemical Science   2025

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    Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    The formation temperature of the Z3 structure is strongly influenced by the diffusion path of Fe into PdInx or In into FePd3 nanoparticles, underscoring the importance of designing suitable diffusion pathways to access unexplored crystal phases.

    DOI： 10.1039/d5sc01754h

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  • Unveiling the Antithermal Quenching Behavior in 0D Inorganic Metal Halide Cs2InCl5(H2O) Mediated by Upconversion Emission. International journal

    Maohao Yang, Wanyin Ge, Toshiharu Teranishi

    Inorganic chemistry   63 ( 51 )   24400 - 24409   2024.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    Inorganic metal halides (IMHs) often suffer from severe fluorescence thermal quenching, limiting their application at elevated temperatures. Therefore, the exploration of IMHs exhibiting antithermal quenching (ATQ) behavior is of great importance. In this study, we developed a green synthetic route using a solvent evaporation method to successfully synthesize the 0D IMHs Cs2InCl5(H2O). By precise control over the doping ratios of Sb3+, Yb3+, and Er3+, unique dual-mode emission properties are obtained. As the temperature increases, the compound exhibited downconversion and upconversion luminescence, with relative sensitivity SR-max values of 7.11% K-1 and 1.21% K-1, respectively. Particularly anomalous is the compound's manifestation of an unconventional ATQ behavior during the upconversion process. In situ structural analysis confirmed that under high-temperature conditions, the 0D Cs2InCl5(H2O) metal halide undergoes structural evolution, transitioning through a Cs3In2Cl9 phase, which is responsible for the ATQ. This study provides experimental evidence for the abnormal ATQ of 0D metal halides, offering new inspiration for the multifunctionalization of 0D metal halides in high-temperature temperature sensing and dual-mode luminescence.

    DOI： 10.1021/acs.inorgchem.4c04557

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  • Waning-and-waxing shape changes in ionic nanoplates upon cation exchange Reviewed

    Zhanzhao Li, Masaki Saruyama, Toru Asaka, Toshiharu Teranishi

    Nature Communications   15 ( 1 )   4899   2024.12

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1038/s41467-024-49294-x

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  • Internal Electric Field Manipulates Exciton–Phonon Couplings in Single Lead Halide Perovskite Nanocrystals

    Kenichi Cho, Hirokazu Tahara, Takumi Yamada, Mitsuki Muto, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

    The Journal of Physical Chemistry Letters   11969 - 11974   2024.11

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    Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/acs.jpclett.4c03016

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  • Effect of Peripheral Functionalization of Pt(II) Porphyrin(2.1.2.1) on Singlet Oxygen Generation. International journal

    Feng Chen, Xiaojuan Lv, Daiki Kuzuhara, Tao Zhang, Jianming Pan, Fengxian Qiu, Toshiharu Teranishi, Songlin Xue

    Inorganic chemistry   63 ( 44 )   21025 - 21030   2024.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    Four structurally bent porphyrin(2.1.2.1) Pt(II) complexes have been obtained and verified well. Main absorbance of Pt(II) porphyrin(2.1.2.1) displayed a significant red-shift compared to that of porphyrin(1.1.1.1) Pt(II) molecules. 1O2 study indicated that electron-withdrawing group and intramolecular charge transfer effect synergistically endowed Pt(II) porphyrin(2.1.2.1) with good singlet oxygen-sensitizing capacity under blue LED light irradiation. This work presents a simple synthesis way to develop a new series of efficient porphyrinoid singlet oxygen photosensitizers for PDT through molecular engineering.

    DOI： 10.1021/acs.inorgchem.4c02924

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  • Quantitative analysis of air-oxidation reactions of thiolate-protected gold nanoclusters. International journal

    Wataru Suzuki, Ryo Takahata, Yoshiyuki Mizuhata, Norihiro Tokitoh, Songlin Xue, Toshiharu Teranishi

    Chemical science   15 ( 45 )   18896 - 902   2024.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    The interaction of dioxygen (O2) with inorganic nanomaterials is one of the most essential steps to understanding the reaction mechanism of O2-related reactions. However, quantitative analyses for O2-binding processes and subsequent oxidation reactions on the surface are still elusive, whereas the reaction of O2 with molecules such as transition metal complexes has been widely explored. Herein, we have quantitatively evaluated reaction processes of air-oxidation reactions of atomically precise thiolate-protected Au25 nanoclusters ([Au25(SR)18]-) as a model of O2 activation by inorganic nanomaterials. Kinetic analyses on the air-oxidation reaction of [Au25(SR)18]- revealed a controlling factor for O2-activation processes, which could be finely tunable by the protecting thiolate ligands.

    DOI： 10.1039/d4sc02995j

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  • A Modified Galvanic Cell Synthesis of Pd@Pt Core–Shell Nanowire Catalysts: Structural Insights and Enhanced ORR Performance

    Weijie Cao, Mukesh Kumar, Neha Thakur, Tomoki Uchiyama, Yunfei Gao, Satoshi Tominaka, Akihiko Machida, Toshiki Watanabe, Ryota Sato, Toshiharu Teranishi, Masashi Matsumoto, Hideto Imai, Yoshiharu Sakurai, Yoshiharu Uchimoto

    ACS Applied Energy Materials   2024.9

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    Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/acsaem.4c01444

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  • Local aromatic ring cleaves the global aromatic ring in hexaphyrin(2.1.2.1.2.1)

    Xiaojuan Lv, Yuting Dong, Hongliang Huang, Dariusz W. Szczepanik, Naoki Aratani, Takahisa Ikeue, Feng Chen, Tao Zhang, Fengxian Qiu, Toshiharu Teranishi, Songlin Xue

    Chinese Chemical Letters   110435 - 110435   2024.9

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.cclet.2024.110435

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  • Dioxygen Activation by Gold(I)‐Distorted Porphyrin Dinuclear Complexes Reviewed

    Wataru Suzuki, Yoshiyuki Mizuhata, Norihiro Tokitoh, Toshiharu Teranishi

    Chemistry – A European Journal   30 ( 48 )   e202401242-1 - e202401242-5   2024.8

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Wiley  

    Abstract

    Interactions between gold‐based materials and dioxygen (O2) have motivated researchers to understand reaction mechanisms for O2 activation by homo‐ and heterogeneous gold catalysts. In this work, gold(I) porphyrin dinuclear complexes were synthesized with a saddle‐distorted porphyrin ligand. The gold(I) porphyrin complexes showed unprecedented O2 activation in the presence of protic solvents to form gold(III) tetradentate porphyrin complexes. Mechanistic insights into the O2 activation by the gold(I) center were elucidated by spectroscopic measurements and theoretical calculations, revealing that dissociation of halides on the gold(I) center by alcohol solvents and hydrogen bonding of an N−H proton in the distorted porphyrin with dioxygen played important roles in establishing the unique reactivities of gold(I) complexes.

    DOI： 10.1002/chem.202401242

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  • Synthesis of π-Ring-Fused Porphyrin(2.1.1.1)s and Their Rh(I) Complexes Reviewed

    Yuting Dong, Fan Wu, Tao Zhang, Fengxian Qiu, Jianming Pan, Yoshiyuki Mizuhata, Hiroko Yamada, Toshiharu Teranishi, Songlin Xue

    Inorganic Chemistry   63 ( 33 )   15510 - 15515   2024.8

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/acs.inorgchem.4c02669

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  • Reversible “on–off” conversion and ultra-high temperature sensitivity of a zero-dimensional lead-free Cs2InBr5(H2O):Sb3+ perovskite Reviewed

    Maohao Yang, Wanyin Ge, Kenshi Matsumoto, Masaki Saruyama, Ryota Sato, Haruka Takekuma, Ryo Takahata, Toshiharu Teranishi

    Inorganic Chemistry Frontiers   11 ( 17 )   5536 - 5545   2024.7

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    We observed that the water molecule in the Cs2InBr5(H2O):Sb3+ molecular structure acts as a switch, facilitating an “on–off–on” cycle that can be repeated multiple times, overcoming the limitations of materials that exhibit singular responses.

    DOI： 10.1039/d4qi01164c

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  • Reusable Magnetite Nanoparticle (Fe<inf>3</inf>O<inf>4</inf> NP) Catalyst for Selective Oxidation of Alcohols under Microwave Irradiation

    Francesca Pincella, Katsuhiro Isozaki, Ryota Sato, Toshiharu Teranishi, Hikaru Takaya, Masaharu Nakamura

    ACS Omega   9 ( 23 )   24477 - 24488   2024.6

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsomega.4c00361

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  • Resonant tunneling in a colloidal CdS semiconductor quantum-dot single-electron transistor based on heteroepitaxial-spherical Au/Pt nanogap electrodes

    Genki Ohkatsu, Takumi Nishinobo, Masaki Saruyama, Toshiharu Teranishi, Yutaka Majima

    Nanoscale Advances   6 ( 17 )   4346 - 4351   2024.6

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    Resonant tunneling current flows through unique discrete energy levels on a single-semiconductor quantum dot (QD) junction in addition to single-electron tunneling current.

    DOI： 10.1039/d4na00288a

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  • Stabilization of the Neutral [25]Hexaphyrin(1.0.1.0.1.0) Radical by Hetero-Bimetal-Coordination

    Songlin Xue, Yuting Dong, Xiaojuan Lv, Fengxian Qiu, Yue Wang, Hiroyuki Furuta, Toshiharu Teranishi, Fan Wu

    Chemistry - A European Journal   30 ( 30 )   2024.5

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/chem.202400812

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  • Evolution of fractal patterns in lead-free zero-dimensional perovskite Cs<inf>2</inf>InBr<inf>5</inf>(H<inf>2</inf>O)

    Wanyin Ge, Maohao Yang, Masaki Saruyama, Kenshi Matsumoto, Ryota Sato, Haruka Takekuma, Ryo Takahata, Toshiharu Teranishi

    CrystEngComm   26 ( 19 )   2571 - 2576   2024.4

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/d4ce00204k

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  • Intrinsic Visible Plasmonic Properties of Colloidal PtIn<inf>2</inf> Intermetallic Nanoparticles

    Haruka Takekuma, Ryota Sato, Kenji Iida, Tokuhisa Kawawaki, Mitsutaka Haruta, Hiroki Kurata, Katsuyuki Nobusada, Toshiharu Teranishi

    Advanced Science   11 ( 10 )   2024.3

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/advs.202307055

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  • Benzene-fused porphyrin(2.1.2.1) array: synthesis, structure, and electrocatalytic hydrogen evolution

    Yuting Dong, Long Qian, Feng Chen, Yue Wang, Tao Zhang, Fengxian Qiu, Toshiharu Teranishi, Songlin Xue

    Chemical Communications   60 ( 29 )   3986 - 3989   2024.3

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/d4cc00267a

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  • Tuning the Direction of Photoinduced Electron Transfer in Porphyrin-Protected Gold Clusters

    Yuki Chiga, Wataru Suzuki, Ryo Takahata, Etsuki Kobiyama, Hirokazu Tahara, Yoshihiko Kanemitsu, Masahiro Shibuta, Masanori Sakamoto, Toshiharu Teranishi

    The Journal of Physical Chemistry C   128 ( 9 )   3824 - 3831   2024.2

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    Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/acs.jpcc.3c06402

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  • Size Dependence of Trion and Biexciton Binding Energies in Lead Halide Perovskite Nanocrystals Reviewed

    Kenichi Cho, Takao Sato, Takumi Yamada, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Hidekatsu Suzuura, Yoshihiko Kanemitsu

    ACS Nano   18 ( 7 )   5723 - 5729   2024.2

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/acsnano.3c11842

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  • Coherent electronic coupling in quantum dot solids induces cooperative enhancement of nonlinear optoelectronic responses

    Hirokazu Tahara, Masanori Sakamoto, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Nature Nanotechnology   19 ( 6 )   744 - 750   2024.1

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    Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1038/s41565-024-01601-9

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    Other Link： https://www.nature.com/articles/s41565-024-01601-9

  • Structural insights and electronic state analysis of PtNi nanowire catalysts by operando high-energy resolution fluorescence detection X-ray absorption spectroscopy

    Weijie Cao, Neha Thakur, Mukesh Kumar, Tomoki Uchiyama, Yunfei Gao, Satoshi Tominaka, Akihiko Machida, Toshiki Watanabe, Ryota Sato, Toshiharu Teranishi, Masashi Matsumoto, Hideto Imai, Yoshiharu Sakurai, Yoshiharu Uchimoto

    Journal of Materials Chemistry A   2024

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    Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    Operando conventional and high-energy resolution fluorescence detection X-ray absorption spectroscopy were used to study the oxidation states and Pt–Pt bond length changes in PtNi nanowire catalysts under oxygen reduction reaction conditions.

    DOI： 10.1039/d4ta03538k

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  • Pseudomorphic amorphization of three-dimensional superlattices through morphological transformation of nanocrystal building blocks

    Masaki Saruyama, Ryo Takahata, Ryota Sato, Kenshi Matsumoto, Lingkai Zhu, Yohei Nakanishi, Motoki Shibata, Tomotaka Nakatani, So Fujinami, Tsukasa Miyazaki, Mikihito Takenaka, Toshiharu Teranishi

    Chemical Science   15 ( 7 )   2425 - 2432   2024

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    Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    The dynamic order-to-disorder transition of nanocrystal arrangements in three-dimensional superlattices is caused by the morphological transformation of nanocrystal constituents during the direct liquid-phase synthesis of superlattices.

    DOI： 10.1039/d3sc05085h

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  • Investigating Degradation Mechanisms in PtCo Alloy Catalysts: The Role of Co Content and a Pt-Rich Shell Using Operando High-Energy Resolution Fluorescence Detection X-ray Absorption Spectroscopy

    Yunfei Gao, Neha Thakur, Tomoki Uchiyama, Weijie Cao, Kentaro Yamamoto, Toshiki Watanabe, Mukesh Kumar, Ryota Sato, Toshiharu Teranishi, Hideto Imai, Yoshiharu Sakurai, Yoshiharu Uchimoto

    ACS Applied Materials &amp; Interfaces   2023.10

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    Publishing type：Research paper (scientific journal)   Publisher：American Chemical Society (ACS)  

    DOI： 10.1021/acsami.3c11248

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  • Origin of High Activity and Durability of Confined Ordered Intermetallic PtCo Catalysts for the Oxygen Reduction Reaction in Rotating Disk Electrode and Fuel Cell Operating Conditions

    Yunfei Gao, Tomoki Uchiyama, Kentaro Yamamoto, Toshiki Watanabe, Satoshi Tominaka, Neha Thakur, Ryota Sato, Toshiharu Teranishi, Hideto Imai, Yoshiharu Sakurai, Yoshiharu Uchimoto

    ACS Catalysis   10988 - 11000   2023.8

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    DOI： 10.1021/acscatal.3c01926

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  • Location-selective immobilisation of single-atom catalysts on the surface or within the interior of ionic nanocrystals using coordination chemistry. International journal

    Kenichi Endo, Masaki Saruyama, Toshiharu Teranishi

    Nature communications   14 ( 1 )   4241 - 4241   2023.7

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    Single-atom catalysts dispersed on support materials show excellent heterogeneous catalytic properties that can be tuned using the interactions between the single atoms and the support. Such interactions depend on whether the single atoms are located on the surface or within the interior of the support. However, little is known about immobilising single atoms on the surface or within the interior of supports deliberately and selectively. Herein, such location-selective placement of single atoms is achieved through the choice of metal complex precursor, solvent, and workup procedure. Using CdSe nanoplatelets as a support, a cis-[PtCl2(SO(CH3)2)2] precursor in an aprotic solvent exclusively attaches single Pt atoms on the surface of the support. In contrast, a [PtCl4]2- precursor in a protic solvent followed by amine treatment places 60% of the single Pt atoms inside the support by cation substitution. The surface-adsorbed single Pt atoms show higher stability in photocatalytic hydrogen evolution than the substituted ones, and the preclusion of substitution as internal Pt maximises the activity. Thus, this study provides a viable strategy for the structurally precise synthesis and design of single-atom catalysts.

    DOI： 10.1038/s41467-023-40003-8

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  • Isomer-Selective Conversion of Au Clusters by Au(I) Thiolate Insertion

    Yuki Chiga, Ryo Takahata, Wataru Suzuki, Yoshiyuki Mizuhata, Norihiro Tokitoh, Toshiharu Teranishi

    Inorganic Chemistry   2023.6

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    DOI： 10.1021/acs.inorgchem.3c01442

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  • Picosecond trion photocurrent dynamics in FAPbI3 quantum dot films

    Etsuki Kobiyama, Hirokazu Tahara, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Applied Physics Letters   122 ( 25 )   2023.6

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    Nanocrystal quantum dot (QD) films have been highlighted as unique building blocks of optoelectronic devices due to their unique properties based on electronic interactions among close-packed QDs. Although the creation and annihilation processes of trions play important roles in optical responses of isolated QDs, their contributions to photocurrent conversion processes in QD films are unclear. Here, we studied trion dynamics in QD films by transient photocurrent measurements. We observed that the transient photocurrent signal has two decay components: a fast trion component with a lifetime shorter than 1 ns and a slow exciton component with several tens of nanoseconds. Moreover, we control the signal amplitude of the fast trion decay component by tuning extra charge doping to QDs. These results demonstrate the control of optoelectronic responses of QD films via bias electric voltage and will pave the way for QD-based ultrafast optoelectronics.

    DOI： 10.1063/5.0154927

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  • Protection Against Absorption Passivation on Platinum by a Nitrogen-Doped Carbon Shell for Enhanced Oxygen Reduction Reaction

    Yunfei Gao, Tomoki Uchiyama, Kentaro Yamamoto, Toshiki Watanabe, Neha Thakur, Ryota Sato, Toshiharu Teranishi, Hideto Imai, Yoshiharu Sakurai, Yoshiharu Uchimoto

    ACS Applied Materials &amp; Interfaces   2023.6

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    DOI： 10.1021/acsami.3c04459

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  • Temperature dependence of photoluminescence spectrum of single lead halide perovskite nanocrystals: Effect of size on the phase transition temperature. International journal

    Kenichi Cho, Takumi Yamada, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

    The Journal of chemical physics   158 ( 20 )   2023.5

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    Photoluminescence (PL) spectroscopy of individual semiconductor nanocrystals (NCs) is a powerful method for understanding the intrinsic optical properties of these materials. Here, we report the temperature dependence of the PL spectra of single perovskite FAPbBr3 and CsPbBr3 NCs [FA = HC(NH2)2]. The temperature dependences of the PL linewidths were mainly determined by the Fröhlich interaction between excitons and longitudinal optical phonons. For FAPbBr3 NCs, a redshift in the PL peak energy appeared between 100 and 150 K, which was because of the orthorhombic-to-tetragonal phase transition. We found that the phase transition temperature of FAPbBr3 NCs decreases with decreasing NC size.

    DOI： 10.1063/5.0143201

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  • Stabilization of unprecedented crystal phases of metal nanomaterials

    Kenshi Matsumoto, Ryota Sato, Toshiharu Teranishi

    Trends in Chemistry   5 ( 3 )   201 - 213   2023.3

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    DOI： 10.1016/j.trechm.2022.12.011

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  • Harnessing infrared solar energy with plasmonic energy upconversion Reviewed

    Zichao Lian, Yoichi Kobayashi, Junie Jhon M. Vequizo, Chandana Sampath Kumara Ranasinghe, Akira Yamakata, Takuro Nagai, Koji Kimoto, Katsuaki Kobayashi, Koji Tanaka, Toshiharu Teranishi, Masanori Sakamoto

    Nature Sustainability   5 ( 10 )   2022.10

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    DOI： 10.1038/s41893-022-00975-9

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  • Bifunctional Platinum‐Incorporated Polyoxoniobate Derived Catalyst for N ‐formylation of Piperidine Using CO 2

    Vorakit Chudatemiya, Soichi Kikkawa, Jun Hirayama, Ryo Takahata, Toshiharu Teranishi, Masazumi Tamura, Seiji Yamazoe

    Asian Journal of Organic Chemistry   12 ( 2 )   2022.10

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    DOI： 10.1002/ajoc.202200521

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  • Exciton-Phonon and Trion-Phonon Couplings Revealed by Photoluminescence Spectroscopy of Single CsPbBr3 Perovskite Nanocrystals. Reviewed International journal

    Kenichi Cho, Hirokazu Tahara, Takumi Yamada, Hidekatsu Suzuura, Terumasa Tadano, Ryota Sato, Masaki Saruyama, Hideki Hirori, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Nano Letters   22 ( 18 )   7674 - 7681   2022.9

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    Lead halide perovskite nanocrystals (NCs) have outstanding photoluminescence (PL) properties and excellent potential for light-emitting diodes and single-photon sources. Here, we report the multiple-peak structures originating from excitons, trions, and biexcitons in low-temperature PL spectra of single CsPbBr3 NCs. We found fine-structure splitting in the PL peaks of bright excitons and biexcitons and also in the longitudinal-optical (LO)-phonon replicas of excitons. LO-phonon replicas of trions are clearly observed under strong photoexcitation, which do not show fine-structure splitting. From size-dependent analyses of these replicas, we clarified that both exciton-phonon and trion-phonon couplings become larger for smaller NCs and the coupling strengths of trions are larger than those of excitons in large NCs. These behaviors can be explained by the spatial distributions of the electron and hole wave functions in the NCs. Our findings provide essential information on electron-phonon couplings in perovskites and for the design of high-purity single-photon sources.

    DOI： 10.1021/acs.nanolett.2c02970

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  • Control over Ligand-Exchange Positions of Thiolate-Protected Gold Nanoclusters Using Steric Repulsion of Protecting Ligands Reviewed

    Wataru Suzuki, Ryo Takahata, Yuki Chiga, Soichi Kikkawa, Seiji Yamazoe, Yoshiyuki Mizuhata, Norihiro Tokitoh, Toshiharu Teranishi

    Journal of the American Chemical Society   144 ( 27 )   12310 - 12320   2022.7

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    DOI： 10.1021/jacs.2c03670

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  • Exciton Recycling in Triplet Energy Transfer from a Defect-Rich Quantum Dot to an Organic Molecule Reviewed

    Jie Zhang, Yuki Chiga, Hironori Kouno, Nobuhiro Yanai, Nobuo Kimizuka, Toshiharu Teranishi, Masanori Sakamoto

    The Journal of Physical Chemistry C   126 ( 28 )   11674 - 11679   2022.7

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    DOI： 10.1021/acs.jpcc.2c03107

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  • Dual functional catalysis of [Nb6O19]8−-modified Au/Al2O3 Reviewed

    Soichi Kikkawa, Shoji Fukuda, Jun Hirayama, Naoki Shirai, Ryo Takahata, Kosuke Suzuki, Kazuya Yamaguchi, Toshiharu Teranishi, Seiji Yamazoe

    Chemical Communications   58 ( 64 )   9018 - 9021   2022.7

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    Supported Au nanoparticles modified with basic Lindqvist-type [Nb6O19]8− clusters were fabricated by a simple adsorption method and exhibited efficient reduction activity for p-nitrophenol due to the base and reduction dual functional catalysis.

    DOI： 10.1039/d2cc02472a

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  • Size-controlled quantum dots reveal the impact of intraband transitions on high-order harmonic generation in solids

    Kotaro Nakagawa, Hideki Hirori, Shunsuke A. Sato, Hirokazu Tahara, Fumiya Sekiguchi, Go Yumoto, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

    NATURE PHYSICS   18 ( 8 )   874 - 878   2022.6

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    DOI： 10.1038/s41567-022-01639-3

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  • Bimetallic Synergy in Ultrafine Cocatalyst Alloy Nanoparticles for Efficient Photocatalytic Water Splitting Reviewed

    Christian Mark Pelicano, Masaki Saruyama, Ryo Takahata, Ryota Sato, Yasutaka Kitahama, Hiroyuki Matsuzaki, Taro Yamada, Takashi Hisatomi, Kazunari Domen, Toshiharu Teranishi

    Advanced Functional Materials   32   2202987   2022.5

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    DOI： 10.1002/adfm.202202987

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  • Band Engineering-Tuned Localized Surface Plasmon Resonance in Diverse-Phased Cu2-xSySe1-y Nanocrystals Reviewed

    Han Li, Masahiro Shibuta, Takashi Yamada, Hajime Hojo, Hiroyuki S. Kato, Toshiharu Teranishi, Masanori Sakamoto

    JOURNAL OF PHYSICAL CHEMISTRY C   126 ( 18 )   8107 - 8112   2022.4

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    DOI： 10.1021/acs.jpcc.2c01149

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  • In Situ Control of Crystallinity of 3D Colloidal Crystals by Tuning the Growth Kinetics of Nanoparticle Building Blocks

    Fumiko Nakagawa, Masaki Saruyama, Ryo Takahata, Ryota Sato, Kenshi Matsumoto, Toshiharu Teranishi

    Journal of the American Chemical Society   144 ( 13 )   5871 - 5877   2022.3

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    DOI： 10.1021/jacs.1c12456

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  • Bridging electrocatalyst and cocatalyst studies for solar hydrogen production via water splitting Invited Reviewed

    Masaki Saruyama, Christian Mark Pelicano, Toshiharu Teranishi

    Chemical Science   13 ( 10 )   2824 - 2840   2022.2

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    This perspective briefly reviews recently developed water splitting electrocatalyst materials and discusses their utilization as cocatalysts for photocatalytic and photoelectrochemical water splitting systems.

    DOI： 10.1039/d1sc06015e

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  • Inter-element miscibility driven stabilization of ordered pseudo-binary alloy Reviewed

    Kenshi Matsumoto, Ryota Sato, Yasutomi Tatetsu, Ryo Takahata, Seiji Yamazoe, Miho Yamauchi, Yuji Inagaki, Yoichi Horibe, Masaki Kudo, Takaaki Toriyama, Mitsunari Auchi, Mitsutaka Haruta, Hiroki Kurata, Toshiharu Teranishi

    Nature Communications   13 ( 1 )   1047   2022.2

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    Abstract

    An infinite number of crystal structures in a multicomponent alloy with a specific atomic ratio can be devised, although only thermodynamically-stable phases can be formed. Here, we experimentally show the first example of a layer-structured pseudo-binary alloy, theoretically called Z3-FePd3. This Z3 structure is achieved by adding a small amount of In, which is immiscible with Fe but miscible with Pd and consists of an alternate L10 (CuAu-type)-PdFePd trilayer and Pd–In ordered alloy monolayer along the c axis. First-principles calculations strongly support that the specific inter-element miscibility of In atoms stabilizes the thermodynamically-unstable Z3-FePd3 phase without significantly changing the original density of states of the Z3-FePd3 phase. Our results demonstrate that the specific inter-element miscibility can switch stable structures and manipulate the material nature with a slight composition change.

    DOI： 10.1038/s41467-022-28710-0

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  • Photo-Induced Charge Carrier Dynamics of Metal Halide Perovskite

    Maning Liu, Mohamed Abodya, Weisi Dai, Tokuhisa Kawawaki, Ai Shimazaki, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Atsushi Wakamiya, Yasuhiro Tachibana

    Proceedings of AM-FPD 2022 - 29th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials   13 - 16   2022

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    DOI： 10.23919/AM-FPD54920.2022.9851264

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  • Formation and Stability of Cs<inf>2</inf>SnBr<inf>6</inf> Perovskite Nanocrystals from CsSn<inf>2</inf>Br<inf>5</inf> Nanocubes

    Maning Liu, Mohamed Abodya, Weisi Dai, Tokuhisa Kawawaki, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yasuhiro Tachibana

    Journal of Photopolymer Science and Technology   35 ( 3 )   199 - 204   2022

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    DOI： 10.2494/photopolymer.35.199

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  • Synthesis of mesoscopic particles of multi-component rare earth permanent magnet compounds Invited Reviewed

    T. Thuy Trinh, Jungryang Kim, Ryota Sato, Kenshi Matsumoto, Toshiharu Teranishi

    Science and Technology of Advanced Materials   22 ( 1 )   37 - 54   2021.12

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    DOI： 10.1080/14686996.2020.1862630

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  • Collective enhancement of quantum coherence in coupled quantum dot films

    Hirokazu Tahara, Masanori Sakamoto, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Physical Review B   104 ( 24 )   2021.12

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    DOI： 10.1103/physrevb.104.l241405

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  • Strong spin-orbit coupling inducing Autler-Townes effect in lead halide perovskite nanocrystals Reviewed International journal

    Go Yumoto, Hideki Hirori, Fumiya Sekiguchi, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Nature Communications   12 ( 1 )   3026 - 3026   2021.12

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    <title>Abstract</title>Manipulation of excitons via coherent light-matter interaction is a promising approach for quantum state engineering and ultrafast optical modulation. Various excitation pathways in the excitonic multilevel systems provide controllability more efficient than that in the two-level system. However, these control schemes have been restricted to limited control-light wavelengths and cryogenic temperatures. Here, we report that lead halide perovskites can lift these restrictions owing to their multiband structure induced by strong spin-orbit coupling. Using CsPbBr3 perovskite nanocrystals, we observe an anomalous enhancement of the exciton energy shift at room temperature with increasing control-light wavelength from the visible to near-infrared region. The enhancement occurs because the interconduction band transitions between spin-orbit split states have large dipole moments and induce a crossover from the two-level optical Stark effect to the three-level Autler-Townes effect. Our finding establishes a basis for efficient coherent optical manipulation of excitons utilizing energy states with large spin-orbit splitting.

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  • Gold Nanocluster Functionalized with Peptide Dendron Thiolates: Acceleration of the Photocatalytic Oxidation of an Amino Alcohol in a Supramolecular Reaction Field

    Katsuhiro Isozaki, Ryo Ueno, Kosuke Ishibashi, Genta Nakano, Haozhi Yin, Kenta Iseri, Masanori Sakamoto, Hikaru Takaya, Toshiharu Teranishi, Masaharu Nakamura

    ACS Catalysis   11 ( 21 )   13180 - 13187   2021.11

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    DOI： 10.1021/acscatal.1c03394

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  • Near-Unity Singlet Fission on a Quantum Dot Initiated by Resonant Energy Transfer Reviewed

    Jie Zhang, Hayato Sakai, Katsuaki Suzuki, Taku Hasobe, Nikolai V. Tkachenko, I. Ya Chang, Kim Hyeon-Deuk, Hironori Kaji, Toshiharu Teranishi, Masanori Sakamoto

    Journal of the American Chemical Society   143 ( 42 )   17388 - 17394   2021.10

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    DOI： 10.1021/jacs.1c04731

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  • Creation of High‐Performance Heterogeneous Photocatalysts by Controlling Ligand Desorption and Particle Size of Gold Nanocluster Reviewed

    Tokuhisa Kawawaki, Yuki Kataoka, Momoko Hirata, Yuki Akinaga, Ryo Takahata, Kosuke Wakamatsu, Yu Fujiki, Miori Kataoka, Soichi Kikkawa, Abdulrahman S. Alotabi, Sakiat Hossain, D. J. Osborn, Toshiharu Teranishi, Gunther G. Andersson, Gregory F. Metha, Seiji Yamazoe, Yuichi Negishi

    Angewandte Chemie International Edition   60 ( 39 )   21340 - 21350   2021.9

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    DOI： 10.1002/anie.202104911

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  • Luminescence Fine Structures in Single Lead Halide Perovskite Nanocrystals: Size Dependence of the Exciton–Phonon Coupling Reviewed

    Kenichi Cho, Takumi Yamada, Hirokazu Tahara, Terumasa Tadano, Hidekatsu Suzuura, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Nano Letters   21 ( 17 )   7206 - 7212   2021.9

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    DOI： 10.1021/acs.nanolett.1c02122

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  • Determinants of crystal structure transformation of ionic nanocrystals in cation exchange reactions Reviewed

    Zhanzhao Li, Masaki Saruyama, Toru Asaka, Yasutomi Tatetsu, Toshiharu Teranishi

    Science   373 ( 6552 )   332 - 337   2021.7

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    Changes in the crystal system of an ionic nanocrystal during a cation exchange reaction are unusual yet remain to be systematically investigated. In this study, chemical synthesis and computational modeling demonstrated that the height of hexagonal-prism roxbyite (Cu1.8S) nanocrystals with a distorted hexagonal close-packed sulfide anion (S2−) sublattice determines the final crystal phase of the cation-exchanged products with Co2+ [wurtzite cobalt sulfide (CoS) with hexagonal close-packed S2– and/or cobalt pentlandite (Co9S8) with cubic close-packed S2–]. Thermodynamic instability of exposed planes drives reconstruction of anion frameworks under mild reaction conditions. Other incoming cations (Mn2+, Zn2+, and Ni2+) modulate crystal structure transformation during cation exchange reactions by various means, such as volume, thermodynamic stability, and coordination environment.

    DOI： 10.1126/science.abh2741

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  • Bragg coherent diffraction imaging allowing simultaneous retrieval of three-dimensional shape and strain distribution for 40–500-nm particles Reviewed

    Norihiro Oshime, Kenji Ohwada, Kento Sugawara, Tomohiro Abe, Reiji Yamauchi, Tetsuro Ueno, Akihiko Machida, Tetsu Watanuki, Shintaro UENO, Ichiro FUJII, Satoshi Wada, Ryota Sato, Toshiharu Teranishi, Miho Yamauchi, Kenji Ishii, Hidenori Toyokawa, Koichi Momma, Yoshihiro Kuroiwa

    Japanese Journal of Applied Physics   60 ( SF )   SFFA07   2021.7

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    DOI： 10.35848/1347-4065/ac148b

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  • Morphology-Dependent Coherent Acoustic Phonon Vibrations and Phonon Beat of Au Nanopolyhedrons Reviewed

    Li Wang, Shohei Takeda, Ryota Sato, Masanori Sakamoto, Toshiharu Teranishi, Naoto Tamai

    ACS Omega   6 ( 8 )   5485 - 5489   2021.3

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    DOI： 10.1021/acsomega.0c05806

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  • Transformations of Ionic Nanocrystals via Full and Partial Ion Exchange Reactions Invited Reviewed

    Masaki Saruyama, Ryota Sato, Toshiharu Teranishi

    Accounts of Chemical Research   54 ( 4 )   765 - 775   2021.2

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    DOI： 10.1021/acs.accounts.0c00701

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  • Interference effects in high-order harmonics from colloidal perovskite nanocrystals excited by an elliptically polarized laser Reviewed

    Kotaro Nakagawa, Hideki Hirori, Yasuyuki Sanari, Fumiya Sekiguchi, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Physical Review Materials   5 ( 1 )   016001-1 - 016001-6   2021.1

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    DOI： 10.1103/physrevmaterials.5.016001

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  • Disulfide-bridged dimeric cobalt porphyrin: synthesis and electrocatalytic properties for oxygen reduction in acid media Reviewed

    Huidong Jin, Yindong Gu, Yuebin Lian, Songlin Xue, Yuanyuan Fang, Zhao Deng, Masanori Sakamoto, Toshiharu Teranishi, Yang Peng

    Chinese Journal of Inorganic Chemistry   36 ( 12 )   2377 - 2384   2020.12

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  • Cation Distribution in Monodispersed MFe2O4 (M = Mn, Fe, Co, Ni, and Zn) Nanoparticles Investigated by X-ray Absorption Fine Structure Spectroscopy: Implications for Magnetic Data Storage, Catalysts, Sensors, and Ferrofluids. Reviewed

    Masafumi Harada, Masako Kuwa, Ryota Sato, Toshiharu Teranishi, Mari Takahashi, Shinya Maenosono

    ACS Applied Nano Materials   2020.7

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    DOI： 10.1021/acsanm.0c01810

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  • Core–Shell CsPbBr3@CdS Quantum Dots with Enhanced Stability and Photoluminescence Quantum Yields for Optoelectronic Devices Reviewed

    Jindou Shi, Wanyin Ge, Jianfeng Zhu, Masaki Saruyama, Toshiharu Teranishi

    ACS Applied Nano Materials   3 ( 8 )   7563 - 7571   2020.7

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    DOI： 10.1021/acsanm.0c01204

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  • Number of Surface-Attached Acceptors on a Quantum Dot Impacts Energy Transfer and Photon Upconversion Efficiencies Reviewed

    Jie Zhang, Hironori Kouno, Nobuhiro Yanai, Daichi Eguchi, Tatsuo Nakagawa, Nobuo Kimizuka, Toshiharu Teranishi, Masanori Sakamoto

    ACS Photonics   7 ( 7 )   1876 - 1884   2020.7

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    DOI： 10.1021/acsphotonics.0c00771

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  • Effect of A-Site Cation on Photoluminescence Spectra of Single Lead Bromide Perovskite Nanocrystals. Reviewed International journal

    Sojiro Masada, Takumi Yamada, Hirokazu Tahara, Hideki Hirori, Masaki Saruyama, Tokuhisa Kawawaki, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Nano letters   20 ( 5 )   4022 - 4028   2020.5

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    Lead halide perovskite (APbX3) nanocrystals exhibit photoluminescence (PL) with both wide wavelength tunability and high quantum efficiency. While the Pb-X6 octahedra mainly determines the near-band-edge optical properties and the A-site cation affects the structural stability, the role of the A-site cation in determining the optical properties is still unclear. Here, we report the PL properties of three types of lead bromide perovskite APbBr3 nanocrystals with different cations [A = HC(NH2)2+, CH3NH3+, and Cs+], as revealed by single-dot spectroscopy, and discuss the influence of the A-site cation on the PL spectrum. The nanocrystal size dependences of the PL energy and lifetime show no large variation with the species of the A-site cation. We find that the size of the A-site cation determines the coupling strength between electrons and longitudinal-optical phonons in the nanocrystal and thus affects the PL spectral shape, especially the low-energy tail.

    DOI： 10.1021/acs.nanolett.0c01417

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  • Reduction of Optical Gain Threshold in CsPbI3 Nanocrystals Achieved by Generation of Asymmetric Hot-Biexcitons. Reviewed International journal

    Etsuki Kobiyama, Hirokazu Tahara, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu

    Nano letters   20 ( 5 )   3905 - 3910   2020.5

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    Lead halide perovskite nanocrystals (NCs) are a class of promising light-emitting materials and have been considered as gain media in lasers. Strong exciton-exciton interactions in NCs cause an energy shift of the lowest optical transition and affect the optical gain threshold. Here, we clarify the dynamics of exciton-exciton interactions in highly photoexcited CsPbI3 NCs by double-pump transient absorption spectroscopy. This method provides control over the population of each excited state by varying the time interval between the two pump pulses. We find that the band-edge energy shift induced by the formation of asymmetric hot-biexcitons (comprising one ground-state exciton and one hot exciton) is smaller than that induced by hot excitons and hot biexcitons in the ensemble. We demonstrate that the generation of asymmetric hot-biexcitons reduces the optical gain threshold in the CsPbI3 NC ensemble.

    DOI： 10.1021/acs.nanolett.0c01079

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  • Ligand-Stabilized CoO and NiO Nanoparticles for Spintronic Devices with Antiferromagnetic Insulators Reviewed

    Masako Kuwa, Masafumi Harada, Ryota Sato, Toshiharu Teranishi

    ACS Applied Nano Materials   3 ( 3 )   2745 - 2755   2020.3

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    DOI： 10.1021/acsanm.0c00092

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  • Hard X-ray excited optical luminescence from protein-directed Au∼20 clusters Reviewed

    Zuoyue Liu, Kyung Oh Jung, Ryo Takahata, Masanori Sakamoto, Toshiharu Teranishi, Mamoru Fujitsuka, Guillem Pratx, Yasuko Osakada

    RSC Advances   10 ( 23 )   13824 - 13829   2020

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    <p>We investigated the luminescence properties of protein-directed Au∼20 clusters upon hard X-ray irradiation, demonstrating the further possible application toward nanomaterial based bio-imaging and diagnostics.</p>

    DOI： 10.1039/d0ra01935f

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  • Self-activated Rh–Zr mixed oxide as a nonhazardous cocatalyst for photocatalytic hydrogen evolution Reviewed

    Toshio Nishino, Masaki Saruyama, Zhanzhao Li, Yoshie Nagatsuma, Mamiko Nakabayashi, Naoya Shibata, Taro Yamada, Ryo Takahata, Seiji Yamazoe, Takashi Hisatomi, Kazunari Domen, Toshiharu Teranishi

    Chemical Science   11 ( 26 )   6862 - 6867   2020

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    <p>An efficient, robust and environmentally friendly Rh–Zr mixed oxide formed though the activation of Rh–Cl–Zr–O solid efficiently functions as a HER cocatalyst on Al-doped SrTiO3.</p>

    DOI： 10.1039/d0sc01363c

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  • Phase segregated Cu2−xSe/Ni3Se4 bimetallic selenide nanocrystals formed through the cation exchange reaction for active water oxidation precatalysts Reviewed

    Sungwon Kim, Hiroki Mizuno, Masaki Saruyama, Masanori Sakamoto, Mitsutaka Haruta, Hiroki Kurata, Taro Yamada, Kazunari Domen, Toshiharu Teranishi

    Chemical Science   11 ( 6 )   1523 - 1530   2020

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    <p>Bimetallic selenide nanocrystals formed by cation exchange reaction work as a precursor of efficient water oxidation electrocatalyst.</p>

    DOI： 10.1039/c9sc04371c

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  • Hot Carrier Chemistry

    Toshiharu Teranishi

    ChemNanoMat   5 ( 8 )   976   2019.8

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    DOI： 10.1002/cnma.201900409

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  • Anomalous Photoinduced Hole Transport in Type I Core/Mesoporous-Shell Nanocrystals for Efficient Photocatalytic H2 Evolution. Reviewed International journal

    Zichao Lian, Masanori Sakamoto, Yoichi Kobayashi, Naoto Tamai, Jun Ma, Tsuneaki Sakurai, Shu Seki, Tatsuo Nakagawa, Ming-Wei Lai, Mitsutaka Haruta, Hiroki Kurata, Toshiharu Teranishi

    ACS Nano   13 ( 7 )   8356 - 8363   2019.7

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    Controlling the carrier dynamics in a semiconductor nanoparticulate photocatalyst is the key to developing catalytic activity. Generally, type I band alignment is unsuitable for photocatalysts because the photoinduced carriers accumulate in the narrow bandgap semiconductor. To avoid the termination of reactions and/or photocorrosion of materials caused by carrier accumulation, it is common to employ type II band alignment for photoenergy conversion systems instead of type I. However, CdS/ZnS core/mesoporous-shell heterostructures show superior photocatalytic activity despite having type I band alignment that is generally unfavorable for photocatalytic reactions. Transient absorption spectroscopy and time-resolved microwave conductivity revealed efficient photoinduced hole transfer from the CdS phase to the ZnS phase. The defect-mediated hole transfer from the CdS to the ZnS phase resulted in long-lived charge separation (>2.4 ms) leading to high photocatalytic performance. This study provides insight into defect-mediated carrier transfer in nanoparticulate photocatalysts, which could be used as a guideline for the design of highly active and stable nanoparticulate photocatalysts.

    DOI： 10.1021/acsnano.9b03826

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  • Nanoparticle Approach to the Formation of Sm2Fe17N3 Hard Magnetic Particles Reviewed

    Kim, J, Wu, H.-L, Hsu, S, Matsumoto, K, Sato, R, Teranishi, T

    Chemistry Letters   48   1054 - 1057   2019.6

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  • Impact of Orbital Hybridization at Molecular-Metal Interface on Carrier Dynamics Reviewed

    Sakamoto, M, Kim, H.-D, Eguchi D, Chang, I.-Y, Tanaka, D, Tahara, H, Furube, A, Minagawa, Y, Majima, Y, Kanemitsu, Y, Teranishi, T

    The Journal of Physical Chemistry C   123   25877 - 25882   2019.6

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  • Formation of Strong L10-FePd/α-Fe Nanocomposite Magnets by Visualizing Efficient Exchange Coupling Reviewed

    Matsumoto, K, Sato, R, Trinh, T. T, Sakuma, N, Shoji, T, Haruta, M, Kurata, H, Teranishi, T

    Nanoscale Advances   1 ( 7 )   2598 - 2605   2019.5

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    <p>FORC analysis distinguished a microscopically undetectable difference in phase-segregation structure in nanocomposite magnets, finding both efficient and inefficient exchange coupling.</p>

    DOI： 10.1039/c9na00225a

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  • Robust Pt-based Nanogap Electrodes with 10-nm-scale Ultrafine Linewidth Reviewed

    Choi, Y. Y, Teranishi, T, Majima Y

    Applied Physics Express   12 ( 2 )   025002-1 - 025002-5   2019.1

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    DOI： 10.7567/1882-0786/aafb20

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  • Clear and transparent nanocrystals for infrared-responsive carrier transfer Reviewed

    Sakamoto, M., Kawawaki, T., Kimura, M., Vequizo, J.J.M., Matsunaga, H., Ranasinghe, C.S.K., Yamakata, A., Matsuzaki, H., Furube, A., Teranishi, T.

    Nature communications   10 ( 1 )   406 - 406   2019

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    DOI： 10.1038/s41467-018-08226-2

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  • Carrier-Selective Blocking Layer Synergistically Improves the Plasmonic Enhancement Effect Reviewed

    Kawawaki, T., Nakagawa, T., Sakamoto, M., Teranishi, T.

    Journal of the American Chemical Society   141 ( 21 )   8402 - 8406   2019

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    DOI： 10.1021/jacs.9b01419

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  • Ionization and Neutralization Dynamics of CsPbBr<inf>3</inf> Perovskite Nanocrystals Revealed by Double-Pump Transient Absorption Spectroscopy Reviewed

    Nakahara, S., Ohara, K., Tahara, H., Yumoto, G., Kawawaki, T., Saruyama, M., Sato, R., Teranishi, T., Kanemitsu, Y.

    Journal of Physical Chemistry Letters   10 ( 16 )   4731 - 4736   2019

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    DOI： 10.1021/acs.jpclett.9b01554

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  • Near infrared light induced plasmonic hot hole transfer at a nano-heterointerface Reviewed

    Zichao Lian, Masanori Sakamoto, Hironori Matsunaga, Junie Jhon M. Vequizo, Akira Yamakata, Mitsutaka Haruta, Hiroki Kurata, Wataru Ota, Tohru Sato, Toshiharu Teranishi

    Nature Communications   9 ( 1 )   2314-1 - 2314-7   2018.12

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    DOI： 10.1038/s41467-018-04630-w

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  • Plasmonic p-n Junction for Infrared Light to Chemical Energy Conversion Reviewed

    Lian, Z, Sakamoto, M, Vequizo, J. J. M, Ranasinghe, C. S. K, Yamakata, A, Nagai, T, Kimoto, K, Kobayashi, Y, Tamai, N, Teranishi T

    Journal of the American Chemical Society   141 ( 6 )   2446 - 2450   2018.12

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    DOI： 10.1021/jacs.8b11544

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  • Quantum Coherence of Multiple Excitons Governs Absorption Cross-Sections of PbS/CdS Core/Shell Nanocrystals Reviewed

    Tahara, H, Sakamoto, M, Teranishi, T, Kanemitsu Y

    Nature Communications   9   3179-1 - 3179-8   2018.8

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    DOI： 10.1038/s41467-018-05698-0

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  • Boosting photocatalytic overall water splitting by Co doping into Mn3O4 nanoparticles as oxygen evolution cocatalysts Reviewed

    Taizo Yoshinaga, Masaki Saruyama, Anke Xiong, Yeilin Ham, Yongbo Kuang, Ryo Niishiro, Seiji Akiyama, Masanori Sakamoto, Takashi Hisatomi, Kazunari Domen, Toshiharu Teranishi

    Nanoscale   10 ( 22 )   10420 - 10427   2018.6

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    DOI： 10.1039/c8nr00377g

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  • Numerical and experimental investigations of dependence of photoacoustic signals from gold nanoparticles on the optical properties Reviewed

    Shinpei Okawa, Takeshi Hirasawa, Ryota Sato, Toshihiro Kushibiki, Miya Ishihara, Toshiharu Teranishi

    Optical Review   25 ( 3 )   365 - 374   2018.6

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    DOI： 10.1007/s10043-018-0435-2

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  • Durian-Shaped CdS@ZnSe Core@Mesoporous-Shell Nanoparticles for Enhanced and Sustainable Photocatalytic Hydrogen Evolution Reviewed

    Zichao Lian, Masanori Sakamoto, Yoichi Kobayashi, Naoto Tamai, Jun Ma, Tsuneaki Sakurai, Shu Seki, Tatsuo Nakagawa, Mingwei Lai, Mitsutaka Haruta, Hiroki Kurata, Toshiharu Teranishi

    Journal of Physical Chemistry Letters   9 ( 9 )   2212 - 2217   2018.5

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    DOI： 10.1021/acs.jpclett.8b00789

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  • Phase-segregated NiPx@FePyOz core@shell nanoparticles: Ready-to-use nanocatalysts for electro- and photo-catalytic water oxidation through in situ activation by structural transformation and spontaneous ligand removal Reviewed

    Masaki Saruyama, Sunwon Kim, Toshio Nishino, Masanori Sakamoto, Mitsutaka Haruta, Hiroki Kurata, Seiji Akiyama, Taro Yamada, Kazunari Domen, Toshiharu Teranishi

    Chemical Science   9 ( 21 )   4830 - 4836   2018

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    DOI： 10.1039/c8sc00420j

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  • Suppression of Trion Formation in CsPbBr<inf>3</inf> Perovskite Nanocrystals by Postsynthetic Surface Modification Reviewed

    Nakahara, S., Tahara, H., Yumoto, G., Kawawaki, T., Saruyama, M., Sato, R., Teranishi, T., Kanemitsu, Y.

    Journal of Physical Chemistry C   122 ( 38 )   22188 - 22193   2018

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    DOI： 10.1021/acs.jpcc.8b06834

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  • Observation of positive and negative trions in organic-inorganic hybrid perovskite nanocrystals Reviewed

    Yarita, N., Aharen, T., Tahara, H., Saruyama, M., Kawawaki, T., Sato, R., Teranishi, T., Kanemitsu, Y.

    Physical Review Materials   2 ( 11 )   116003-1 - 116003-8   2018

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    DOI： 10.1103/PhysRevMaterials.2.116003

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  • Hot Biexciton Effect on Optical Gain in CsPbI<inf>3</inf> Perovskite Nanocrystals Reviewed

    Yumoto, G., Tahara, H., Kawawaki, T., Saruyama, M., Sato, R., Teranishi, T., Kanemitsu, Y.

    Journal of Physical Chemistry Letters   9 ( 9 )   2222 - 2228   2018

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    DOI： 10.1021/acs.jpclett.8b01029

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  • Harmonic Quantum Coherence of Multiple Excitons in PbS/CdS Core-Shell Nanocrystals Reviewed

    Hirokazu Tahara, Masanori Sakamoto, Toshiharu Teranishi, Yoshihiko Kanemitsu

    PHYSICAL REVIEW LETTERS   119 ( 24 )   247401-1 - 247401-6   2017.12

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    DOI： 10.1103/PhysRevLett.119.247401

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  • Formation of Layer-by-Layer Assembled Cocatalyst Films of S2--Stabilized Ni3S4 Nanoparticles for Hydrogen Evolution Reaction Reviewed

    Sungwon Kim, Toshio Nishino, Masaki Saruyama, Masanori Sakamoto, Hiroyuki Kobayashi, Seiji Akiyama, Taro Yamada, Kazunari Domen, Toshiharu Teranishi

    CHEMNANOMAT   3 ( 10 )   764 - 771   2017.10

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    DOI： 10.1002/cnma.201700220

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  • Front Cover: Formation of Layer-by-Layer Assembled Cocatalyst Films of S2−-Stabilized Ni3S4 Nanoparticles for Hydrogen Evolution Reaction (ChemNanoMat 10/2017) Reviewed

    Sungwon Kim, Toshio Nishino, Masaki Saruyama, Masanori Sakamoto, Hiroyuki Kobayashi, Seiji Akiyama, Taro Yamada, Kazunari Domen, Toshiharu Teranishi

    ChemNanoMat   3 ( 10 )   665   2017.9

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    DOI： 10.1002/cnma.201700273

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  • Molecular floating-gate single-electron transistor Reviewed

    Makoto Yamamoto, Yasuo Azuma, Masanori Sakamoto, Toshiharu Teranishi, Hisao Ishii, Yutaka Majima, Yutaka Noguchi

    SCIENTIFIC REPORTS   7   1589-1 - 1589-7   2017.5

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    DOI： 10.1038/s41598-017-01578-7

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  • Three-input gate logic circuits on chemically assembled single-electron transistors with organic and inorganic hybrid passivation layers Reviewed

    Yutaka Majima, Guillaume Hackenberger, Yasuo Azuma, Shinya Kano, Kosuke Matsuzaki, Tomofumi Susaki, Masanori Sakamoto, Toshiharu Teranishi

    SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS   18 ( 1 )   374 - 380   2017.5

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    DOI： 10.1080/14686996.2017.1320190

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  • 光超音波イメージングの新展開 イメージングプローブを用いた光音響画像の新展開

    石原 美弥, 浦野 泰照, 寺西 利治

    超音波医学   44 ( Suppl. )   S187 - S187   2017.4

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  • Coulomb-Enhanced Radiative Recombination of Biexcitons in Single Giant-Shell CdSe/CdS Core/Shell Nanocrystals Reviewed

    Hiroshige N, Ihara T, Saruyama M, Teranishi T, Kanemitsu Y

    The Journal of Physical Chemistry Letters   8   1961 - 1966   2017.4

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    DOI： 10.1021/acs.jpclett.7b00326

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  • Coulomb blockade and Coulomb staircase behavior observed at room temperature Reviewed

    Pipit Uky Vivitasari, Yasuo Azuma, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima

    MATERIALS RESEARCH EXPRESS   4 ( 2 )   024004-1 - 024004-5   2017.2

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    DOI： 10.1088/2053-1591/aa5bb3

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  • Monodisperse and size-tunable PbS colloidal quantum dots via heterogeneous precursors Reviewed

    Samuel Chan, Maning Liu, Kay Latham, Mitsutaka Haruta, Hiroki Kurata, Toshiharu Teranishi, Yasuhiro Tachibana

    JOURNAL OF MATERIALS CHEMISTRY C   5 ( 8 )   2182 - 2187   2017.2

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    DOI： 10.1039/c6tc05329g

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  • Dynamics of Charged Excitons and Biexcitons in CsPbBr<inf>3</inf> Perovskite Nanocrystals Revealed by Femtosecond Transient-Absorption and Single-Dot Luminescence Spectroscopy Reviewed

    Yarita, N., Tahara, H., Ihara, T., Kawawaki, T., Sato, R., Saruyama, M., Teranishi, T., Kanemitsu, Y.

    Journal of Physical Chemistry Letters   8 ( 7 )   1413 - 1418   2017

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    DOI： 10.1021/acs.jpclett.7b00326

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  • Impact of Postsynthetic Surface Modification on Photoluminescence Intermittency in Formamidinium Lead Bromide Perovskite Nanocrystals Reviewed

    Yarita, N., Tahara, H., Saruyama, M., Kawawaki, T., Sato, R., Teranishi, T., Kanemitsu, Y.

    Journal of Physical Chemistry Letters   8 ( 24 )   6041 - 6047   2017

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    DOI： 10.1021/acs.jpclett.7b02840

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  • Ligand effect on the catalytic activity of porphyrin-protected gold clusters in the electrochemical hydrogen evolution reaction Reviewed

    Daichi Eguchi, Masanori Sakamoto, Toshiharu Teranishi

    Chemical Science   9 ( 1 )   261 - 265   2017

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    DOI： 10.1039/c7sc03997b

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  • Porphyrin Derivative-Protected Gold Cluster with a Pseudotetrahedral Shape Reviewed

    Eguchi D, Sakamoto M, Tanaka D, Okamoto Y, Teranishi T

    The Journal of Physical Chemistry C   121 ( 20 )   10760 - 10766   2016.12

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  • Memory operations in Au nanoparticle single-electron transistors with floating gate electrodes Reviewed

    Yasuo Azuma, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima

    APPLIED PHYSICS LETTERS   109 ( 22 )   223106-1 - 223106-5   2016.11

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    DOI： 10.1063/1.4971190

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  • Tin Ion Directed Morphology Evolution of Copper Sulfide Nanoparticles and Tuning of Their Plasmonic Properties via Phase Conversion Reviewed

    Lihui Chen, Masanori Sakamoto, Mitsutaka Haruta, Takashi Nemoto, Ryota Sato, Hiroki Kurata, Toshiharu Teranishi

    LANGMUIR   32 ( 30 )   7582 - 7587   2016.8

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    DOI： 10.1021/acs.langmuir.6b02035

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  • Formation of pseudomorphic nanocages from Cu2O nanocrystals through anion exchange reactions Reviewed

    Hsin-Lun Wu, Ryota Sato, Atsushi Yamaguchi, Masato Kimura, Mitsutaka Haruta, Hiroki Kurata, Toshiharu Teranishi

    SCIENCE   351 ( 6279 )   1306 - 1310   2016.3

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    DOI： 10.1126/science.aad5520

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  • Direct Observation of Multiphoton Emission Enhancement from a Single Quantum Dot Using AFM Manipulation of a Cubic Gold Nanoparticle Reviewed

    Sadahiro Masuo, Keisuke Kanetaka, Ryota Sato, Toshiharu Teranishi

    ACS PHOTONICS   3 ( 1 )   109 - 116   2016.1

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    DOI： 10.1021/acsphotonics.5b00496

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  • Effects of the optical properties of gold nanoparticles on photoacoustic signals Reviewed

    S. Okawa, T. Hirasawa, R. Sato, T. Kushibiki, M. Ishihara, T. Teranishi

    Progress in Biomedical Optics and Imaging - Proceedings of SPIE   9708   2016

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    DOI： 10.1117/12.2213879

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  • Rhombic Coulomb diamonds in a single-electron transistor based on an Au nanoparticle chemically anchored at both ends Reviewed

    Yasuo Azuma, Yuto Onuma, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima

    NANOSCALE   8 ( 8 )   4720 - 4726   2016

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    DOI： 10.1039/c5nr08965d

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  • Light-stimulated carrier dynamics of CuInS2/CdS heterotetrapod nanocrystals Reviewed

    Masanori Sakamoto, Koki Inoue, Makoto Okano, Masaki Saruyama, Sungwon Kim, Yeong-Gi So, Koji Kimoto, Yoshihiko Kanemitsu, Toshiharu Teranishi

    NANOSCALE   8 ( 18 )   9517 - 9520   2016

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    DOI： 10.1039/c6nr01097k

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  • One-step and two-step generation mechanisms of multiple excitons in PbS quantum dots

    Tahara Hirokazu, Sakamoto Masanori, Teranishi Toshiharu, Kanemitsu Yoshihiko

    Meeting Abstracts of the Physical Society of Japan   71   1324 - 1324   2016

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    DOI： 10.11316/jpsgaiyo.71.2.0_1324

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  • Photoabsorption of single CdSe/CdS dot-in-rods studied by photoluminescence-excitation spectroscopy

    Ihara Toshiyuki, Sato Ryota, Teranishi Toshiharu, Kanemitsu Yoshihiko

    Meeting Abstracts of the Physical Society of Japan   71   1295 - 1295   2016

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  • Effects of the optical properties of gold nanoparticls on photoacoustic signals Reviewed

    S. Okawa, T. Hirasawa, R. Sato, T. Kushibiki, M. Ishihara, T. Teranishi

    PHOTONS PLUS ULTRASOUND: IMAGING AND SENSING 2016   9708   2016

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    DOI： 10.1117/12.2213879

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  • Synthesis and magnetism of hierarchical iron oxide particles Reviewed

    Nguyen Viet Long, Yong Yang, Toshiharu Teranishi, Cao Minh Thi, Yanqin Cao, Masayuki Nogami

    MATERIALS & DESIGN   86   797 - 808   2015.12

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    DOI： 10.1016/j.matdes.2015.07.157

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  • Biomedical Applications of Advanced Multifunctional Magnetic Nanoparticles Reviewed

    Nguyen Viet Long, Yong Yang, Toshiharu Teranishi, Cao Minh Thi, Yanqin Cao, Masayuki Nogami

    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY   15 ( 12 )   10091 - 10107   2015.12

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    DOI： 10.1166/jnn.2015.11691

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  • Chemically assembled double-dot single-electron transistor analyzed by the orthodox model considering offset charge Reviewed

    Shinya Kano, Kosuke Maeda, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima

    Journal of Applied Physics   118 ( 13 )   134304   2015.10

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    DOI： 10.1063/1.4931611

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  • Double-Dot Single-Electron Transistors: Extended Orthodox Model Considering Fractional Residual Charges Reviewed

    Kano S, Maeda K, Tanaka D, Sakamoto M, Teranishi T, Majima Y

    Journal of Applied Physics   118   134304-1 - 134304-6   2015.10

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  • Simple Surfactant Concentration-Dependent Shape Control of Polyhedral Fe3O4 Nanoparticles and Their Magnetic Properties Reviewed

    Wanyin Ge, Ryota Sato, Hsin-Lun Wu, Toshiharu Teranishi

    CHEMPHYSCHEM   16 ( 15 )   3200 - 3205   2015.10

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  • Radio-frequency capacitance spectroscopy of metallic nanoparticles Reviewed

    James C. Frake, Shinya Kano, Chiara Ciccarelli, Jonathan Griffiths, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima, Charles G. Smith, Mark R. Buitelaar

    SCIENTIFIC REPORTS   5   10858   2015.6

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  • Photoinduced Carrier Dynamics of Nearly Stoichiometric Oleylamine-Protected Copper Indium Sulfide Nanoparticles and Nanodisks Reviewed

    Masanori Sakamoto, Lihui Chen, Makoto Okano, David M. Tex, Yoshihiko Kanemitsu, Toshiharu Teranishi

    JOURNAL OF PHYSICAL CHEMISTRY C   119 ( 20 )   11100 - 11105   2015.5

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    DOI： 10.1021/jp511864p

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  • Control of charging energy in chemically assembled nanoparticle single-electron transistors Reviewed

    Shinya Kano, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima

    NANOTECHNOLOGY   26 ( 4 )   045702   2015.1

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  • Origin of surface trap states in CdS quantum dots: relationship between size dependent photoluminescence and sulfur vacancy trap states Reviewed

    Aisea Veamatahau, Bo Jiang, Tom Seifert, Satoshi Makuta, Kay Latham, Masayuki Kanehara, Toshiharu Teranishi, Yasuhiro Tachibana

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   17 ( 4 )   2850 - 2858   2015.1

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  • Gap separation-controlled nanogap electrodes by molecular ruler electroless gold plating Reviewed

    Victor M. V. Serdio, Taro Muraki, Shuhei Takeshita, Daniel E. S. Hurtado, Shinya Kano, Toshiharu Teranishi, Yutaka Majima

    RSC ADVANCES   5 ( 28 )   22160 - 22167   2015

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    DOI： 10.1039/c5ra00923e

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  • Related magnetic properties of CoFe2O4 cobalt ferrite particles synthesised by the polyol method with NaBH4 and heat treatment: new micro and nanoscale structures Reviewed

    Nguyen Viet Long, Yong Yang, Toshiharu Teranishi, Cao Minh Thi, Yanqin Cao, Masayuki Nogami

    RSC ADVANCES   5 ( 70 )   56560 - 56569   2015

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    DOI： 10.1039/c5ra10015a

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  • Determination of a localized surface plasmon resonance mode of Cu7S4 nanodisks by plasmon coupling Reviewed

    L. Chen, M. Sakamoto, R. Sato, T. Teranishi

    FARADAY DISCUSSIONS   181   355 - 364   2015

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  • New routes to control nanoparticle synthesis: general discussion Reviewed

    Javier Reguera, Leonardo Scarabelli, Christophe Petit, Raghavender Siramdas, Heiko Wolf, Munish Chanana, Xiaoying Liu, Matthew Martin, Moritz Tebbe, Xiao-Min Lin, Lucio Isa, Helmuth Moehwald, Peter Schurtenberger, Orlin Velev, Yangwei Liu, Abdel Rahman Abdel Fattah, Ali Bumajdad, Dhanavel Ganeshan, Damien Faivre, Fernando Bresme, Christopher Sorensen, Pablo Guimera Coll, Suvojit Ghosh, Andreas Fery, Fadwa El Haddassi, K. Michael Salerno, Christina Graf, M. Fernanda Cardinal, David Schiffrin, Zhihai Li, Elena Shevchenko, Toshiharu Teranishi, Zhang Shubiao, Dmitri Talapin, A. Paul Alivisatos, Etienne Duguet, Albert Philipse, Emanuela Bianchi, Roman Latsuzbaia

    FARADAY DISCUSSIONS   181   147 - 179   2015

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  • Properties of self-assembled nanostructures: general discussion Reviewed

    Javier Reguera, Edward Malachosky, Matthew Martin, Moritz Tebbe, Bruce Law, Lucio Isa, Helmuth Moehwald, Yangwei Liu, Fernando Bresme, Dhanavel Ganeshan, Christopher Sorensen, Suvojit Ghosh, Andreas Fery, Petr Kral, Asaph Widmer-Cooper, Christina Graf, Almudena Gallego, David Schiffrin, Brian Korgel, Gunadhor Okram, Subramanian Sankaranarayanan, Yifan Wang, Toshiharu Teranishi, K. Michael Salerno, Sean McBride, Xiao-Min Lin

    FARADAY DISCUSSIONS   181   365 - 381   2015

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  • Visible to near-infrared plasmon-enhanced catalytic activity of Pd hexagonal nanoplates for the Suzuki coupling reaction Reviewed

    T. Thuy Trinh, Ryota Sato, Masanori Sakamoto, Yoshifumi Fujiyoshi, Mitsutaka Haruta, Hiroki Kurata, Toshiharu Teranishi

    NANOSCALE   7 ( 29 )   12435 - 12444   2015

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  • Assessment of Hot-Carrier Effects on Charge Separation in Type-II CdS/CdTe Heterostructured Nanorods Reviewed

    Makoto Okano, Masanori Sakamoto, Toshiharu Teranishi, Yoshihiko Kanemitsu

    JOURNAL OF PHYSICAL CHEMISTRY LETTERS   5 ( 17 )   2951 - 2956   2014.9

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  • Multispectral analysis of photoacoustic signal for improvement in identification accuracy of imaging probe Reviewed

    Miya Ishihara, Yasuteru Urano, Toshiharu Teranishi

    Transactions of Japanese Society for Medical and Biological Engineering   52   67   2014.8

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    DOI： 10.11239/jsmbe.52.SY-67

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  • Delocalized and localized charged excitons in single CdSe/CdS dot-in-rods revealed by polarized photoluminescence blinking Reviewed

    Toshiyuki Ihara, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

    PHYSICAL REVIEW B   90 ( 3 )   035309   2014.7

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    DOI： 10.1103/PhysRevB.90.035309

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  • Effect of Hydrogen and Oxygen Evolution Cocatalysts on Photocatalytic Activity of GaN:ZnO Reviewed

    Anke Xiong, Taizo Yoshinaga, Takahiro Ikeda, Masaki Takashima, Takashi Hisatomi, Kazuhiko Maeda, Toru Setoyama, Toshiharu Teranishi, Kazunari Domen

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   ( 4 )   767 - 772   2014.2

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    DOI： 10.1002/ejic.201300439

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  • Strongest pi-metal orbital coupling in a porphyrin/gold cluster system Reviewed

    Daisuke Tanaka, Yoko Inuta, Masanori Sakamoto, Akihiro Furube, Mitsutaka Haruta, Yeong-Gi So, Koji Kimoto, Ikutaro Hamada, Toshiharu Teranishi

    CHEMICAL SCIENCE   5 ( 5 )   2007 - 2010   2014

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  • Investigation on photo-induced charge separation in CdS/CdTe nanopencils Reviewed

    Masanori Sakamoto, Koki Inoue, Masaki Saruyama, Yeong-Gi So, Koji Kimoto, Makoto Okano, Yoshihiko Kanemitsu, Toshiharu Teranishi

    CHEMICAL SCIENCE   5 ( 10 )   3831 - 3835   2014

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    DOI： 10.1039/c4sc00635f

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  • The effect of surface charge of plasmonic gold nanoparticles on photoacoustic signal Reviewed

    Miya Ishihara, Takeshi Hirasawa, Shinpei Okawa, Ryota Sato, Yasuteru Urano, Toshiharu Teranishi

    Progress in Biomedical Optics and Imaging - Proceedings of SPIE   8943   2014

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    DOI： 10.1117/12.2041456

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  • Hard X-ray-induced optical luminescence via biomolecule-directed metal clusters Reviewed

    Yasuko Osakada, Guillem Pratx, Conroy Sun, Masanori Sakamoto, Moiz Ahmad, Olga Volotskova, Qunxiang Ong, Toshiharu Teranishi, Yoshie Harada, Lei Xing, Bianxiao Cui

    CHEMICAL COMMUNICATIONS   50 ( 27 )   3549 - 3551   2014

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  • The Effect of Surface Charge of Plasmonic Gold Nanoparticles on Photoacoustic Signal Reviewed

    M. Ishihara, T. Hirasawa, S. Okawa, R. Sato, Y. Urano, T. Teranishi

    Proceedings of SPIE   8943   89434D(1 - 6)   2014

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  • Random telegraph signals by alkanethiol-protected Au nanoparticles in chemically assembled single-electron transistors Reviewed

    Shinya Kano, Yasuo Azuma, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Luke W. Smith, Charles G. Smith, Yutaka Majima

    JOURNAL OF APPLIED PHYSICS   114 ( 22 )   2013.12

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    DOI： 10.1063/1.4847955

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  • Silicon-Nitride-Passivated Bottom-Up Single-Electron Transistors Reviewed

    Guillaume Hackenberger, Yasuo Azuma, Shinya Kano, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Yasuhide Ohno, Kenzo Maehashi, Kazuhiko Matsumoto, Yutaka Majima

    JAPANESE JOURNAL OF APPLIED PHYSICS   52 ( 11 )   2013.11

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    DOI： 10.7567/JJAP.52.110101

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  • Charge separation in type-II semiconductor heterodimers Reviewed

    Toshiharu Teranishi, Masanori Sakamoto

    Journal of Physical Chemistry Letters   4 ( 17 )   2867 - 2873   2013.9

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    DOI： 10.1021/jz4013504

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  • Photoacoustic signal enhancement by localized surface plasmon of gold nanoparticles Reviewed

    Miya Ishihara, Shinpei Okawa, Ryota Sato, Takeshi Hirasawa, Toshiharu Teranishi

    Proceedings of the International Conference Nanomaterials: Applications and Properties   2 ( 4 )   04NABM12-1 - 04NABM12-3   2013.8

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  • One-Pot Controllable Synthesis of Au@Ag Heterogeneous Nanorods with Highly Tunable Plasmonic Absorption Reviewed

    Cuncheng Li, Lin Sun, Yiqiang Sun, Toshiharu Teranishi

    CHEMISTRY OF MATERIALS   25 ( 13 )   2580 - 2590   2013.7

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    DOI： 10.1021/cm400392e

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  • Polyol synthesis of size-controlled Rh nanoparticles and their application to photocatalytic overall water splitting under visible light Reviewed

    Takahiro Ikeda, Anke Xiong, Taizo Yoshinaga, Kazuhiko Maeda, Kazunari Domen, Toshiharu Teranishi

    Journal of Physical Chemistry C   117 ( 6 )   2467 - 2473   2013.2

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    DOI： 10.1021/jp305968u

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  • Rigid bidentate ligands focus the size of gold nanoparticles Reviewed

    Masanori Sakamoto, Daisuke Tanaka, Toshiharu Teranishi

    CHEMICAL SCIENCE   4 ( 2 )   824 - 828   2013

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    DOI： 10.1039/c2sc21560h

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  • Ultrafast dynamics and single particle spectroscopy of Au-CdSe nanorods Reviewed

    Gabriel Sagarzazu, Kohki Inoue, Masaki Saruyama, Masanori Sakamoto, Toshiharu Teranishi, Sadahiro Masuo, Naoto Tamai

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   15 ( 6 )   2141 - 2152   2013

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    DOI： 10.1039/c2cp43458j

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  • Crystal structure-selective formation and carrier dynamics of type-II CdS-Cu31S16 heterodimers Reviewed

    Toshiharu Teranishi, Daiki Inui, Taizo Yoshinaga, Masaki Saruyama, Masayuki Kanehara, Masanori Sakamoto, Akihiro Furube

    JOURNAL OF MATERIALS CHEMISTRY C   1 ( 21 )   3391 - 3394   2013

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    DOI： 10.1039/c3tc30465e

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  • Ideal Discrete Energy Levels in Synthesized Au Nanoparticles for Chemically Assembled Single-Electron Transistors Reviewed

    Shinya Kano, Yasuo Azuma, Kosuke Maeda, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Luke W. Smith, Charles G. Smith, Yutaka Majima

    ACS NANO   6 ( 11 )   9972 - 9977   2012.11

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    DOI： 10.1021/nn303585g

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  • Structural Tuning of Optical Antenna Properties for Plasmonic Enhancement of Photocurrent Generation on a Molecular Mono layer System Reviewed

    Katsuyoshi Ikeda, Kenji Takahashi, Takuya Masuda, Hiromu Kobori, Masayuki Kanehara, Toshiharu Teranishi, Kohei Uosaki

    JOURNAL OF PHYSICAL CHEMISTRY C   116 ( 39 )   20806 - 20811   2012.10

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    DOI： 10.1021/jp308290v

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  • Highly Dispersive Deposition of Pt Nanoparticles on CdS Nanostructures for Photocatalytic Hydrogen Evolution Reviewed

    Masanori Sakamoto, Anke Xiong, Ryo Kanakubo, Takahiro Ikeda, Taizo Yoshinaga, Kazuhiko Maeda, Kazunari Domen, Toshiharu Teranishi

    CHEMISTRY LETTERS   41 ( 10 )   1325 - 1327   2012.10

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    DOI： 10.1246/cl.2012.1325

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  • Covalent assembly of silver nanoparticles on hydrogen-terminated silicon surface Reviewed

    Om P. Khatri, Takashi Ichii, Kuniaki Murase, Masayuki Kanehara, Toshiharu Teranishi, Hiroyuki Sugimura

    JOURNAL OF COLLOID AND INTERFACE SCIENCE   382 ( 1 )   22 - 27   2012.9

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    DOI： 10.1016/j.jcis.2012.06.001

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  • Characterization of thiol-functionalized oligo(phenylene-ethynylene)-protected Au nanoparticles by scanning tunneling microscopy and spectroscopy Reviewed

    Hyunmo Koo, Shinya Kano, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Gyoujin Cho, Yutaka Majima

    APPLIED PHYSICS LETTERS   101 ( 8 )   2012.8

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    DOI： 10.1063/1.4747720

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  • Large-Scale Synthesis of High-Quality Metal Sulfide Semiconductor Quantum Dots with Tunable Surface-Plasmon Resonance Frequencies Reviewed

    Masayuki Kanehara, Hisamitsu Arakawa, Tetsuya Honda, Masaki Saruyama, Toshiharu Teranishi

    CHEMISTRY-A EUROPEAN JOURNAL   18 ( 30 )   9230 - 9238   2012.7

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    DOI： 10.1002/chem.201201159

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  • Simple Reductant Concentration-Dependent Shape Control of Polyhedral Gold Nanoparticles and Their Plasmonic Properties Reviewed

    Miharu Eguchi, Daisuke Mitsui, Hsin-Lun Wu, Ryota Sato, Toshiharu Teranishi

    LANGMUIR   28 ( 24 )   9021 - 9026   2012.6

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    DOI： 10.1021/la3002114

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  • Bottom-Up Assembly of Colloidal Gold and Silver Nanostructures for Designable Plasmonic Structures and Metamaterials Reviewed

    Shangjr Gwo, Meng-Hsien Lin, Chieh-Lun He, Hung-Ying Chen, Toshiharu Teranishi

    LANGMUIR   28 ( 24 )   8902 - 8908   2012.6

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    DOI： 10.1021/la300226r

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  • Coulomb blockade behaviors in individual Au nanoparticles as observed through noncontact atomic force spectroscopy at room temperature Reviewed

    Shigeki Hattori, Shinya Kano, Yasuo Azuma, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima

    NANOTECHNOLOGY   23 ( 18 )   185704   2012.5

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    DOI： 10.1088/0957-4484/23/18/185704

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  • Logic Operations of Chemically Assembled Single-Electron Transistor Reviewed

    Kosuke Maeda, Norio Okabayashi, Shinya Kano, Shuhei Takeshita, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima

    ACS NANO   6 ( 3 )   2798 - 2803   2012.3

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  • Platonic Hexahedron Composed of Six Organic Faces with an Inscribed Au Cluster Reviewed

    Masanori Sakamoto, Daisuke Tanaka, Hironori Tsunoyama, Tatsuya Tsukuda, Yoshihiro Minagawa, Yutaka Majima, Toshiharu Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   134 ( 2 )   816 - 819   2012.1

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    DOI： 10.1021/ja209634g

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  • Uniform charging energy of single-electron transistors by using size-controlled Au nanoparticles Reviewed

    Norio Okabayashi, Kosuke Maeda, Taro Muraki, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Yutaka Majima

    APPLIED PHYSICS LETTERS   100 ( 3 )   2012.1

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    DOI： 10.1063/1.3676191

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  • Robust nanogap electrodes by self-terminating electroless gold plating Reviewed

    Victor M. Serdio V, Yasuo Azuma, Shuhei Takeshita, Taro Muraki, Toshiharu Teranishi, Yutaka Majima

    NANOSCALE   4 ( 22 )   7161 - 7167   2012

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    DOI： 10.1039/c2nr32232c

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  • Electric-Field Enhancement Inducing Near-Infrared Two-Photon Absorption in an Indium-Tin Oxide Nanoparticle Film Reviewed

    Akihiro Furube, Taizo Yoshinaga, Masayuki Kanehara, Miharu Eguchi, Toshiharu Teranishi

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   51 ( 11 )   2640 - 2642   2012

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    DOI： 10.1002/anie.201107450

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  • Nanoplasmonics in inorganic nanoparticles Reviewed

    Toshiharu Teranishi

    IEEJ Transactions on Electronics, Information and Systems   132 ( 8 )   1251 - 1254   2012

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    DOI： 10.1541/ieejeiss.132.1251

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  • Electroconductive π-junction Au nanoparticles Reviewed

    Masayuki Kanehara, Jun Takeya, Takafumi Uemura, Hideyuki Murata, Kazuo Takimiya, Hikaru Sekine, Toshiharu Teranishi

    Bulletin of the Chemical Society of Japan   85 ( 9 )   957 - 961   2012

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    DOI： 10.1246/bcsj.20120103

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  • Spontaneous Formation of Wurzite-CdS/Zinc Blende-CdTe Heterodimers through a Partial Anion Exchange Reaction Reviewed

    Masaki Saruyama, Yeong-Gi So, Koji Kimoto, Seiji Taguchi, Yoshihiko Kanemitsu, Toshiharu Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   133 ( 44 )   17598 - 17601   2011.11

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    DOI： 10.1021/ja2078224

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  • Far-Field Optical Imaging of a Linear Array of Coupled Gold Nanocubes: Direct Visualization of Dark Plasmon Propagating Modes Reviewed

    Hung-Ying Chen, Chieh-Lun He, Chun-Yuan Wang, Meng-Hsien Lin, Daisuke Mitsui, Miharu Eguchi, Toshiharu Teranishi, Shangjr Gwo

    ACS NANO   5 ( 10 )   8223 - 8229   2011.10

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    DOI： 10.1021/nn2029007

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  • Far-Field Optical Imaging of a Linear Array of Coupled Gold Nanocubes: Direct Visualization of Dark Plasmon Propagating Modes Reviewed

    Hung-Ying Chen, Chieh-Lun He, Chun-Yuan Wang, Meng-Hsien Lin, Daisuke Mitsui, Miharu Eguchi, Toshiharu Teranishi, Shangjr Gwo

    ACS NANO   5 ( 10 )   8223 - 8229   2011.10

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  • Sensitization of TiO2 with Pt, Pd, and Au Clusters Protected by Mercapto- and Dimercaptosuccinic Acid Reviewed

    Nobuyuki Sakai, Takahiro Ikeda, Toshiharu Teranishi, Tetsu Tatsuma

    CHEMPHYSCHEM   12 ( 13 )   2414 - 2417   2011.9

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    DOI： 10.1002/cphc.201100223

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  • Nanoparticle single-electron transistor with metal-bridged top-gate and nanogap electrodes Reviewed

    Yasuo Azuma, Seiichi Suzuki, Kosuke Maeda, Norio Okabayashi, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Mark R. Buitelaar, Charles G. Smith, Yutaka Majima

    APPLIED PHYSICS LETTERS   99 ( 7 )   073109   2011.8

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  • Quantized Auger recombination of biexcitons in CdSe nanorods studied by time-resolved photoluminescence and transient-absorption spectroscopy Reviewed

    Seiji Taguchi, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu

    PHYSICAL REVIEW B   83 ( 15 )   2011.4

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    DOI： 10.1103/PhysRevB.83.155324

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  • Exchange Coupling Interaction in L1(0)-FePd/alpha-Fe Nanocomposite Magnets with Large Maximum Energy Products Reviewed

    Noritsugu Sakuma, Tsubasa Ohshima, Tetsuya Shoji, Yoshihito Suzuki, Ryota Sato, Ayako Wachi, Akira Kato, Yoichiro Kawai, Akira Manabe, Toshiharu Teranishi

    ACS NANO   5 ( 4 )   2806 - 2814   2011.4

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  • Homoepitaxial Size Control and Large-Scale Synthesis of Highly Monodisperse Amine-Protected Palladium Nanoparticles Reviewed

    Ryota Sato, Masayuki Kanehara, Toshiharu Teranishi

    SMALL   7 ( 4 )   469 - 473   2011.2

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    DOI： 10.1002/smll.201001685

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  • Individual transport of electrons through a chemisorbed Au nanodot in Coulomb blockade electron shuttles Reviewed

    Yasuo Azuma, Norihiro Kobayashi, Simon Chorley, Jonathan Prance, Charles G. Smith, Daisuke Tanaka, Masayuki Kanehara, Toshiharu Teranishi, Yutaka Majima

    JOURNAL OF APPLIED PHYSICS   109 ( 2 )   2011.1

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    DOI： 10.1063/1.3525833

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  • Controlled localized surface plasmon resonance wavelength for conductive nanoparticles over the ultraviolet to near-infrared region Reviewed

    Toshiharu Teranishi, Miharu Eguchi, Masayuki Kanehara, Shangjr Gwo

    JOURNAL OF MATERIALS CHEMISTRY   21 ( 28 )   10238 - 10242   2011

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  • Drastic Structural Transformation of Cadmium Chalcogenide Nanoparticles Using Chloride Ions and Surfactants Reviewed

    Masaki Saruyama, Masayuki Kanehara, Toshiharu Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   132 ( 10 )   3280 - +   2010.3

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  • Plasmon Hybridization in individual Gold Nanocrystal Dimers: Direct Observation of Bright and Dark Modes Reviewed

    Shu-Chun Yang, Hiromu Kobori, Chieh-Lun He, Meng-Hsien Lin, Hung-Ying Chen, Cuncheng Li, Masayuki Kanehara, Toshiharu Teranishi, Shangjr Gwo

    NANO LETTERS   10 ( 2 )   632 - 637   2010.2

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  • Photocatalytic Overall Water Splitting Promoted by Two Different Cocatalysts for Hydrogen and Oxygen Evolution under Visible Light Reviewed

    Kazuhiko Maeda, Anke Xiong, Taizo Yoshinaga, Takahiro Ikeda, Naoyuki Sakamoto, Takashi Hisatomi, Masaki Takashima, Daling Lu, Masayuki Kanehara, Tohru Setoyama, Toshiharu Teranishi, Kazunari Domen

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   49 ( 24 )   4096 - 4099   2010

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  • Single-Electron Transistor Fabricated by Two Bottom-Up Processes of Electroless Au Plating and Chemisorption of Au Nanoparticle Reviewed

    Yasuo Azuma, Yuhsuke Yasutake, Keijiro Kono, Masayuki Kanehara, Toshiharu Teranishi, Yutaka Majima

    JAPANESE JOURNAL OF APPLIED PHYSICS   49 ( 9 )   2010

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  • Preparation of Core-Shell-Structured Nanoparticles (with a Noble-Metal or Metal Oxide Core and a Chromia Shell) and Their Application in Water Splitting by Means of Visible Light Reviewed

    Kazuhiko Maeda, Naoyuki Sakamoto, Takahiro Ikeda, Hajime Ohtsuka, Anke Xiong, Daling Lu, Masayuki Kanehara, Toshiharu Teranishi, Kazunari Domen

    CHEMISTRY-A EUROPEAN JOURNAL   16 ( 26 )   7750 - 7759   2010

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  • Room-Temperature Coulomb Blockade from Chemically Synthesized Au Nanoparticles Stabilized by Acid-Base Interaction Reviewed

    Shinya Kano, Yasuo Azuma, Masayuki Kanehara, Toshiharu Teranishi, Yutaka Majima

    APPLIED PHYSICS EXPRESS   3 ( 10 )   2010

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  • Indium Tin Oxide Nanoparticles with Compositionally Tunable Surface Plasmon Resonance Frequencies in the Near-IR Region Reviewed

    Masayuki Kanehara, Hayato Koike, Taizo Yoshinaga, Toshiharu Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   131 ( 49 )   17736 - 17737   2009.12

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  • Seed-mediated synthesis of metal sulfide patchy nanoparticles Reviewed

    Toshiharu Teranishi, Masaki Saruyama, Masayuki Kanehara

    NANOSCALE   1 ( 2 )   225 - 228   2009.11

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  • Highly dispersed noble-metal/chromia (core/shell) nanoparticles as efficient hydrogen evolution promoters for photocatalytic overall water splitting under visible light Reviewed

    Naoyuki Sakamoto, Hajime Ohtsuka, Takahiro Ikeda, Kazuhiko Maeda, Daling Lu, Masayuki Kanehara, Kentaro Teramura, Toshiharu Teranishi, Kazunari Domen

    NANOSCALE   1 ( 1 )   106 - 109   2009.10

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  • A Study of the Behavior of SE and BSE in UltraLow Landing Voltage Condition Reviewed

    A. Miyaki, S. Takeuchi, A. Muto, Y. Dan, T. Sawahata, M. Nakagawa, T. Teranishi, Y. Majima

    Microscopy and Microanalysis   15 ( 2 )   662 - 663   2009.7

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  • Effect of End Group Position on the Formation of a Single Porphyrin Molecular Junction Reviewed

    Manabu Kiguchi, Takuya Takahashi, Masayuki Kanehara, Toshiharu Teranishi, Kei Murakoshi

    JOURNAL OF PHYSICAL CHEMISTRY C   113 ( 21 )   9014 - 9017   2009.5

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  • CdS Nanoparticles Exhibiting Quantum Size Effect by Dispersion on TiO2: Photocatalytic H-2 Evolution and Photoelectrochemical Measurements Reviewed

    Kiyonori Ogisu, Kazuhiro Takanabe, Daling Lu, Masaki Saruyama, Takahiro Ikeda, Masayuki Kanehara, Toshiharu Teranishi, Kazunari Domen

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   82 ( 4 )   528 - 535   2009.4

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  • Au Nanoparticles Chemisorbed by Dithiol Molecules Inserted in Alkanethiol Self-Assembled Monolayers Characterized by Scanning Tunneling Microscopy Reviewed

    Xinheng Li, Yuhsuke Yasutake, Keijiro Kono, Masayuki Kanehara, Toshiharu Teranishi, Yutaka Majima

    JAPANESE JOURNAL OF APPLIED PHYSICS   48 ( 4 )   2009.4

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  • Synthesis and Structure-specific Functions of Patchy Nanoparticles Reviewed

    Toshiharu Teranishi, Masaki Saruyama, Masayuki Kanehara

    CHEMISTRY LETTERS   38 ( 3 )   194 - 199   2009.3

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  • Room-Temperature Size Evolution of Thiol-Protected Gold Nanoparticles Assisted by Proton Acids and Halogen Anions Reviewed

    Masayuki Kanehara, Jun-ichi Sakurai, Hiroyuki Sugimura, Toshiharu Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   131 ( 5 )   1630 - +   2009.2

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  • Thermally Stable Silica-Coated Hydrophobic Gold Nanoparticles Reviewed

    Masayuki Kanehara, Yuka Watanabe, Toshiharu Teranishi

    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY   9 ( 1 )   673 - 675   2009.1

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    DOI： 10.1166/jnn.2009.J071

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  • CdPd sulfide heterostructured nanoparticles with metal sulfide seed-dependent morphologies Reviewed

    Masaki Saruyama, Masayuki Kanehara, Toshiharu Teranishi

    CHEMICAL COMMUNICATIONS   ( 19 )   2724 - 2726   2009

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  • Controllable Polyol Synthesis of Uniform Palladium Icosahedra: Effect of Twinned Structure on Deformation of Crystalline Lattices Reviewed

    Cuncheng Li, Ryota Sato, Masayuki Kanehara, Haibo Zeng, Yoshio Bando, Toshiharu Teranishi

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   48 ( 37 )   6883 - 6887   2009

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  • Fullerene nanowires on graphite: Epitaxial self-organizations of a fullerene bearing double long-aliphatic chains Reviewed

    Takashi Nakanishi, Hirokazu Takahashi, Tsuyoshi Michinobu, Masayuki Takeuchi, Toshiharu Teranishi, Katsuhiko Ariga

    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS   321 ( 1-3 )   99 - 105   2008.5

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  • Conversion of anisotropically phase-segregated Pd/gamma-Fe2O3 nanoparticles into exchange-coupled fct-FePd/alpha-Fe nanocomposite magnets Reviewed

    Toshiharu Teranishi, Ayako Wachi, Masayuki Kanehara, Tetsuya Shoji, Noritsugu Sakuma, Masafumi Nakaya

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   130 ( 13 )   4210 - +   2008.4

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  • Fine-tuning supramolecular assemblies of fullerenes bearing long alkyl chains Reviewed

    Takashi Nakanishi, Hirokazu Takahashi, Tsuyoshi Michinobu, Jonathan P. Hill, Toshiharu Teranishi, Katsuhiko Ariga

    THIN SOLID FILMS   516 ( 9 )   2401 - 2406   2008.3

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    DOI： 10.1016/j.tsf.2007.04.110

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  • Advanced Nanostructured Materials Preface Reviewed

    Torimoto Tsukasa, Murakoshi Kei, Sato Osamu, Teranishi Toshiharu

    TRANSACTIONS OF THE MATERIALS RESEARCH SOCIETY OF JAPAN, VOL 33, NO 1   33 ( 1 )   135   2008

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  • Liquid Phase Structural Control of Mono- and Bimetallic Nanoparticles Reviewed

    Toshiharu Teranishi, Masafumi Nakaya, Masayuki Kanehara

    Metal Nanoclusters in Catalysis and Materials Science: The Issue of Size Control   361 - 366   2008

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    DOI： 10.1016/B978-044453057-8.50025-8

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  • Strategy to fabricate small gold nanoparticle superlattices and application to nanoelectronic device Reviewed

    Toshiharu Teranishi, Masayuki Kanehara

    Shinku/Journal of the Vacuum Society of Japan   51 ( 11 )   731 - 736   2008

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    DOI： 10.3131/jvsj2.51.731

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  • Gold(0) porphyrins on gold nanoparticles Reviewed

    Masayuki Kanehara, Hirokazu Takahashi, Toshiharu Teranishi

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   47 ( 2 )   307 - 310   2008

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    DOI： 10.1002/anie.200703943

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  • Flower-shaped supramolecular assemblies: Hierarchical organization of a fullerene bearing long aliphatic chains Reviewed

    Takashi Nakanishi, Katsuhiko Ariga, Tsuyoshi Michinobu, Kaname Yoshida, Hirokazu Takahashi, Toshiharu Teranishi, Helmuth Moehwald, Dirk G. Kurth

    SMALL   3 ( 12 )   2019 - 2023   2007.12

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  • Gold(0) Porphyrins on Gold Nanoparticles

    Kanehara Masayuki, Takahashi Hirokazu, Teranishi Toshiharu

    Angewandte Chemie   120 ( 2 )   313 - 316   2007.12

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    DOI： 10.1002/ange.200703943

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  • Simultaneous fabrication of nanogap gold electrodes by electroless gold plating using a common medical liquid Reviewed

    Yuhsuke Yasutake, Keijiro Kono, Masayuki Kanehara, Toshiharu Teranishi, Mark R. Buitelaar, Charles G. Smith, Yutaka Majima

    APPLIED PHYSICS LETTERS   91 ( 20 )   2007.11

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  • One by one single-electron transport in nanomechanical Coulomb blockade shuttle Reviewed

    Yasuo Azuma, Teruyoshi Hatanaka, Masayuki Kanehara, Toshiharu Teranishi, Simon Chorley, Jonathan Prance, Charles G. Smith, Yutaka Majima

    APPLIED PHYSICS LETTERS   91 ( 5 )   2007.7

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  • Extremely high stability of glutathionate-protected Au-25 clusters against core etching Reviewed

    Yukatsu Shichibu, Yuichi Negishi, Hironori Tsunoyama, Masayuki Kanehara, Toshiharu Teranishi, Tatsuya Tsukuda

    SMALL   3 ( 5 )   835 - 839   2007.5

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    DOI： 10.1002/smll.200600611

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  • Hydrogen-induced crystal structural transformation of FePt nanoparticles at low temperature Reviewed

    Masafumi Nakaya, Masayuki Kanehara, Miho Yamauchi, Hiroshi Kitagawa, Toshiharu Teranishi

    JOURNAL OF PHYSICAL CHEMISTRY C   111 ( 20 )   7231 - 7234   2007.5

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  • Anisotropically phase-segregated Co9S8/PdSx nanoacorns: Stability improvement and new heterostructures Reviewed

    Toshiharu Teranishi, Youhei Inoue, Masaki Saruyama, Masafumi Nakaya, Masayuki Kanehara

    CHEMISTRY LETTERS   36 ( 4 )   490 - 491   2007.4

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  • Anisotropically phase-segregated Pd-Co-Pd sulfide nanoparticles formed by fusing two Co-Pd sulfide nanoparticles Reviewed

    Toshiharu Teranishi, Masaki Saruyama, Masafumi Nakaya, Masayuki Kanehara

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   46 ( 10 )   1713 - 1715   2007

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    DOI： 10.1002/anie.200603865

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  • Preparation of porphyrin derivatives-protected gold nanoparticles Reviewed

    Hirokazu Takahashi, Masayuki Kanehara, Toshiharu Teranishi

    JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY   20 ( 1 )   133 - 135   2007

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    DOI： 10.2494/photopolymer.20.133

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  • Verification of Au nanodot size dependence on coulomb step width by non-contact atomic-force spectroscopy Reviewed

    Yasuo Azuma, Masayuki Kanehara, Toshiharu Teranishi, Yutaka Majima

    IEICE TRANSACTIONS ON ELECTRONICS   E89C ( 12 )   1755 - 1757   2006.12

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    DOI： 10.1093/ietele/e89-c.12.1755

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  • Self-assembly of small gold nanoparticles through interligand interaction Reviewed

    Masayuki Kanehara, Etsushi Kodzuka, Toshiharu Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   128 ( 40 )   13084 - 13094   2006.10

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  • Anisotropically phase-separated biphasic particles Reviewed

    Toshiharu Teranishi

    Small   2 ( 5 )   596 - 598   2006.5

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    DOI： 10.1002/smll.200500519

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  • 金属ナノ粒子の一次・二次構造制御と物性

    寺西 利治

    電気化学および工業物理化学 : denki kagaku   74 ( 4 )   341 - 345   2006.4

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    DOI： 10.5796/electrochemistry.74.341

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  • One-pot synthesis of large FePt nanoparticles from metal salts and their thermal stability Reviewed

    M Nakaya, M Kanehara, T Teranishi

    LANGMUIR   22 ( 8 )   3485 - 3487   2006.4

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    DOI： 10.1021/la053504p

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  • Single electron on a nanodot in a double-barrier tunneling structure observed by noncontact atomic-force spectroscopy Reviewed

    Y Azuma, M Kanehara, T Teranishi, Y Majima

    PHYSICAL REVIEW LETTERS   96 ( 1 )   016108   2006.1

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    DOI： 10.1103/PhysRevLett.96.016108

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  • Solventless synthesis and optical properties of CdS semiconductor nanoparticles Reviewed

    Masayuki Kanehara, Hisamitsu Arakawa, Ryohei Hironaga, Toshiharu Teranishi

    Transactions of the Materials Research Society of Japan, Vol 31, No 2   31 ( 2 )   437 - 440   2006

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  • Tunneling resistance of double-barrier tunneling structures with an alkanethiol-protected Au nanoparticle Reviewed

    H. Zhang, Y. Yasutake, Y. Shichibu, T. Teranishi, Y. Majima

    Physical Review B - Condensed Matter and Materials Physics   72 ( 20 )   2005.11

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    DOI： 10.1103/PhysRevB.72.205441

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  • Tunneling resistance of double-barrier tunneling structures with an alkanethiol-protected Au nanoparticle Reviewed

    H Zhang, Y Yasutake, Y Shichibu, T Teranishi, Y Majima

    PHYSICAL REVIEW B   72 ( 20 )   2005.11

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    DOI： 10.1103/PhysRevB.72.205441

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  • Large-scale synthesis of thiolated Au-25 clusters via ligand exchange reactions of phosphine-stabilized Au-11 clusters Reviewed

    Y Shichibu, Y Negishi, T Tsukuda, T Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   127 ( 39 )   13464 - 13465   2005.10

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  • Size-tuning and optical properties of high-quality CdSe nanoparticles synthesized from cadmium stearate Reviewed

    T Teranishi, M Nishida, M Kanehara

    CHEMISTRY LETTERS   34 ( 7 )   1004 - 1005   2005.7

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    DOI： 10.1246/cl.2005.1004

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  • Analysis of supported zirconocenes by x-ray emission and absorption techniques Reviewed

    Loureiro, SR, F Silveira, GP Pires, MD Alves, FC Stedile, JHZ dos Santos, KM Bichinho, T Teranishi

    X-RAY SPECTROMETRY   34 ( 2 )   101 - 105   2005.3

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    DOI： 10.1002/xrs.753

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  • Synthesis of stably water-soluble gold nanoparticles protected by porphyrin-thiol derivative Reviewed

    Masayuki Kanehara, Toshiharu Teranishi

    e-Journal of Surface Science and Nanotechnology   3   30 - 32   2005.2

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    DOI： 10.1380/ejssnt.2005.30

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  • Desired Organization of Metal Nanoparticles and Their Electric and Magnetic Properties

    TERANISHI Toshiharu

    Kobunshi   54 ( 2 )   70 - 73   2005.2

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    DOI： 10.1295/kobunshi.54.70

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  • Application of FePt nanoparticle superlattices to nanomagnetic devices Reviewed

    T. Teranishi, M. Nakaya, M. Kanehara

    Polymer Preprints, Japan   54 ( 2 )   4793 - 4794   2005

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  • :˜Desired Patterning of Metal Nanoparticles and Their Electronic and Magnetic Properties˜

    TERANISHI Toshiharu, KANEHARA Masayuki

    Jitsumu Hyomen Gijutsu   56 ( 7 )   367 - 372   2005

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    DOI： 10.4139/sfj.56.367

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  • Direct observation of ferromagnetic spin polarization in gold nanoparticles Reviewed

    Y Yamamoto, T Miura, M Suzuki, N Kawamura, H Miyagawa, T Nakamura, K Kobayashi, T Teranishi, H Hori

    PHYSICAL REVIEW LETTERS   93 ( 11 )   116801-1-116801-4   2004.9

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  • Nanoacorns: Anisotropically phase-segregated CoPd sulfide nanoparticles Reviewed

    T Teranishi, Y Inoue, M Nakaya, Y Oumi, T Sano

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   126 ( 32 )   9914 - 9915   2004.8

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    DOI： 10.1021/ja047606y

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  • Syntheses of the novel acidic and basic ligands and superlattice formation from gold nanoparticles through interparticle acid-base interaction Reviewed

    M Kanehara, Y Oumi, T Sano, T Teranishi

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   77 ( 8 )   1589 - 1597   2004.8

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    DOI： 10.1246/bcsj.77.1589

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  • Structural Control of Metal Nanoparticles and Application to Nanodevices

    TERANISHI Toshiharu

    Bulletin of the Japan Institute of Metals   43 ( 6 )   522 - 528   2004.6

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    DOI： 10.2320/materia.43.522

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  • Effect of NaF addition on hydrothermal synthesis of high-silica mordenite Reviewed

    T Tsuda, BW Lu, YY Yao, Y Oumi, K Itabashi, T Teranishi, T Sano

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   112 ( 1306 )   332 - 337   2004.6

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    DOI： 10.2109/jcersj.112.332

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  • Diameter dependence of ferromagnetic spin moment in Au nanocrystals Reviewed

    H. Hori, Y. Yamamoto, T. Iwamoto, T. Miura, T. Teranishi, M. Miyake

    Physical Review B - Condensed Matter and Materials Physics   69 ( 17 )   1 - 174411   2004.5

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    DOI： 10.1103/PhysRevB.69.174411

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  • X-ray magnetic circular dichroism study of gold nanoparticles protected by polymer Reviewed

    Y. Yamamoto, T. Miura, T. Teranishi, M. Suzuki, N. Kawamura, H. Miyagawa, T. Nakamura, K. Kobayashi, H. Hori

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   272 ( SUPPL. 1 )   E1183 - E1184   2004.5

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    DOI： 10.1016/j.jmmm.2003.12.620

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  • Diameter dependence of ferromagnetic spin moment in Au nanocrystals Reviewed

    H Hori, Y Yamamoto, T Iwamoto, T Miura, T Teranishi, M Miyake

    PHYSICAL REVIEW B   69 ( 17 )   174411-1-174411-5   2004.5

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    DOI： 10.1103/PhysRevB.69.174411

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  • Tris(pyrazolyl)borate imido vanadium (V) compound immobilized on inorganic supports and its use in ethylene polymerization Reviewed

    ACA Casagrande, TTD Tavares, MCA Kuhn, OL Casagrande, JHZ dos Santos, T Teranishi

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   212 ( 1-2 )   267 - 275   2004.4

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  • Novel synthesis of FePt nanoparticles and magnetic properties of their self-assembled superlattices Reviewed

    M Nakaya, Y Tsuchiya, K Ito, Y Oumi, T Sano, T Teranishi

    CHEMISTRY LETTERS   33 ( 2 )   130 - 131   2004.2

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  • Effect of aluminum source on hydrothermal synthesis of high-silica mordenite in fluoride medium, and it's thermal stability Reviewed

    BW Lu, T Tsuda, H Sasaki, Y Oumi, K Itabashi, T Teranishi, T Sano

    CHEMISTRY OF MATERIALS   16 ( 2 )   286 - 291   2004.1

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    DOI： 10.1021/cm030576y

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  • Direct synthesis of high-silica mordenite and its thermal stability Reviewed

    T Tsuda, BW Lu, H Sasaki, Y Oumi, K Itabashi, T Teranishi, T Sano

    RECENT ADVANCES IN THE SCIENCE AND TECHNOLOGY OF ZEOLITES AND RELATED MATERIALS, PTS A - C   154   224 - 232   2004

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  • Effect of NaF addition on hydrothermal synthesis of high-silica mordenite Reviewed

    Tomohiro Tsuda, Baowang Lu, Yasuyuki Yao, Yasunori Oumi, Keiji Itabashi, Toshiharu Teranishi, Tsuneji Sano

    Journal of the Ceramic Society of Japan   112 ( 1306 )   332 - 337   2004

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    DOI： 10.2109/jcersj.112.332

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  • Direct synthesis of Pt nanoparticles-containing MCM-41 using surfactant stabilized Pt nanoparticles Reviewed

    Y Oumi, H Oka, M Kanehara, T Teranishi, T Sano

    RECENT ADVANCES IN THE SCIENCE AND TECHNOLOGY OF ZEOLITES AND RELATED MATERIALS, PTS A - C   154   834 - 840   2004

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  • Preparation and characterization of polypropylene/mesoporous silica nanocomposites with confined polypropylene Reviewed

    H Nakajima, K Yamada, Y Iseki, S Hosoda, A Hanai, Y Oumi, T Teranishi, T Sano

    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS   41 ( 24 )   3324 - 3332   2003.12

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    DOI： 10.1002/polb.10700

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  • Co-incorporation of Al and Ga into BEA zeolite by the pH control method Reviewed

    Y Oumi, Jintsugawa, I, S Kikuchi, S Nawata, T Fukushima, T Teranishi, T Sano

    MICROPOROUS AND MESOPOROUS MATERIALS   66 ( 1 )   109 - 116   2003.11

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    DOI： 10.1016/j.micromeso.2003.08.026

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  • Hybrid zirconocene supported catalysts Reviewed

    F Silveira, Loureiro, SR, GB de Galland, FC Stedile, JHZ dos Santos, T Teranishi

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   206 ( 1-2 )   389 - 398   2003.10

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    DOI： 10.1016/S1381-1169(03)00424-2

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  • Fabrication and electronic properties of gold nanoparticle superlattices Reviewed

    T Teranishi

    COMPTES RENDUS CHIMIE   6 ( 8-10 )   979 - 987   2003.8

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    DOI： 10.1016/j.crci.2003.08.012

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  • Synthesis and characterization of mesoporous silica fibers Reviewed

    H Kanno, Y Oumii, T Kodaira, T Teranishi, T Sano

    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN   111 ( 7 )   502 - 508   2003.7

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    DOI： 10.2109/jcersj.111.502

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  • Formation of low-symmetric 2D superlattices of gold nanoparticles through surface modification by acid-base interaction Reviewed

    M Kanehara, Y Oumi, T Sano, T Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   125 ( 29 )   8708 - 8709   2003.7

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  • Magnetic properties of the noble metal nanoparticles protected by polymer Reviewed

    Y Yamamoto, T Miura, Y Nakae, T Teranishi, M Miyake, H Hori

    PHYSICA B-CONDENSED MATTER   329 ( II )   1183 - 1184   2003.5

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    DOI： 10.1016/S0921-4526(02)02102-6

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  • Directed self-assembly of two kinds of nanoparticles utilizing monolayer films of diblock copolymer micelles Reviewed

    BH Sohn, JM Choi, SI Yoo, SH Yun, WC Zin, JC Jung, M Kanehara, T Hirata, T Teranishi

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   125 ( 21 )   6368 - 6369   2003.5

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  • Magnetic Properties and LB Monolayer Fabrication of FePt Nano-particles

    TSUCHIYA Y., ITO K., TERANISHI T., SHIMIZU T., MIYAKE M.

    Journal of the Magnetics Society of Japan   27 ( 4 )   332 - 335   2003.4

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    The composition, crystal structure, and magnetic properties of chemically synthesized FePt nano-particles were investigated. The composition of these particles is closely related to the crystal structure. FePt nano-particles with a composition range of 53.3 < Fe (atomic %) < 70 show high coercivity after annealing at 600°C in vacuum, and are transformed from a chemically disordered fcc structure to a chemically ordered L10 phase. An annealed film of Fe63Pt37 nano-particles has an out-of-plane coercivity of 11450 Oe. We applied the Langmuir-Blodgett technique for mono-layer fabrication of FePt nano-particles. The obtained mono-layer, with a thickness of 6 nm, has a hexagonal-like close-packed assembly with an are of 12×20cm2.

    DOI： 10.3379/jmsjmag.27.332

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  • Size evolution of alkanethiol-protected gold nanoparticles by heat treatment in the solid state Reviewed

    Takami Shimizu, Toshiharu Teranishi, Satoshi Hasegawa, Mikio Miyake

    Journal of Physical Chemistry B   107 ( 12 )   2719 - 2724   2003.3

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    DOI： 10.1021/jp026920g

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  • Size evolution of alkanethiol-protected gold nanoparticles by heat treatment in the solid state Reviewed

    T Shimizu, T Teranishi, S Hasegawa, M Miyake

    JOURNAL OF PHYSICAL CHEMISTRY B   107 ( 12 )   2719 - 2724   2003.3

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    DOI： 10.1021/jp026920g

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  • Effect of the framework structure on the dealumination-realumination behavior of zeolite Reviewed

    Y. Oumi, S. Nemoto, S. Nawata, T. Fukushima, T. Teranishi, T. Sano

    Materials Chemistry and Physics   78 ( 2 )   551 - 557   2003.2

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    DOI： 10.1016/S0254-0584(02)00376-0

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  • Direct hydrothermal synthesis and stabilization of high-silica mordenite (Si : Al=25) using tetraethylammonium and fluoride ions Reviewed

    H Sasaki, Y Oumi, K Itabashi, BW Lu, T Teranishi, T Sano

    JOURNAL OF MATERIALS CHEMISTRY   13 ( 5 )   1173 - 1179   2003

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    DOI： 10.1039/b212519f

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  • Synthesis and characterization of mesoporous silica fibers Reviewed

    Hideaki Kanno, Yasunori Oumi, Tetsuya Kodaira, Toshiharu Teranishi, Tsuneji Sano

    Journal of the Ceramic Society of Japan   111 ( 1295 )   502 - 508   2003

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    DOI： 10.2109/jcersj.111.502

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  • Influences of aliphatic alcohols on crystallization of large mordenite crystals and their sorption properties Reviewed

    Y Oumi, Y Kakinaga, T Kodaira, T Teranishi, T Sano

    JOURNAL OF MATERIALS CHEMISTRY   13 ( 2 )   181 - 185   2003

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    DOI： 10.1039/b209361h

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  • Planar array of 1D gold nanoparticles on ridge-and-valley structured carbon Reviewed

    T Teranishi, A Sugawara, T Shimizu, M Miyake

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   124 ( 16 )   4210 - 4211   2002.4

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    DOI： 10.1021/ja017536k

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  • Isospecific polymerization of propylene with Metal-MCM-41 Reviewed

    Yasunori Oumi, Ayako Hanai, Toyoaki Miyazaki, Hiroyoshi Nakajima, Satoru Hosoda, Toshiharu Teranishi, Tsuneji Sano

    Studies in Surface Science and Catalysis   146   753 - 756   2002

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    DOI： 10.1016/S0167-2991(03)80493-7

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  • Effect of additional metal ions on catalyses of polymer-stabilized metal nanoclusters Reviewed

    N Toshima, Y Shiraishi, T Teranishi

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   177 ( 1 )   139 - 147   2001.12

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    DOI： 10.1016/S1381-1169(01)00314-4

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  • Heat-induced size evolution of gold nanoparticles in the solid state Reviewed

    T Teranishi, S Hasegawa, T Shimizu, M Miyake

    ADVANCED MATERIALS   13 ( 22 )   1699 - 1701   2001.11

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    DOI： 10.1002/1521-4095(200111)13:22<1699::AID-ADMA1699>3.0.CO;2-3

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  • Indenyl-silica xerogels: new materials for supporting metallocene catalysts Reviewed

    JHZ dos Santos, HT Ban, T Teranishi, T Uozumi, T Sano, K Soga

    APPLIED CATALYSIS A-GENERAL   220 ( 1-2 )   287 - 302   2001.10

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    DOI： 10.1016/S0926-860X(01)00730-X

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  • Magnetic properties of nano-particles of Au, Pd and Pd/Ni alloys Reviewed

    H Hori, T Teranishi, M Taki, S Yamada, M Miyake, Y Yamamoto

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   226 ( PART II )   1910 - 1911   2001.5

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    DOI： 10.1016/S0304-8853(00)01393-7

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  • Ethylene (co)polymerization with supported-metallocenes prepared by the sol-gel method Reviewed

    JHZ dos Santos, T Uozumi, T Teranishi, T Sano, K Soga

    POLYMER   42 ( 10 )   4517 - 4525   2001.5

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    DOI： 10.1016/S0032-3861(00)00842-9

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  • Application of porous inorganic materials to adsorptive separation of methylalumoxane used as co-catalyst in olefin polymerization Reviewed International journal

    T. Sano, H. Hagimoto, S. Sumiya, Y. Naito, Y. Oumi, T. Uozumi, K. Soga

    Microporous and Mesoporous Materials   44-45   557 - 564   2001.4

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    DOI： 10.1016/s1387-1811(01)00234-7

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  • Various ligand-stabilized metal nanoclusters as homogeneous and heterogeneous catalysts in the liquid phase Reviewed

    N Toshima, Y Shiraishi, T Teranishi, M Miyake, T Tominaga, H Watanabe, W Brijoux, H Bonnemann, G Schmid

    APPLIED ORGANOMETALLIC CHEMISTRY   15 ( 3 )   178 - 196   2001.3

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    DOI： 10.1002/aoc.146

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  • Detection of nitric oxide on carbon electrode modified with ionic polymers and alpha-cyclodextrin Reviewed

    A Kitajima, T Teranishi, M Miyake

    ELECTROCHEMISTRY   69 ( 1 )   16 - 20   2001.1

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  • Pulsed high magnetic field ESR measurement on Ni/Pd nano-particles Reviewed

    H Hori, T Teranishi, T Sasaki, M Miyake, Y Yamamoto, S Yamada, H Nojiri, M Motokawa

    PHYSICA B   294   292 - 297   2001.1

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    DOI： 10.1016/S0921-4526(00)00662-1

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  • Supported metallocenes using inorganic-organic hybrid xerogels Reviewed

    JHZ dos Santos, HT Ban, T Teranishi, T Uozumi, T Sano, K Soga

    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL   158 ( 2 )   541 - 557   2000.9

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    DOI： 10.1016/S1381-1169(00)00141-2

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  • Anomalous spin polarization in Pd and Au nano-particles Reviewed

    Y Nakae, Y Seino, T Teranishi, M Miyake, S Yamada, H Hori

    PHYSICA B   284 ( PART II )   1758 - 1759   2000.7

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    DOI： 10.1016/S0921-4526(99)02928-2

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  • Self-organization of Au nanoparticles protected by 2,6-bis(1 '-(8-thiooctyl)benzimidazol-2-yl)pyridine Reviewed

    T Teranishi, M Haga, Y Shiozawa, M Miyake

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   122 ( 17 )   4237 - 4238   2000.5

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    DOI： 10.1021/ja000031u

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  • Molecular formula determination of constituents in Arabian mix vacuum residue by electrospray ionization fourier transform ion cyclotron resonance mass spectrometry Reviewed

    K Miyabayashi, K Suzuki, T Teranishi, Y Naito, K Tsujimoto, R Miyake

    CHEMISTRY LETTERS   ( 2 )   172 - 173   2000.2

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    DOI： 10.1246/cl.2000.172

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  • Shape control of Pt nanoparticles Reviewed

    Toshiharu Teranishi, Ryo Kurita, Mikio Miyake

    Journal of Inorganic and Organometallic Polymers and Materials   10 ( 3 )   145 - 156   2000

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    DOI： 10.1023/A:1009476128466

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  • Novel synthesis of monodispersed Pd/Ni nanoparticles Reviewed

    T Teranishi, M Miyake

    CHEMISTRY OF MATERIALS   11 ( 12 )   3414 - +   1999.12

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    DOI： 10.1021/cm990270k

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  • Structure dependence of the surface pKa of mercaptoundecanoic acid SAM on gold Reviewed

    K Sugihara, T Teranishi, K Shimazu, K Uosaki

    ELECTROCHEMISTRY   67 ( 12 )   1172 - 1174   1999.12

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  • Anomalous magnetic polarization effect of Pd and Au nano-particles Reviewed

    H Hori, T Teranishi, Y Nakae, Y Seino, M Miyake, S Yamada

    PHYSICS LETTERS A   263 ( 4-6 )   406 - 410   1999.12

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    DOI： 10.1016/S0375-9601(99)00742-2

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  • Chemical modification of carbon hexagonal plane by ligand exchange reaction of ferrocene Reviewed

    M Miyake, K Yasuda, T Kashihara, T Teranishi

    CHEMISTRY LETTERS   ( 10 )   1037 - 1038   1999.10

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    DOI： 10.1246/cl.1999.1037

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  • Size control of monodispersed Pt nanoparticles and their 2D organization by electrophoretic deposition Reviewed

    T Teranishi, M Hosoe, T Tanaka, M Miyake

    JOURNAL OF PHYSICAL CHEMISTRY B   103 ( 19 )   3818 - 3827   1999.5

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    DOI： 10.1021/jp983478m

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  • Synthesis and functionalization of poly(ethylene-co-dicyclopentadiene) Reviewed

    J Suzuki, Y Kino, T Uozumi, T Sano, T Teranishi, J Jin, K Soga, T Shiono

    JOURNAL OF APPLIED POLYMER SCIENCE   72 ( 1 )   103 - 108   1999.4

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    DOI： 10.1002/(SICI)1097-4628(19990404)72:1<103::AID-APP11>3.0.CO;2-Z

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  • P-3. Analyses of Chemical Structures of Aliphatic Constituents in Coals by the Utilization of RuO_4 Oxidation

    MIYAKE Mikio, SAITOH Satoshi, TERANISHI Toshiharu

    Proceedings of the Annual Conference of The Japan Institute of Energy   8   329 - 332   1999

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    Reaction conditions of RuO_4 oxidation of coals were investigated to produce carboxylic acids with high yields and without secondary reactions. Amounts of mono-and dicarboxylic acids increase by a decrease in coal rank, which tendencies may reflect those of alkyl groups and methylene bridges contained in coals, respectively. Maximum amount of adipic acid, as connected to naphthenic rings in coal, was observed for coals with 80-85 wt%C.

    DOI： 10.20550/jietaikaiyoushi.8.0_329

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  • Polymer-Protected Ni/Pd Bimetallic Nano-Clusters: Preparation, Characterization and Catalysis for Hydrogenation of Nitrobenzene Reviewed

    P. Lu, T. Teranishi, K. Asakura, M. Miyake, N. Toshima

    Journal of Physical Chemistry B   103 ( 44 )   9673 - 9682   1999

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    DOI： 10.1021/jp992177p

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  • Silica Coating on Carbonaceous Mesophase Spherules

    MIYAKE Mikio, YAMAZAKI Yoshinori, MIYAKE Saori, TERANISHI Toshiharu

    TANSO   185   302 - 305   1998.12

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    Carbonaceous mesophase spherules (MS), prepared from coal-tar pitch, have a layer structure exposing the edgesof constituent aromatic molecules to the surface. Oxidation with nitric acid converted MS from hydrophobic to hydrophilicnature due to introduction of acidic functional groups to the surface. A water thin layer was formed on MS surface bysuspending oxidized MS in water followed by in benzene, i.e., W/O emulsion was formed. Na2O·nSiO2(n: 2.18-3.14) dissolved in the water layer was allowed to react with (NH4) 2SO4 to coat MS surface with silica. Detailed reaction conditions were clarified to successfully coat MS by silica. Silica-coated MS showed high BET surface area (as much as 200 times) compared with oxidized MS.

    DOI： 10.7209/tanso.1998.302

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  • Investigation on the polymer particle growth in ethylene polymerization with PS beads supported rac-Ph2Si(Ind)(2)ZrCl2 catalyst Reviewed

    SC Hong, T Teranishi, K Soga

    POLYMER   39 ( 26 )   7153 - 7157   1998.12

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    DOI： 10.1016/S0032-3861(98)00173-6

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  • Magnetic properties of nanoparticles in Pd/Ni alloys Reviewed

    N Nunomura, H Hori, T Teranishi, M Miyake, S Yamada

    PHYSICS LETTERS A   249 ( 5-6 )   524 - 530   1998.12

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    DOI： 10.1016/S0375-9601(98)00779-8

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  • Alternating copolymerization of ethylene and propene with the [ethylene(1-indenyl)(9-fluorenyl)]zirconium dichloride methylaluminoxane catalyst system Reviewed

    JH Jin, T Uozumi, T Sano, T Teranishi, K Soga, T Shiono

    MACROMOLECULAR RAPID COMMUNICATIONS   19 ( 7 )   337 - 339   1998.7

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    DOI： 10.1002/(SICI)1521-3927(19980701)19:7<337::AID-MARC337>3.0.CO;2-8

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  • Synthesis of monodisperse gold nanoparticles using linear polymers as protective agents Reviewed

    T Teranishi, Kiyokawa, I, M Miyake

    ADVANCED MATERIALS   10 ( 8 )   596 - +   1998.6

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    DOI： 10.1002/(SICI)1521-4095(199805)10:8<596::AID-ADMA596>3.0.CO;2-Y

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  • Promotion effect of lanthanoid ions on catalytic activity of polymer-immobilized palladium nanoparticles Reviewed

    T Teranishi, K Nakata, M Iwamoto, M Miyake, N Toshima

    REACTIVE & FUNCTIONAL POLYMERS   37 ( 1-3 )   111 - 119   1998.6

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    DOI： 10.1016/S1381-5148(97)00120-X

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  • Magnetization of nano-fine particles of Pd/Ni alloys Reviewed

    N Nunomura, T Teranishi, M Miyake, A Oki, S Yamada, N Toshima, H Hori

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   177 ( PART 2 )   947 - 948   1998.1

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    DOI： 10.1016/S0304-8853(97)00914-1

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  • Size Control of Palladium Nanoparticles and Their Crystal Structures Reviewed

    T. Teranishi, M. Miyake

    Chemistry of Materials   10 ( 2 )   594 - 600   1998

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    DOI： 10.1021/cm9705808

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  • Formation of monodispersed ultrafine platinum particles and their electrophoretic deposition on electrodes Reviewed

    T Teranishi, M Hosoe, M Miyake

    ADVANCED MATERIALS   9 ( 1 )   65 - &   1997.1

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    DOI： 10.1002/adma.19970090115

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  • 8. Stuructural Analyses of Aliphatic Constituents in Coals by the Utilization of Mild Oxidation with RuO_4

    MIYAKE Mikio, YOSHIDA Koji, TERANISHI Toshiharu

    Proceedings of Conference on Coal Science   34   33 - 36   1997

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    Carboxylic acids produced from aliphatic constituents in coals after oxidation with RuO_4 were analyzed by ion chromatography and GC-MS. Results of such analyses suggest that metyl group is major substituent to aromatic ring, which amount is independent of coal rank. It is also suggested that amounts of ethyl group and dimethylen bridge increase for coals with lower rank. Maximum amount of phthalic ester was observed for coals with 80〜83wt%C, indicating that coals with such rank preferentially consisted of naphthalene nucleus.

    DOI： 10.20550/jiesekitanronbun.34.0_33

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  • ESR study on palladium nanoparticles Reviewed

    T. Teranishi, H. Hori, M. Miyake

    Journal of Physical Chemistry B   101 ( 30 )   5774 - 5776   1997

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    DOI： 10.1021/jp970599y

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  • Structures of polyethylene and copolymers of ethylene with 1-octene and oligoethylene produced with the Cp(2)ZrCl(2) and [(C(5)Me(4))SiMe(2)N(t-Bu)]TiCl2 catalysts Reviewed

    K Soga, T Uozumi, S Nakamura, T Toneri, T Teranishi, T Sano, T Arai, T Shiono

    MACROMOLECULAR CHEMISTRY AND PHYSICS   197 ( 12 )   4237 - 4251   1996.12

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  • Structures of polyethylene and poly(ethylene-co-1-octene) produced with the Cp(2)ZrCl(2) and [(C(5)Me(4))SiMe(2)N(t-Bu)]TiCl2 catalysts. Reviewed

    T Uozumi, T Toneri, K Soga

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   211 ( 12 )   277 - POLY   1996.3

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  • Magnetic and electric properties on processed magnetic ultrafine structures Reviewed

    H Hori, A Oki, N Nunomura, N Aoki, T Kikutani, C Hong, T Teranishi, M Miyake, M Furusawa, S Yamada

    CZECHOSLOVAK JOURNAL OF PHYSICS   46 ( SUPPL. 4 )   2371 - 2372   1996

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/BF02571177

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  • Electroless metal plating on carbonaceous mesophase spherules Reviewed

    T Teranishi, K Takeda, Y Yamazaki, M Miyake

    CARBON   34 ( 5 )   589 - 594   1996

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/0008-6223(96)00014-0

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  • Photosensitized Reduction of Carbon Dioxide in Solution Using Noble-Metal Clusters for Electron Transfer Reviewed

    Naoki Toshima, Yumi Yamaji, Toshiharu Teranishi, Tetsu Yonezawa

    Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences   50 ( 2-3 )   283 - 291   1995.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1515/zna-1995-2-321

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  • Direct oxidation of benzene by electron transfer in a multi-functionalized chelate resin system Reviewed

    Toshiharu Teranishi, Naoki Toshima

    Journal of the Chemical Society, Dalton Transactions   ( 6 )   979 - 985   1995

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/DT9950000979

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  • ULTRAFINE PALLADIUM PARTICLES SUPPORTED ON CHELATE RESIN METAL-COMPLEXES - PROMOTION EFFECT OF LANTHANIDE IONS ON CATALYTIC ACTIVITY Reviewed

    T TERANISHI, N TOSHIMA

    JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS   ( 20 )   2967 - 2974   1994.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/DT9940002967

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  • Structural analysis of chelate resin-iron complex by using extended X-ray absorption fine structure spectroscopy Reviewed

    Toshiharu Teranishi, Masafumi Harada, Kiyotaka Asakura, Hiroyuki Asanuma, Yasukazu Saito, Naoki Toshima

    Journal of Physical Chemistry   98 ( 33 )   7967 - 7975   1994

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/j100084a009

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  • Ultrafine palladium particles supported on chelate resin-metal complexes: Promotion effect of lanthanide ions on catalytic activity Reviewed

    Toshiharu Teranishi, Naoki Toshima

    Journal of the Chemical Society, Dalton Transactions   ( 20 )   2967 - 2974   1994

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/DT9940002967

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  • PALLADIUM CLUSTER CATALYSTS SUPPORTED ON CHELATE RESIN-METAL COMPLEXES Reviewed

    N TOSHIMA, T TERANISHI, Y SAITO

    MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA   59   327 - 341   1992.6

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  • PLATINUM CLUSTER CATALYSTS SUPPORTED ON POROUS CHELATE RESIN METAL-COMPLEXES - EFFECT OF RESIN POROSITY ON CATALYTIC ACTIVITY Reviewed

    N TOSHIMA, T TERANISHI, H ASANUMA, Y SAITO

    JOURNAL OF PHYSICAL CHEMISTRY   96 ( 9 )   3796 - 3799   1992.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/j100188a042

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  • SUBSTRATE SELECTIVITY BY THE POLYMER SUPPORT IN HYDROGENATION OVER CROSS-LINKED POLYMER-IMMOBILIZED METAL-CATALYSTS Reviewed

    N TOSHIMA, M OHTAKI, T TERANISHI

    REACTIVE POLYMERS   15 ( C )   135 - 145   1991.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/0923-1137(91)90157-J

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  • PREPARATION OF PLATINUM CLUSTER CATALYST SUPPORTED ON POROUS CHELATE RESIN-METAL COMPLEXES FOR HYDROGENATION OF OLEFIN AND DIENE Reviewed

    N TOSHIMA, T TERANISHI, H ASANUMA, Y SAITO

    CHEMISTRY LETTERS   ( 5 )   819 - 822   1990.5

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Books

  • CSJ Current Review 32 プラズモンと光圧が導くナノ物質科学

    寺西 利治（ Role： Contributor可視・近赤外プラズモンナノ粒子の設計・合成）

    化学同人  2019.3 

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  • ナノコロイド 合成・物性・機能

    寺西 利治（ Role： Joint author）

    近代科学社  2014.6 

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  • CSJ Current Review 09 金属および半導体ナノ粒子の科学

    寺西 利治（ Role： Joint editor金属ナノ粒子の精密構造制御，電子物性）

    化学同人  2012.6 

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  • CSJ Current Review 04 新しい局面を迎えた界面の分子科学

    寺西 利治（ Role： Contributorナノ粒子規則集積）

    化学同人  2011.3 

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  • 現代界面コロイド科学の事典 ーシャンプーから宇宙までー

    寺西 利治（ Role： Contributor単電子エレクトロニスクとコロイド界面科学）

    丸善株式会社出版  2010.5 

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  • 金属ナノ粒子超格子

    工業材料・日刊工業新聞社  2009 

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  • ヘテロ接合ナノ粒子

    超分子サイエンス＆テクノロジー・（株）エヌ・ティー・エス  2009 

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  • 金ナノ粒子が拓くエレクトロニクス

    金ナノテクノロジー：その基礎と応用・（株）シーエムシー出版  2009 

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  • 異方性相分離ナノ粒子

    金属ナノ・マイクロ粒子の形状・構造制御技術・（株）シーエムシー出版  2009 

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  • 非対称ナノ粒子の合成と機能

    トポロジーデザイニング・（株）エヌ・ティー・エス  2009 

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  • Nano-Organization of Inorganic Nanoparticles

    Bottom-up Nanofabrication: Supramolecules, Self-Assemblies, and Organized Films, American Scientific Publishers  2009 

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  • ナノ粒子

    配位空間の化学 ー最新技術と応用ー・（株）シーエムシー出版  2009 

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  • Nano-Organization of Inorganic Nanoparticles

    Bottom-up Nanofabrication: Supramolecules, Self-Assemblies, and Organized Films, American Scientific Publishers  2009 

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  • Liquid Phase Structural Control of Mono- and Bimetallic Nanoparticles

    Metal Nanoclusters in Catalysis and Materials Science: the Issue of Size-Control, Elsevier  2008 

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  • 微細金ナノ粒子超格子の創製戦略とナノ電子デバイス応用

    真空・日本真空協会  2008 

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  • 異方性相分離無機ナノ粒子：合成と機能

    未来材料・(株)エヌ・ティー・エス  2008 

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  • Seed-mediated成長法を用いた金属硫化物ヘテロ構造ナノ粒子の合成

    ナノ学会会報・ナノ学会  2008 

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  • 無機ナノ粒子の液相構造制御と機能材料への応用

    鉱山・（財）金属鉱山会  2008 

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  • Au, Agコロイド、貴金属コロイド

    触媒便覧・（株）講談社サイエンティフィック  2008 

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  • Liquid Phase Structural Control of Mono- and Bimetallic Nanoparticles

    Metal Nanoclusters in Catalysis and Materials Science: the Issue of Size-Control, Elsevier  2008 

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MISC

  • Applying neural network potentials for magnetic compounds and verification of their precision

    立津慶幸, 松本憲志, 佐藤良太, 寺西利治, 寺西利治

    日本磁気学会学術講演概要集   48th   2024

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  • 磁性物質探索に向けた汎用原子レベルシミュレータの検証

    立津慶幸, 松本憲志, 佐藤良太, 寺西利治, 寺西利治

    日本金属学会講演大会(Web)   175th   2024

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  • Synthesis of 3D Ag nanoparticle superlattices and their structure-specific functions

    ZHU Lingkai, 猿山雅亮, 寺西利治, 寺西利治

    日本化学会春季年会講演予稿集(Web)   104th   2024

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  • Effect of Defects on Photoluminescent Properties of CdTe Nanoparticles Depending on Sizes

    高畑遼, 高畑遼, 猿山雅亮, 山添誠司, 寺西利治, 寺西利治

    日本化学会春季年会講演予稿集(Web)   104th   2024

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  • Fe-Pd-In合金ナノ粒子の構造安定性に関する第一原理計算

    立津慶幸, 松本憲志, 佐藤良太, 寺西利治

    日本金属学会講演大会(Web)   172nd   2023

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  • Polarization dependent optical responses of Cu2-xS nanodisk superlattices

    山田琢允, 田原弘量, 猿山雅亮, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   70th   2023

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  • External electric field control of photoluminescence of single lead halide perovskite nanocrystals

    張健一, 田原弘量, 田原弘量, 山田琢允, 佐藤良太, 猿山雅亮, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   84th   2023

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  • 元素間相溶性に支配されたZ3型規則合金ナノ粒子の形成過程

    松本憲志, 工藤昌輝, 高畑遼, 佐藤良太, 山内美穂, 寺西利治, 寺西利治

    ナノ学会大会講演予稿集   21st (Web)   2023

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  • Optical responses of ion-exchanged nanodisk superlattices revealed by polarization-resolved microscopy

    山田琢允, 田原弘量, 猿山雅亮, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   84th   2023

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  • Room Temperature Operable Single-Electron Transistor using a CdS/CdTe Dimeric Nanoparticle

    新田亮介, 伊澤誠一郎, 猿山雅亮, 寺西利治, 真島豊

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   84th   2023

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  • Agコロイド結晶のone-pot合成

    ZHU Lingkai, 猿山雅亮, 寺西利治, 寺西利治

    ナノ学会大会講演予稿集   21st (Web)   2023

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  • Surface plasmon properties of ordered alloy nanoparticles

    竹熊晴香, 佐藤良太, 飯田健二, 川脇徳久, 治田充貴, 倉田博基, 信定克幸, 寺西利治

    プラズモニクスシンポジウム(CD-ROM)   19th   2023

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  • 三次元ナノ粒子超格子の直接合成と構造制御

    猿山雅亮, 寺西利治

    ナノ学会大会講演予稿集   21st (Web)   2023

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  • One-pot synthesis of Ag colloidal crystals

    ZHU Lingkai, 猿山雅亮, 寺西利治, 寺西利治

    日本化学会春季年会講演予稿集(Web)   103rd   2023

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  • Controlling and understanding of the impact of intraband transition on high-order harmonic generation in semiconductor nanoparticles

    中川耕太郎, 廣理英基, 佐藤駿丞, 田原弘量, 関口文哉, 湯本郷, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   70th   2023

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  • Anisotropy Control of 3-Dimentional Nanocrystal Superlattice

    猿山雅亮, 寺西利治

    日本化学会春季年会講演予稿集(Web)   103rd   2023

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  • Size dependence of structural phase transition in individual lead halide perovskite nanocrystals

    張健一, 山田琢允, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   70th   2023

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  • Harnessing infrared solar energy with plasmonic energy upconversion

    Zichao Lian, Yoichi Kobayashi, Junie Jhon M. Vequizo, Chandana Sampath Kumara Ranasinghe, Akira Yamakata, Takuro Nagai, Koji Kimoto, Katsuaki Kobayashi, Koji Tanaka, Toshiharu Teranishi, Masanori Sakamoto

    NATURE SUSTAINABILITY   2022.10

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  • Nonlinear optical response of semiconductor nano disk superlattices

    山田琢允, 田原弘量, 田原弘量, 猿山雅亮, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   77 ( 2 )   2022

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  • High-order harmonic generation from size-controlled semiconductor quantum dots: Effect of intraband transitions

    中川耕太郎, 廣理英基, 佐藤駿丞, 田原弘量, 関口文哉, 湯本郷, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   83rd   2022

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  • Exciton-phonon couplings in single lead-halide perovskite nanocrystals

    張健一, 山田琢允, 田原弘量, 只野央将, 鈴浦秀勝, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   83rd   2022

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  • Optical response of halide perovskite nanocube superlattices

    田原弘量, 田原弘量, 山田琢允, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   77 ( 2 )   2022

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  • Photoluminescence of LO-phonon replicas in single CsPbBr3 perovskite nanocrystals

    張健一, 田原弘量, 田原弘量, 山田琢允, 鈴浦秀勝, 只野央将, 佐藤良太, 猿山雅亮, 廣理英基, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   77 ( 2 )   2022

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  • Exciton-phonon couplings in single lead-halide perovskite nanocrystals

    張健一, 山田琢允, 田原弘量, 只野央将, 鈴浦秀勝, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   69th   2022

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  • Bimetallic synergy of PtRu nanoparticle cocatalyst on photocatalytic water splitting activity

    猿山雅亮, PELICANO Christian Mark, 寺西利治

    ナノ学会大会講演予稿集   20th   2022

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  • Plasmonic Properties of C1-ordered PtIn2 Nanospheres in the Visible Region

    竹熊晴香, 佐藤良太, 飯田健二, 川脇徳久, 治田充貴, 倉田博基, 信定克幸, 寺西利治

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   83rd   2022

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  • Synthesis and Plasmonic Properties of Pseudo-Coinage Metal Ordered Nanoalloys

    竹熊晴香, 佐藤良太, 飯田健二, 川脇徳久, 治田充貴, 倉田博基, 治田充貴, 倉田博基, 信定克幸, 寺西利治, 寺西利治

    ナノ学会大会講演予稿集   20th   2022

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  • Development of PtRu Alloy Nanoparticle Cocatalysts for Water Splitting Photocatalysts

    PEILCANO Christian Mark, 猿山雅亮, 寺西利治

    日本化学会春季年会講演予稿集(Web)   102nd   2022

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  • Synthesis and Plasmonic Properties of C1-ordered PtIn2 Nanoalloys

    竹熊晴香, 佐藤良太, 佐藤良太, 飯田健二, 川脇徳久, 治田充貴, 治田充貴, 倉田博基, 倉田博基, 信定克幸, 寺西利治, 寺西利治

    プラズモニクスシンポジウム(CD-ROM)   18th   2022

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  • High-order harmonic generation from semiconductor quantum dots: Effect of size-controlled intraband transitions

    中川耕太郎, 関口文哉, 佐藤駿丞, 猿山雅亮, 佐藤良太, 寺西利治, 廣理英基, 金光義彦

    日本物理学会講演概要集(CD-ROM)   77 ( 2 )   2022

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  • Investigation of defects by size separation of CdTe nanoparticles

    高畑遼, 猿山雅亮, 坂本雅典, 山添誠司, 寺西利治

    ナノ学会大会講演予稿集   19th   2021

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  • Trion and biexciton luminescence from single halide perovskite nanocrystals

    張健一, 山田琢允, 田原弘量, 廣理英基, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   76 ( 1 )   2021

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  • Spontaneous Formation and Structural Evolution of Three-dimensional Copper Sulfide Nanoparticle Superstructure

    猿山雅亮, 高畑遼, 佐藤良太, 寺西利治

    ナノ学会大会講演予稿集   19th   2021

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  • Ultrafast carrier dynamics in lead-halide perovskite nanocrystal films revealed by transient photocurrent measurements

    媚山悦企, 田原弘量, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   76 ( 1 )   2021

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  • Inside/Outside-Selective Incorporation of Atomic Pt into CdSe Nanoplatelets

    遠藤健一, 猿山雅亮, 寺西利治

    ナノ学会大会講演予稿集   19th   2021

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  • CdS semiconductor quantum dot single electron transistor based on bottom-up process

    大勝賢樹, 西之坊拓海, 猿山雅亮, 寺西利治, 真島豊

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   82nd   2021

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  • Synthesis and Plasmonic Properties of C1-ordered PtIn2 Nanoalloys

    竹熊晴香, 佐藤良太, 飯田健二, 川脇徳久, 治田充貴, 倉田博基, 寺西利治

    ナノ学会大会講演予稿集   19th   2021

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  • Synthesis and Optical Properties of C1-PtIn2 Plasmonic Nanoalloys

    TAKEKUMA Haruka, SATO Ryota, IIDA Kenji, KAWAWAKI Tokuhisa, HARUTA Mitsutaka, KURATA Hiroki, TERANISHI Toshiharu

    日本化学会春季年会講演予稿集(Web)   101st   2021

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  • Spontaneous formation and dynamic structural evolution of nanoparticle superstructure during the growth process of copper sulfide nanoparticles

    猿山雅亮, 中川芙美子, 高畑遼, 佐藤良太, 寺西利治

    日本化学会春季年会講演予稿集(Web)   101st   2021

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  • Size dependence of exciton-phonon couplings in lead halide perovskite nanocrystals

    張健一, 山田琢允, 田原弘量, 只野央将, 鈴浦秀勝, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   76 ( 2 )   2021

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  • High-order harmonic generation from semiconductor CdS nanocrystals: size dependence

    中川耕太郎, 佐成晏之, 佐藤駿丞, 佐藤駿丞, 猿山雅亮, 佐藤良太, 寺西利治, 廣理英基, 金光義彦

    日本物理学会講演概要集(CD-ROM)   76 ( 1 )   2021

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  • Observation of strong spin-orbit coupling induced Autler-Townes effect in CsPbBr3 nanocrystals

    湯本郷, 廣理英基, 関口文哉, 佐藤良太, 猿山雅亮, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   76 ( 2 )   2021

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  • Size dependence of defect introduction in CdTe nanoparticles

    高畑遼, 猿山雅亮, 坂本雅典, 山添誠司, 寺西利治

    分子科学討論会講演プログラム&要旨(Web)   15th   2021

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  • Measurement of Optical Stark Effect in Semiconductor Nanoparticles

    坂本実, 湯本郷, 中川耕太郎, 廣理英基, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   76 ( 2 )   2021

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  • High-order harmonic generation from CdS semiconductor nanocrystals: the nanocrystal size and excitation intensity dependence.

    中川耕太郎, 佐成晏之, 関口文哉, 佐藤駿丞, 佐藤駿丞, 猿山雅亮, 佐藤良太, 寺西利治, 廣理英基, 金光義彦

    日本物理学会講演概要集(CD-ROM)   76 ( 2 )   2021

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  • Creation of New-Type FePd3 Layered Alloy Derived from Elemental Miscibility of Third Element

    松本憲志, 佐藤良太, 立津慶幸, 寺西利治

    ナノ学会大会講演予稿集   19th   2021

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  • Strong spin-orbit coupling induces ultrafast nonlinear optical responses in CsPbBr3 perovskite nanocrystals

    湯本郷, 廣理英基, 関口文哉, 佐藤良太, 猿山雅亮, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   82nd   2021

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  • Formation of superstructures by self-assembly of nickel phosphide nanoparticles in solution phase

    中川芙美子, 猿山雅亮, 寺西利治

    日本化学会春季年会講演予稿集(CD-ROM)   100th   2020

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  • Photoluminescence and single photon emission property of lead halide perovskite nanocrystals

    張健一, 田原弘量, 山田琢允, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   75 ( 1 )   2020

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  • High harmonic generation from metal halide perovskite nanoparticles and its characteristics

    中川耕太郎, 佐成晏之, 佐藤駿丞, 佐藤駿丞, 佐藤良太, 猿山雅亮, 寺西利治, 廣理英基, 金光義彦

    日本物理学会講演概要集(CD-ROM)   75 ( 1 )   2020

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  • Synthesis and Plasmonic Properties of Pseudo-Coinage Alloy Nanoparticles

    TAKEKUMA Haruka, SATO Ryota, IIDA Kenji, KAWAWAKI Tokuhisa, TERANISHI Toshiharu

    日本化学会春季年会講演予稿集(CD-ROM)   100th   2020

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  • Synthesis and Magnetic Properties of Ternary Fe-Ni-Pd Alloy Nanoparticles

    金子諒太, 佐藤良太, 立津慶幸, 寺西利治

    日本化学会春季年会講演予稿集(CD-ROM)   100th   2020

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  • Synthesis and Plasmonic Properties of Pseudo-Coinage Alloy Nanoparticles

    竹熊晴香, 佐藤良太, 飯田健二, 川脇徳久, 治田充貴, 倉田博基, 寺西利治

    ナノ学会大会講演予稿集   18th   2020

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  • Formation of Superstructures by Self-assembly of Nickel Nanoparticles in Solution Phase

    中川芙美子, 猿山雅亮, 寺西利治

    ナノ学会大会講演予稿集   18th   2020

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  • Optical gain enhancement in CsPbI3 nanocrystals by the formation of asymmetric hot-biexcitons

    媚山悦企, 田原弘量, 廣理英基, 佐藤良太, 猿山雅亮, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   75 ( 2 )   2020

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  • Size dependence of photoluminescence fine structures in lead halide perovskite nanocrystals

    張健一, 田原弘量, 山田琢允, 廣理英基, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   75 ( 2 )   2020

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  • High harmonic generation from nanoparticles and selection rules for circularly polarized fields

    中川耕太郎, 佐成晏之, 関口文哉, 佐藤良太, 猿山雅亮, 寺西利治, 廣理英基, 金光義彦

    日本物理学会講演概要集(CD-ROM)   75 ( 2 )   2020

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  • Hot exciton interactions in CsPbI3 nanocrystals studied by double pump transient absorption spectroscopy

    媚山悦企, 田原弘量, 川脇徳久, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   75 ( 1 )   2020

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  • Size Separation and Optical Properties of Cadmium Chalcogenide Clusters

    高畑遼, 猿山雅亮, 坂本雅典, 山添誠司, 寺西利治

    ナノ学会大会講演予稿集   18th   2020

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  • Precise Separation and Optical Properties of Cadmium Chalcogenide Clusters

    高畑遼, 猿山雅亮, 坂本雅典, 寺西利治

    日本化学会春季年会講演予稿集(CD-ROM)   100th   2020

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  • ダブルポンプ過渡吸収分光によるCsPbBr3ナノ粒子のイオン化機構の解明

    小原慧一, 中原聡志, 田原弘量, 湯本郷, 川脇徳久, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   66th   ROMBUNNO.11p‐S223‐11   2019.2

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  • 微量第三元素の固溶性を駆動力とした新奇規則合金ナノ粒子の形成

    松本憲志, 佐藤良太, 立津慶幸, 寺西利治

    ナノ学会大会講演予稿集   17th   2019

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  • カチオン交換によるスピネル型Ni3Se4ナノ結晶の選択合成と酸素生成触媒活性

    猿山雅亮, KIM Sungwon, 坂本雅典, 寺西利治

    ナノ学会大会講演予稿集   17th   2019

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  • CsPbBr3ペロブスカイトナノ粒子からの高次高調波発生の観測

    中川耕太郎, 佐成晏之, 佐藤良太, 猿山雅亮, 寺西利治, 廣理英基, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   80th   2019

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  • CsPbI3ナノ粒子におけるダブルパルス励起の光学利得ダイナミクス

    媚山悦企, 田原弘量, 湯本郷, 川脇徳久, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   80th   2019

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  • 単一ナノ粒子分光によるペロブスカイトナノ粒子のエキシトン発光ダイナミクスの研究:粒子サイズ依存性

    正田宗二朗, 鎗田直樹, 田原弘量, 猿山雅亮, 川脇徳久, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   79th   ROMBUNNO.20a‐235‐8   2018.9

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  • 単一ペロブスカイトナノ粒子発光のブリンキングとフリッカリング

    鎗田直樹, 田原弘量, 猿山雅亮, 川脇徳久, 佐藤良太, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   73 ( 1 )   ROMBUNNO.23aK503‐6   2018.3

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  • CdSe/CdSナノ粒子におけるシェル励起コア発光ダイナミクスの研究

    正田宗二朗, 田原弘量, 鎗田直樹, 猿山雅亮, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   65th   ROMBUNNO.19a‐G204‐4   2018.3

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  • CsPbI3ナノ粒子の光学応答におけるホットバイエキシトン効果

    湯本郷, 田原弘量, 川脇徳久, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   65th   ROMBUNNO.17p‐F314‐4   2018.3

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  • HC(NH2)2PbBr3ペロブスカイトナノ粒子における励起子分子の再結合ダイナミクス

    鎗田直樹, 田原弘量, 猿山雅亮, 川脇徳久, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   65th   ROMBUNNO.19a‐G204‐8   2018.3

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  • CsPbBr3ナノ粒子のトリオン生成と表面処理

    中原聡志, 田原弘量, 湯本郷, 川脇徳久, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   65th   ROMBUNNO.19a‐G204‐7   2018.3

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  • Generation and Relaxation Dynamics of Charged Excitons in CsPbBr3 Nanocrystals

    Nakahara Satoshi, Tahara Hirokazu, Yumoto Go, Kawawaki Tokuhisa, Saruyama Masaki, Sato Ryota, Teranishi Toshiharu, Kanemitsu Yoshihiko

    Meeting Abstracts of the Physical Society of Japan   73 ( 0 )   1445 - 1445   2018

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    DOI： 10.11316/jpsgaiyo.73.1.0_1445

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  • Trion generation mechanism in lead halide perovskite nanocrystals

    Nakahara Satoshi, Tahara Hirokazu, Yumoto Go, Kawawaki Tokuhisa, Saruyama Masaki, Sato Ryota, Teranishi Toshiharu, Kanemitsu Yoshihiko

    Meeting Abstracts of the Physical Society of Japan   73 ( 0 )   992 - 992   2018

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    DOI： 10.11316/jpsgaiyo.73.2.0_992

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  • Influence of exciton-exciton interaction on optical responses of lead-halide perovskite nanocrystals

    Yumoto Go, Tahara Hirokazu, Kawawaki Tokuhisa, Saruyama Masaki, Sato Ryota, Teranishi Toshiharu, Kanemitsu Yoshihiko

    Meeting Abstracts of the Physical Society of Japan   73 ( 0 )   1446 - 1446   2018

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    DOI： 10.11316/jpsgaiyo.73.1.0_1446

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  • ハロゲン化鉛ペロブスカイトナノ粒子の荷電励起子・励起子分子ダイナミクス

    鎗田直樹, 田原弘量, 井原章之, 川脇徳久, 佐藤良太, 猿山雅亮, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   72 ( 2 )   ROMBUNNO.23pPSA‐65   2017.9

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  • Numerical simulation of photoacoustic phenomenon and quantitative image reconstruction for high-quality medical diagnosis with photoacoustic imaging

    36 ( 9 )   66 - 71   2017.9

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  • FAPbBr3ペロブスカイトナノ粒子の単一ドット分光:発光明滅と単一光子放出

    鎗田直樹, 田原弘量, 猿山雅亮, 川脇徳久, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   78th   ROMBUNNO.6p‐A501‐10   2017.8

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  • CsPb(Br1-xIx)3ナノ粒子のトリオン・バイエキシトンダイナミクス

    中原聡志, 田原弘量, 湯本郷, 川脇徳久, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   78th   ROMBUNNO.6p‐A501‐6   2017.8

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  • Fabrication of high-performance L10-FePd/α-Fe nanocomposite magnets with precisely controlled nanostructures

    Ryota Sato, Toshiharu Teranishi

    Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy   64 ( 7 )   347 - 354   2017.7

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    DOI： 10.2497/jjspm.64.347

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  • Multiexciton Recombination Dynamics in CsPbBr3 Perovskite Nanocrystals Revealed by Femtosecond Transient Absorption and Single Dot Spectroscopies

    N. Yarita, H. Tahara, T. Ihara, T. Kawawaki, R. Sato, M. Saruyama, T. Teranishi, Y. Kanemitsu

    The Conference on Lasers and Electro-Optics/Europe and the European Quantum Electronics (CLEO/Europe-EQEC 2017)   Part F81-EQEC 2017   2017.6

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  • 遷移金属リン化物ベースコア@シェルナノ粒子の合成と酸素生成触媒活性

    猿山雅亮, 坂本雅典, 秋山誠治, 山田太郎, 堂免一成, 寺西利治

    日本化学会春季年会講演予稿集(CD-ROM)   97th   ROMBUNNO.1B5‐41   2017.3

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  • CsPbBr3ペロブスカイトナノ粒子の高速光学応答:バイエキシトンとトリオン

    鎗田直樹, 田原弘量, 井原章之, 川脇徳久, 佐藤良太, 猿山雅亮, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   64th   ROMBUNNO.14a‐303‐5   2017.3

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  • 単一CdSe/CdSナノ粒子の励起子分子発光:クーロン相互作用による増強

    広重直, 井原章之, 猿山雅亮, 寺西利治, 金光義彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   64th   ROMBUNNO.15p‐E205‐14   2017.3

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  • Monodisperse and size-tunable PbS colloidal quantum dots via heterogeneous precursors

    Samuel Chan, Maning Liu, Kay Latham, Mitsutaka Haruta, Hiroki Kurata, Toshiharu Teranishi, Yasuhiro Tachibana

    Journal of Materials Chemistry C   5 ( 8 )   2182 - 2187   2017

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    DOI： 10.1039/c6tc05329g

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  • Carrier dynamics of semiconductor heterostructured nanoparticles

    猿山雅亮, 坂本雅典, 寺西利治

    光化学   47 ( 3 )   145‐151 - 151   2016.12

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  • Experimental Determination of Absorption Cross-Sections for Cesium Lead Halide Perovskite Nanocrystals

    N. Yarita, H. Tahara, T. Ihara, T. Kawawaki, R. Sato, T. Teranishi, Y. Kanemitsu

    2016 MRS Fall meeting   2016.11

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  • Enhancement of Biexciton Emission in Giant CdSe/CdS Nanocrystals Revealed by Single Dot Spectroscopy - Implications for Light-Emitting Device Efficiencies

    N. Hiroshige, T. Ihara, M. Saruyama, T. Teranishi, Y. Kanemitsu

    2016 MRS Fall meeting   2016.11

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  • 単一CdSe/CdSナノ粒子におけるカスケード発光分光:クーロン相互作用による励起子分子発光増大

    広重直, 井原章之, 猿山雅亮, 寺西利治, 金光義彦

    日本物理学会講演概要集(CD-ROM)   71 ( 2 )   ROMBUNNO.15pPSA‐39 - 1385   2016.9

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    DOI： 10.11316/jpsgaiyo.71.2.0_1385

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  • CsPbBr3ペロブスカイトナノ粒子の作製と光学特性

    鎗田直樹, 田原弘量, 井原章之, 川脇徳久, 佐藤良太, 猿山雅亮, 寺西利治, 金光義彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   77th   ROMBUNNO.15p‐A41‐4   2016.9

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  • Transformation of CdS nanocrystals into CdS/CdTe heterodimers through the partial anion exchange reaction

    Masaki Saruyama, Masanori Sakamoto, Toshiharu Teranishi

    Abstract of 13th International Conference on the Chemistry of Selenium and Tellurium   13th   2016.5

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  • CuInS2/CdSヘテロテトラポッドの光物性

    坂本雅典, 猿山雅亮, 岡野真人, 肖英紀, 木本浩司, 金光義彦, 金光義彦, 寺西利治

    固体・表面光化学討論会講演要旨集   34th   66‐67   2015.12

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  • Potential of Gold Nanoparticles for Photoacoustic Imaging Probe

    66 ( 10 )   725 - 730   2015.10

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  • Photo-induced Carrier Dynamics of CuInS2/CdS Tetrapod Nanocrystal

    M. Sakamoto, M. Okano, M. Saruyama, Y. -G. So, K. Kimoto, Y. Kanemitsu, T. Teranishi

    27th International Conference on Photochemistry (ICP2015)   2015.6

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  • Synthesis and Photo-induced Carrier Dynamics of CdS/CdTe Nanopencils Invited

    M. Sakamoto, M. Okano, M. Saruyama, Y. Kanemitsu, T. Teranishi

    2015 Korean-Japan Bilateral Symposium on Frontier Photoscience (2015KJFP)   2015.6

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  • Nanoplasmonics in Inorganic Nanoparticles Reviewed

    TERANISHI Toshiharu

    Nanotech France 2015   2015.6

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  • 無機ナノ粒子：精密構造制御からエネルギー材料応用まで Invited

    寺西 利治

    サイエンス＆テクノロジー講演会   2015.6

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  • CuInS2/CdSヘテロテトラポッドの光物性

    SAKAMOTO MASANORI, SARUYAMA MASAKI, OKANO MAKOTO, SO YEONG-GI, KIMOTO KOJI, KANEMITSU YOSHIHIKO, KANEMITSU YOSHIHIKO, TERANISHI TOSHIHARU

    ナノ学会大会講演予稿集   13th   44   2015.5

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  • Visible to Near-IR Nanoplasmonics in Inorganic Nanoparticles Invited

    TERANISHI Toshiharu

    227th ECS Meeting   2015.5

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  • 無機ナノ粒子：精密構造制御からエネルギー材料応用まで Invited

    寺西 利治

    早稲田大学高等研究所セミナーシリーズ   2015.3

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  • 無機ナノ粒子超構造の構築と機能 Invited

    寺西 利治

    分子研研究会   2015.3

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  • 無機ナノ粒子の特異界面機能の開拓 Invited

    寺西 利治

    第１回OCU物質科学フロンティアシンポジウム   2015.1

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  • Determination of a localized surface plasmon resonance mode of Cu7S4 nanodisks by plasmon coupling Invited

    L. Chen, M. Sakamoto, R. Sato, T. Teranishi

    FARADAY DISCUSSIONS   181   355 - 364   2015

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    DOI： 10.1039/c4fd00239c

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  • Carrier Density-dependent Plasmonic Properties of Inorganic Nanoparticles

    TERANISHI Toshiharu

    7th International Workshop on Advanced Materials Science and Nanotechnology   2014.11

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  • Structure-Dependent Photo-Induced Charge Separation in Type-II Semiconductor Heterodimers Invited

    TERANISHI Toshiharu

    Taishan Academic Forum Environment and Energy Materials   2014.11

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  • Nanoplasmonics in Inorganic Nanoparticles Invited

    TERANISHI Toshiharu

    Pioneers in Photonic Nanostructures and Nanophotonics   2014.11

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  • L1₀-FePd/α-Feナノコンポジット磁石の創製 (特集号 若手優秀ポスター発表賞特集記事)

    佐藤 良太, 寺西 利治

    ナノ学会会報 = The bulletin of the Society of Nano Science and Technology   13 ( 1 )   17 - 23   2014.10

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  • ヘテロ界面制御による高機能無機ナノ粒子の創製 Invited

    寺西 利治

    ナノインク懇話会   2014.10

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  • Selective Synthesis and Plasmonic Properties of Polyhedral Gold Nanoparticles (特集号 若手優秀ポスター発表賞特集記事)

    Wu Hsin-Lun, Sato Ryota, Teranishi Toshiharu

    ナノ学会会報 = The bulletin of the Society of Nano Science and Technology   13 ( 1 )   43 - 47   2014.10

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  • Photoacoustic properties of gold nanoparticles based on comprehensive measurements

    2014 ( 34 )   5 - 8   2014.9

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  • ナノ粒子元素ブロックの合成と特異界面物性 Invited

    寺西 利治

    第63回高分子討論会   2014.9

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  • 無機ナノ粒子のヘテロ界面制御と特異界面機能 Invited

    寺西 利治

    学振174委員会第48回研究会   2014.9

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  • Carrier Density-dependent Plasmonic Properties of Inorganic Nanoparticles Reviewed

    TERANISHI Toshiharu

    The XXVth IUPAC Symposium on Photochemistry   2014.7

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  • 有機－無機ハイブリッドナノ粒子の特異界面機能 Invited

    寺西 利治

    高分子・ハイブリッド材料研究センター2014PHyMシンポジウム   2014.6

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  • Loading Effects of Inorganic Nanoparticles as Cocatalysts on Photocatalytic Activity for Overall Water Splitting under Visible Light

    56 ( 3 )   187 - 191   2014.6

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  • Structure-Dependent Photo-Induced Charge Separation in Type-II Semiconductor Heterostructures Invited

    TERANISHI Toshiharu

    225th ECS Meeting   2014.5

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  • 30aCD-10 Photoluminescence Blinking of Single CdSe/CdS Dot-in-Rods : Simultaneous Measurement s of Lifetime and Polarization

    Ihara T., Sato R., Teranishi T., Kanemitsu Y.

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   779 - 779   2014.3

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  • 30aCD-11 Photoluminescence blinking of single core-shell nanoparticles : Excitation wavelength dependence of intensity and lifetime

    Ohno K., Ihara T., Sato R., Teranishi T., Kanemitsu Y.

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   779 - 779   2014.3

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  • Strongest pi-metal orbital coupling in a porphyrin/gold cluster system Invited

    Daisuke Tanaka, Yoko Inuta, Masanori Sakamoto, Akihiro Furube, Mitsutaka Haruta, Yeong-Gi So, Koji Kimoto, Ikutaro Hamada, Toshiharu Teranishi

    CHEMICAL SCIENCE   5 ( 5 )   2007 - 2010   2014

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    DOI： 10.1039/c3sc53460j

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  • Strongest pi-metal orbital coupling in a porphyrin/gold cluster system Invited

    Daisuke Tanaka, Yoko Inuta, Masanori Sakamoto, Akihiro Furube, Mitsutaka Haruta, Yeong-Gi So, Koji Kimoto, Ikutaro Hamada, Toshiharu Teranishi

    CHEMICAL SCIENCE   5 ( 5 )   2007 - 2010   2014

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  • Rigid Bidentate Ligands Focus the Size of Gold Nanoparticles

    12 ( 1 )   7 - 10   2013.12

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  • Photoluminescence blinking of single CdSe/CdS heterostructured nanoparticles : Correlation between lifetime and intensity

    Ohno K., Ihara T., Sato R., Teranishi T., Kanemitsu Y.

    Meeting abstracts of the Physical Society of Japan   68 ( 2 )   662 - 662   2013.8

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  • Single photon generation and photoluminescence blinking on a CdSe/CdS dot-in-rod structure

    Ihara T., Sato R., Teranishi T., Kanemitsu Y.

    Meeting abstracts of the Physical Society of Japan   68 ( 2 )   655 - 655   2013.8

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  • Charge transfer dynamics in type-II CdS/CdTe heteronanopencils

    Okano M., Sakamoto M., Teranishi T., Kanemitsu Y.

    Meeting abstracts of the Physical Society of Japan   68 ( 2 )   656 - 656   2013.8

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  • 27pEJ-11 Time-Resolved Photoluminescence Spectroscopy on a Single CdSe/CdS Dot-in-Rod Structure

    Ihara T., Sato R., Teranishi T., Kanemitsu Y.

    Meeting abstracts of the Physical Society of Japan   68 ( 1 )   814 - 814   2013.3

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  • Characterization of photoacoustic signal of plasmonic gold nanoparticles Reviewed

    Miya Ishihara, Takeshi Hirasawa, Ryota Sato, Shinpei Okawa, Toshiharu Teranishi

    Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest   2013

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  • 金クラスターを内包したポルフィリン正六面体の合成と特異光学特性 Reviewed

    寺西利治, 田中大介, 坂本雅典

    第61回高分子討論会 ,名古屋   2012.9

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  • ZnS-Auヘテロ接合ナノ粒子の合成とそのキャリアダイナミクスの解明 Reviewed

    坂本 雅典, 池田 飛展, 古部 昭広, 寺西 利治

    光化学討論会 ,東京工業大学 大岡山キャンパス   2012.9

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  • Size Control of Gold Nanoparticles Using Rigid Bidentate Ligands Reviewed

    坂本 雅典, 田中大介, 寺西利治

    Ｇｏｌｄ２０１２ ,京王プラザホテル   2012.9

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  • 20pFJ-8 Micro-photoluminescence excitation spectroscopy on low-temperature excitons in hetero-structured nanocrystals

    Ihara T., Sebastien Laurent, Sato R., Teranishi T., Kanemitsu Y.

    Meeting abstracts of the Physical Society of Japan   67 ( 2 )   707 - 707   2012.8

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  • Near IR Nanoplasmonics in Inorganic Nanoparticles Reviewed

    Teranishi, T

    XXIV IUPAC Symposium on Photochemistry ,Coimbra, Portugal   2012.7

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    DOI： 10.1541/ieejeiss.132.1251

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  • Designed Synthesis of Monodisperse Pd/Pt Core/Shell Nanoparticles with Precisely-Tuned PtAtomic Layers and Their CO Adsorption Properties Reviewed

    Ryota SATO, Shin-ichi ITO, Keiichi TOMISHIGE, Toshiharu TERANISHI

    International Association of Colloid and Interface Scientists 2012 ,Sendai International Center, Japan   2012.5

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  • Ultrafast Charge Separation/Recombination of Porphyrin Face-Coordinated Au Cluster Reviewed

    坂本 雅典, 田中大介, 寺西利治

    ＩＡＣＩＳ ,仙台国際センター   2012.5

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  • Pt原子層数を精密制御した単分散コアシェル型ナノ粒子の戦略的合成とCO吸着特性 Reviewed

    佐藤 良太, 伊藤 伸一, 冨重 圭一, 寺西 利治

    日本化学会第92春季年会 ,慶應義塾大学 日吉キャンパス、矢上キャンパス   2012.3

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  • ポルフィリン平面配位金クラスターにおける高速光電子移動 Reviewed

    坂本 雅典, 田中大介, 寺西利治

    日本化学会第93春季年会(2013) ,慶應義塾大学 日吉キャンパス、矢上キャンパス   2012.3

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  • ナノ構造制御によるL10-FePd/&alpha;-Feナノコンポジット磁石の高性能化と交換結合相互作用の直接観測 Reviewed

    大嶋 翔, 佐藤 良太, 寺西 利治

    日本化学会第92春季年会 ,慶應義塾大学 日吉キャンパス、矢上キャンパス   2012.3

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  • 交換相互作用をもつFeCo系ナノコンポジット磁石の創成 Reviewed

    小幡 美絵, 佐藤良太, 寺西利治

    日本化学会第92春季年会 ,慶應義塾大学 日吉キャンパス、矢上キャンパス   2012.3

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  • CdS/CdTeヘテロダイマーナノ粒子の高密度キャリアダイナミクス

    TAGUCHI SEIJI, SARUYAMA MASAKI, TERANISHI TOSHIHARU, KANEMITSU YOSHIHIKO

    日本物理学会講演概要集   67 ( 1 )   826 - 826   2012.3

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  • Dynamics of charge separation and multicarrier recombinaiton in CdS/CdTe heterodimer nanocrystals

    S. Taguchi, M. Saruyama, T. Teranishi, Y. Kanemitsu

    American Physical Society March Meeting 2012 (APS 2012)   2012.2

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  • 常温導電性金属ナノインクの合成と常温印刷有機デバイスへの展開

    金原正幸, 竹谷純一, 植村隆文, 村田英幸, 瀧宮和夫, 寺西利治, 寺西利治

    日本化学会講演予稿集   92nd ( 1 )   2012

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  • 常温導電性金属ナノインクの合成と常温印刷有機デバイスへの展開

    金原正幸, 竹谷純一, 植村隆文, 村田英幸, 瀧宮和夫, 寺西利治, 寺西利治

    日本化学会講演予稿集   92nd ( 3 )   2012

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  • CdS/CdTeヘテロダイマーナノ粒子の超高速キャリアダイナミクス

    TAGUCHI SEIJI, SARUYAMA MASAKI, TERANISHI TOSHIHARU, KANEMITSU YOSHIHIKO

    日本物理学会講演概要集   66 ( 2 )   724 - 724   2011.8

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  • Exciton and Biexciton Dynamics in CdSe Nanospheres and Nanorods: Shape Dependence

    S. Taguchi, M. Saruyama, T. Teranishi, Y. Kanemitsu

    24th International Conference on Amorphous and Nanocrystalline Semiconductors (ICANS 24)   2011.8

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  • CdS/CdTeヘテロダイマー量子ドットの超高速電荷移動ダイナミクス

    TAGUCHI SEIJI, SARUYAMA MASAKI, TERANISHI TOSHIHARU, KANEMITSU YOSHIHIKO

    応用物理学会学術講演会講演予稿集(CD-ROM)   72nd   ROMBUNNO.1A-K-9   2011.8

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  • CdSナノ粒子のアニオン交換反応によるCdS/CdTeヘテロ構造ナノ粒子の合成

    SARUYAMA MASAKI, SO YEONG-GI, KIMOTO KOJI, TERANISHI TOSHIHARU

    日本化学会講演予稿集   91st ( 3 )   948   2011.3

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  • Pt担持CdSナノ粒子光触媒の構造制御

    KANAKUBO RYO, SARUYAMA MASAKI, KANEHARA MASAYUKI, TERANISHI TOSHIHARU

    日本化学会講演予稿集   91st ( 3 )   864   2011.3

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  • タイプII型新規半導体ヘテロ構造CuInS2/CdSナノ粒子の合成

    INOUE KOKI, SARUYAMA MASAKI, TERANISHI TOSHIHARU

    日本化学会講演予稿集   91st ( 3 )   946   2011.3

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  • 光・電子材料 無機ナノ粒子を用いた局在表面プラズモン共鳴波長制御

    江口 美陽, 金原 正幸, 寺西 利治

    未来材料   11 ( 2 )   40 - 45   2011.2

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  • Photo-induced electron transfer reactions at semiconductor quantum dot interfaces Reviewed

    Aisea Veamatahau, Jiang Bo, Satoshi Makuta, Khor Chong Yaw, Masayuki Kanehara, Toshiharu Teranishi, Yasuhiro Tachibana

    SOLAR HYDROGEN AND NANOTECHNOLOGY VI   8109   2011

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  • CdSeナノ粒子における励起子分子の形状依存性

    TAGUCHI SEIJI, SARUYAMA MASAKI, TERANISHI TOSHIHARU, KANEMITSU YOSHIHIKO

    日本物理学会講演概要集   65 ( 2 )   678 - 678   2010.8

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  • Contact Resistance Reduction by Porphyrin Based Self-assembled Monolayer in Pentacene Thin-film Transistors

    AZUMA Yasuo, SUZUKI Taiyo, YAMADA Yasuyuki, TANAKA Kentaro, KANEHARA Masayuki, TERANISHI Toshiharu, MAJIMA Yutaka

    IEICE technical report   110 ( 100 )   7 - 12   2010.6

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    Bottom-contact type pentacene thin-film transitors with Au electrode treantment by porphyrine self-assembled monolayers (SAMs) are fabricated for contact resistance reduction. Polarized optical microscope images show that pentacene grains on the Au electrode with SAMs treatments are 5 times larger than those without SAMs treatments. Contact resistances of pentacene TFT with SAMs treatments, which are evaluated by Transfer line method, are approximately a half of those without SAMs treatments.

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  • Tunneling Resistance of Double Barrier Tunneling Junction with π-Conjugated Ligand Protected Au nanopartcles

    MINAGAWA Yoshihiro, KANO Shinya, AZUMA Yasuo, KANEHARA Masayuki, TERANISHI Toshiharu, MAJIMA Yutaka

    IEICE technical report   110 ( 100 )   1 - 5   2010.6

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    We aim to fabricate single electron devices which work at room temperature. In double barrier tunneling junctions, tunneling resistance is exponentially proportional to distance, the device structure has to be controlled at subnanometer scale. We have observed clear Coulomb blockades in I-V characteristics by scanning tunneling spectroscopy. Here, Π-conjugated ligand protected Au nanoparticles are used as a center electrode of double barrier tunneling junctions. Tunneling resistance between Au nanoparticles and Au(111) substrate is estimated as 2.8 GΩ from set point current dependence.

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  • 塩化物イオンと界面活性剤によるCdカルコゲニドナノ粒子の構造変態

    猿山雅亮, 金原正幸, 寺西利治

    ナノ学会大会講演予稿集   8th   91   2010.5

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  • 塩化物イオンと界面活性剤を用いたCdカルコゲニドナノ粒子の構造変態

    猿山雅亮, 金原正幸, 寺西利治

    日本化学会講演予稿集   90th ( 3 )   672   2010.3

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  • CdSeナノ粒子における量子化オージェ再結合:サイズ依存性

    田口誠二, 猿山雅亮, 寺西利治, 金光義彦

    日本物理学会講演概要集   65 ( 1 )   732 - 732   2010.3

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  • CdSeナノロッドの量子化オージェ再結合ダイナミクス

    田口誠二, 猿山雅亮, 寺西利治, 金光義彦

    光物性研究会論文集   21st   318 - 321   2010

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  • Precise structural control and optical properties of plasmonic nanoparticles

    Function & materials   29 ( 11 )   21 - 26   2009.11

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  • 塩化物イオンと界面活性剤によるCdカルコゲニドナノ粒子の構造変態

    猿山雅亮, 金原正幸, 寺西利治

    コロイドおよび界面化学討論会講演要旨集   62nd   355   2009.8

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  • 塩化物イオンと界面活性剤によるCdカルコゲニドナノ粒子の構造変態

    猿山雅亮, 金原正幸, 寺西利治

    ナノ学会大会講演予稿集   7th   203   2009.5

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  • Photocatalytic performance of CdS nanoparticles dispersed on TiO&lt;sub&gt;2&lt;/sub&gt;

    荻巣清徳, 高鍋和広, LU Daling, 猿山雅亮, 池田飛展, 金原正幸, 寺西利治, 堂免一成

    日本化学会講演予稿集   89th ( 1 )   552   2009.3

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  • Chloride Ions‐Induced Structural Transformation of Cd Chalcogenide Nanoparticles

    猿山雅亮, 金原正幸, 寺西利治

    日本化学会講演予稿集   89th ( 1 )   172   2009.3

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  • 30aTE-10 Conductance measurement of single porphyrin molecule bridging between Au electrodes

    Takahashi T, Kiguchi M, Kanehara M, Teranishi T, Murakoshi K

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   921 - 921   2009.3

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  • CdSナノロッドにおける高密度励起効果とオージェ再結合への構造揺らぎの影響

    上田哲寛, 太野垣健, 金光義彦, 猿山雅亮, 乾大樹, 寺西利治

    日本物理学会講演概要集   64 ( 1 )   719 - 719   2009.3

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  • Observation of Shuttle Current ef in Coulomb Blockade Electron Shuttle Device

    KOBAYASHI Norihiro, AZUMA Yasuo, KANEHARA Masayuki, TERANISHI Toshiharu, CHORLEY Simon, PRANCE Jonathan, SMITH Charles G., MAJIMA Yutaka

    IEICE technical report   108 ( 387 )   33 - 38   2009.1

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    Coulomb blockade electron shuttle phenomena through Au nanodot have been observed under a nanomechanical vibration of Au nanodot on cantilever that consists of scanning tunneling microscopy probe/vacuum/Au nanodot/alkanedithiol/cantilever. In the probe tunneling current-distance characteristics under the nanomechanical vibration, a constant probe current of ef has been observed as a plateau region, where f is an eigenfreqency of the cantilever. The quantized tunneling current ef is explained as one by one single-electron transport per cycle of operation in nanomechanical Coulomb blockade electron shuttle. The plateau region of chemisorbed Au nanodot is 0.35nm which is longer than that of physisorbed Au nanodot. We discuss that what difference between chemisorbed Au nanodot and physisorbed Au nanodot effect the results.

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  • Seed‐mediated成長法を用いた金属硫化物ヘテロ構造ナノ粒子の合成

    猿山雅亮, 金原正幸, 寺西利治

    ナノ学会会報   7 ( 1 )   21 - 27   2008.10

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  • Crystal structural transformation and magnetic properties of FePt nanoparticles

    46 ( 10 )   508 - 523   2008.10

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  • Syntheses of cadmium chalcogenide semiconductor nanoparticles

    KANEHARA Masayuki, TERANISHI Toshiharu

    Photochemistry   39 ( 2 )   118 - 120   2008.8

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  • 無機・金属 異方性相分離無機ナノ粒子―合成と機能

    寺西利治, 猿山雅亮, 和地晃矢子, 中谷昌史

    未来材料   8 ( 5 )   22 - 29   2008.5

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  • 硫化CdPdヘテロ構造ナノ粒子の合成とキャラクタリゼーション

    猿山雅亮, 中谷昌史, 金原正幸, 寺西利治

    ナノ学会大会講演予稿集   6th   247   2008.5

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  • 異方性相分離硫化CdCuナノどんぐりの合成と構造解析

    乾大樹, 猿山雅亮, 中谷昌史, 金原正幸, 寺西利治

    日本化学会講演予稿集   88th ( 1 )   434   2008.3

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  • 硫化CdPdヘテロ構造ナノ粒子の合成とキャラクタリゼーション

    猿山雅亮, 中谷昌史, 金原正幸, 寺西利治

    日本化学会講演予稿集   88th ( 1 )   433   2008.3

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  • Inorganic Nanoparticles with Heterojunction Structures

    TERANISHI Toshiharu

    49 ( 5 )   321 - 326   2007.8

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  • 硫化PdCoPdナノピーナッツの合成とキャラクタリゼーション

    猿山雅亮, 中谷昌史, 金原正幸, 寺西利治

    ナノ学会大会講演予稿集   5th   133   2007.5

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  • 硫化PdCoPdナノピーナッツの合成とキャラクタリゼーション

    猿山雅亮, 中谷昌史, 金原正幸, 寺西利治

    日本化学会講演予稿集   87th ( 1 )   388   2007.3

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  • 異方性相分離硫化CoPdナノ粒子の合成とキャラクタリゼーション

    猿山雅亮, 中谷昌史, 金原正幸, 寺西利治

    コロイドおよび界面化学討論会講演要旨集   59th   354   2006.8

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  • 微細金ナノ粒子超格子の創製戦略

    寺西 利治, 金原 正幸

    表面   44 ( 8 )   303 - 316   2006.8

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  • Observation of a Single Electron on a Alkanethiol-Protected Au Nanodot in a Double-barrier Tunneling Structure by Noncontact Atomic-Force Spectroscopy

    AZUMA Yasuo, KANEHARA Masayuki, TERANISHI Toshiharu, MAJIMA Yutaka

    Technical report of IEICE. OME   106 ( 37 )   31 - 32   2006.5

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  • Direct observation of ferromagnetic spin polarization in gold nanoparticles (vol 93, pg 116801, 2004)

    Y Yamamoto, T Miura, T Teranishi, H Hori, M Suzuki, N Kawamura, H Miyagawa, T Nakamura, K Kobayashi

    PHYSICAL REVIEW LETTERS   96 ( 13 )   2006.4

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  • 単一アルカンチオール保護Auナノ微粒子上におけるクーロンステアケースの観察

    松井太郎, 東康男, 安武裕輔, 金原正幸, 寺西利治, 真島豊

    応用物理学関係連合講演会講演予稿集   53rd ( 3 )   1309   2006.3

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  • 28pSC-12 Structural and magnetic changes of FePt nanoparticles by exposure to hydrogen

    Yamauchi Miho, Inagaki Yuji, Kitagawa Hiroshi, Nakaya Masafumi, Teranishi Toshiharu

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   482 - 482   2006.3

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  • Effect of high pressure hydrogen on crystal structural transformation of FePt nanoparticles at low temperature Reviewed

    M. Nakaya, M. Kanehara, M. Yamauchi, H. Kitagawa, T. Teranishi

    INTERMAG 2006 - IEEE International Magnetics Conference   466   2006

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    DOI： 10.1109/INTMAG.2006.376190

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  • Alkanethiol保護Auナノ微粒子を用いた二重トンネル接合におけるトンネル抵抗比の検討

    松井太郎, 東康男, 安武裕輔, 寺西利治, 真島豊

    第5回SORSTジョイントシンポジウム講演要旨集 有機導電材料と電子伝達制御 平成18年   73   2006

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  • Size control and magnetic properties of FePt nanoparticles Reviewed

    M. Nakaya, T. Teranishi

    INTERMAG ASIA 2005: Digests of the IEEE International Magnetics Conference   343-   2005

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  • Desirable Patterning of Metal Nanoparticles and Application to Nanodevices

    TERANISHI Toshiharu

    Journal of the Surface Science Society of Japan   25 ( 12 )   761 - 767   2004.12

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  • Structural Control of Metal Nanoparticles and Application to Nanodevices (2)

    TERANISHI Toshiharu

    Materia Japan   43 ( 8 )   673 - 679   2004.8

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  • 27aPS-57 Transport measurement of superlattice packed metal nanoparticles

    Yamamoto Y, Sakai T, Shirakawa M, Iwamoto T, Teranishi T, Hori H

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   448 - 448   2004.3

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  • 金属ナノ粒子の自在自己組織化

    寺西 利治, 金原 正幸

    ナノ学会会報   2 ( 1 )   9 - 16   2003.12

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  • Structural change of Pd/Pt bimetallic nanoparticle under hydrogen pressure

    Kobayashi H., Yamauchi M., Ikeda R., Teranishi T., Bando Y., Kitagawa H.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   879 - 879   2003.8

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  • ^2H NMR spin-lattice relaxation times of deuterium absorbed in the polymer-protected Pd nanoparticle

    Yamauchi M., Ikeda R., Hashi K., Goto A., Shimizu T., Bndo Y., Teranishi T., Kitagawa H.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   879 - 879   2003.8

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  • Size dependcnce of magnctic properties of Dodecanethiol-protected Au nanoparticles

    Itaya S., Iwamoto T., Nakae Y., Miura T., Yamamoto Y., Teranishi T., Hori H.

    Meeting abstracts of the Physical Society of Japan   58 ( 1 )   470 - 470   2003.3

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  • Application of the magnetic metal nanoparticles for the magnetic memory II

    Nakae Y., Iwamoto T., Sakai T., Teranishi T., Yamamoto Y., Hori H.

    Meeting abstracts of the Physical Society of Japan   58 ( 1 )   416 - 416   2003.3

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  • Magnetic property and LB monolayer fabrication of FePt nano-particles

    TSUCHIYA Y., ITOH K., TERANISHI T., SHIMIZU T., MIYAKE M.

    26   287 - 287   2002.9

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  • Hydrogen absorption behavior of Pt group nanoparticles

    Yamauchi Miho, Isobe Yuko, Kitagawa Hiroshi, Ikeda Ryuichi, Teranishi Toshiharu, Miyake Mikio

    Meeting abstracts of the Physical Society of Japan   57 ( 2 )   812 - 812   2002.8

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  • Nano-particle applies for magnetic memory.

    Nakae Y., Miura T., Iwamoto T., Teranishi T., Yamamoto Y., Hori H.

    Meeting abstracts of the Physical Society of Japan   57 ( 2 )   406 - 406   2002.8

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  • 24aXR-4 Hydrogen Behavior to Polymer-Protected Pd Nanoparticles

    Yamauchi Miho, Ikeda Ryuichi, Teranishi Toshiharu, Miyake Mikio

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   878 - 878   2002.3

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  • 27pYL-3 Magnetic properties of noble metal nanoparticles protected with polymer

    Yamamoto Y., Miura T., Nakae Y., Teranishi T., Hori H., Nishiyama K., Nagamine K.

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   458 - 458   2002.3

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  • Au微粒子のメスバウアー分光

    小林康浩, 瀬戸誠, 北尾真司, 春木理恵, 寺西利治

    KURRI KR   ( 74 )   218 - 220   2002.3

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  • メスバウアー分光による金微粒子の研究 核から物性を見る

    小林康浩, 瀬戸誠, 北尾真司, 春木理恵, 寺西利治

    京都大学原子炉実験所学術講演会報文集   36 ( 386 )   23 - 26   2002.1

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  • Recoilless Fraction on ^<197>Au Moessbauer Study of Au Nanoparticle

    Kobayashi Y, Seto M, Kitao S, Haruki R, Teranishi T

    Meeting abstracts of the Physical Society of Japan   56 ( 2 )   748 - 748   2001.9

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  • Size Dependence of the Magnetization in Au Nano-particles

    Miura T., Nakae Y., Ichinose R., Teranishi S., Yamamoto Y., Miyake M., Hori H.

    Meeting abstracts of the Physical Society of Japan   56 ( 2 )   296 - 296   2001.9

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  • ESR Research on Magnetism of Surface and inside in Pd/Ni Nano-particle

    Hori H., Nakae Y., Miura T., Toki K., Yamamoto Y., Yamada S., Teranishi T., Miyake M.

    Meeting abstracts of the Physical Society of Japan   56 ( 1 )   379 - 379   2001.3

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  • ^<197>Au Moessbauer Study of Au Nanoparticle

    Kobayashi Y, Seto M, Kitao S, Haruki R, Teranishi T

    Meeting abstracts of the Physical Society of Japan   56 ( 1 )   808 - 808   2001.3

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  • ESR study of the size dependence in Pt nanoparticles

    Kamei K., Taki M., Miura T., Sasaki T., Yamamoto Y., Yamada S., Teranishi T., Miyake M., Hori H.

    Meeting abstracts of the Physical Society of Japan   56 ( 1 )   379 - 379   2001.3

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  • Auナノ微粒子の197Auメスバウアー分光における無反跳分率

    小林康浩, 瀬戸誠, 北尾真司, 春木理恵, 寺西利治

    日本物理学会2001年秋期大会   2001

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  • Size Dependence of the Magnetization in Pt Nano-particles.

    Miura T., Nakae Y., Kamei K., Yamamoto Y., Kikutani Y., Yamada S., Teranishi S., Miyake M., Hori H.

    Meeting abstracts of the Physical Society of Japan   55 ( 2 )   359 - 359   2000.9

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  • The ESR study in ultra-fine particle of Pt alloys

    Taki Makoto, Sasaki Takahiko, Miura Takayuki, Toki Kazutaka, Teranishi Toshiharu, Miyake Mikio, Yamamoto Yoshiyuki, Kikutani Tomoyuki, Yamada Shouji, Hori Hidenobu

    Meeting abstracts of the Physical Society of Japan   55 ( 2 )   360 - 360   2000.9

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  • Size Dependence of the Magnetic Moment in Au Nano-particles.

    Nakae Y., Teranishi T., Toki K., Miyake M., Taki M., Kikutani T., Yamamoto Y., Yamada S., Hori H.

    Meeting abstracts of the Physical Society of Japan   55 ( 1 )   379 - 379   2000.3

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  • Origin of the Magnetism on Nano-Particles

    Hori Hidenobu, Teranishi Toshiharu, Sasaki Takahiko, Yamamoto Yoshyuki, yamada shoji, Nojiri Hiroyuki, Motokawa Mitsuhiro

    Meeting abstracts of the Physical Society of Japan   55 ( 1 )   329 - 329   2000.3

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  • 24pYQ-13 Spin polazization and correlation in Pd and Au nano-particle

    Nakae Y, Seino Y, Teranishi T, Miyake M, Yamada S, Hori H

    Meeting abstracts of the Physical Society of Japan   54 ( 2 )   346 - 346   1999.9

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  • 28p-D-5 ESR Measurements on Pd and Pd/3d-metal Alloying Nano-particles

    Hori H., Seino Y., Nakae Y., Kagemoto N., Teranishi T., Miyake M., Yamada S., Koyama K., Nojiri H., Motokawa M.

    Meeting abstracts of the Physical Society of Japan   54 ( 1 )   500 - 500   1999.3

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  • The Magnetization of Ultra-fine Pd particles.

    SEINO Y., KOBAYASHI M., NAKAE Y., TERANISHI T., MIYAKE M., YAMANDA S., HORI H.

    Meeting abstracts of the Physical Society of Japan   53 ( 2 )   506 - 506   1998.9

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  • Nonlinear ESR Absorption in Ultra-fine Alloying particle System of Pd/Ni

    SEINO Y., NUNOMURA N., TERANISHI T., HURUSAWA M., MIYAKE M., YAMADA S., HORI H.

    Meeting abstracts of the Physical Society of Japan   53 ( 1 )   329 - 329   1998.3

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  • The ESR Study in Ultra-fine Particles of Pd/Ni Alloys

    NUNOMURA N., SEINO Y., TERANISHI T., FURUSAWA M., MIYAKE M., YAMADA S., NOJIRI H., MOTOKAWA H., HORI H.

    Meeting abstracts of the Physical Society of Japan   53 ( 1 )   493 - 493   1998.3

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  • Synthesis and Magnetic Properties of Monodispersed Pd Nanoparticles Covered with Ni

    TERANISHI T., HORI H., MIYAKE M.

    Journal of Magnetics Society of Japan   21 ( 10 )   1193 - 1198   1997.10

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    Monodispersed Pd nanoparticles with a mean diameter of 25A corresponding to the "magic atom number"of 561 atoms (five-shell nanoparticles) and with mean diameters of less than 25A (22 and 23A) were success-fully synthesized. Two broad absorption peaks corresponding to ΔS = 1 and 2, and a sharp one with ΔS = 1, were observed in the ESR spectra of Pd nanoparticles, which indicates that the five-shell Pd nanoparticles with the magic number have an electron-closed shell, that is, they are in spin-singlet state. Ni ions were reduced to Ni atoms in the presence of Pd nanoparticles, to produce Ni-covered Pd nanoparticles. Their magnetic moment was abnormally increased by increasing the number of Ni atoms covering the Pd nano-particles, as if almost all the atoms consisting of the nanoparticles were Ni atoms.

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    Other Link： http://dl.ndl.go.jp/info:ndljp/pid/10463688

  • 8a-YG-2 Pd/Ni超微粒子合金の電子状態と磁性

    堀 秀信, 寺西 利治, 布村 紀男, 森下 剛, 清野 宜秀, 山田 省二, 戸嶋 直樹, 三宅 幹夫

    日本物理学会講演概要集   52 ( 2 )   541 - 541   1997.9

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  • 6a-YG-4 ESR Study in Ultra Fine Metalic Pd/Ni Particles

    Nunomura N., Teranishi T., Morishita T., Furusawa M., Miyake M., Yamada S., Hori H.

    Meeting abstracts of the Physical Society of Japan   52 ( 2 )   561 - 561   1997.9

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  • 高分子による表面保護を利用した金属ナノ粒子の粒径制御

    寺西 利治, 三宅 幹夫

    表面   35 ( 8 )   439 - 452   1997.8

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  • Promotion Effect of Lanthanoid Ions on Catalytic Activity of Ultrafine Palladium Particles

    TERANISHI T., MIYAKE M.

    ( 30 )   242 - 243   1997.5

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  • 29p-G-5 Magnetization and Electron Spin Resonace in Ultra Metallic Particles

    Nunomura N, Teranishi T, Furusawa M, Miyake M, Yamada S, Narumi Y, Kindo K, Hori H

    Meeting abstracts of the Physical Society of Japan   52 ( 1 )   350 - 350   1997.3

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  • Magnetization and Electron Spin Resonance in Ultra fine metallic particles

    Nunomura N., Hori H., Furusawa M., Teranishi T., Miyake M., Yamada S.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1996 ( 2 )   629 - 629   1996.9

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  • Study on Interaction between Ultrafine Palladium Particles and Lanthanoid Ions Using Photoelectron Spectroscopy

    TERANISHI T., IWAMOTO M., MIYAKE M., TOSHIMA N.

    ( 28 )   336 - 337   1996.5

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  • T. Teranishi, K. Nakata, M. Miyake, and N. Toshima, Promotion Effect of Polymer-Immobilized Neodymium Ions on Catalytic Activity of Ultrafine Particles

    Toshiharu Teranishi, Ken Nakata, Mikio Miyake, Naoki Toshima

    <i>Chem. Lett.</i>   1996 ( 4 )   277 - 278   1996

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  • Promotion Effect of Lanthanoid Complexes on Catalytic Activity of Palladium Clusters

    TERANISHI T., MIYAKE M., NAKATA K., TOSHIMA N.

    ( 26 )   252 - 253   1995.5

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  • DIRECT OXIDATION OF BENZENE BY ELECTRON-TRANSFER IN A MULTI-FUNCTIONALIZED CHELATE RESIN SYSTEM

    T TERANISHI, N TOSHIMA

    JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS   1995 ( 6 )   979 - 985   1995.3

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  • ESR measurement of ultra fine Pd particles

    Hori H, Nunomura N, Miyake M, Teranishi T, Kakeya K, Kindo K, Hurusawa M, Yamada S

    Meeting Abstracts of the Physical Society of Japan   1995 ( 0 )   258 - 258   1995

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Presentations

  • 元素置換反応が拓くナノ物質科学 Invited

    寺西利治

    第14回低次元系光機能材料研究会サマーセミナー  2025.9 

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    Event date： 2025.9

    Language：Japanese   Presentation type：Public lecture, seminar, tutorial, course, or other speech  

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  • Synthesis and Visible-Plasmonic Properties of Intermetallic Nanoparticles Invited

    Toshiharu Teranishi

    33rd International Materials Research Congress  2025.8 

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    Event date： 2025.8

    Language：English   Presentation type：Oral presentation (invited, special)  

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  • Potential of Ion Exchange Reactions in Forming Unprecedented Ionic Nanostructures Invited

    Toshiharu Teranishi

    Gordon Research Conference  2024.7 

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    Event date： 2024.6 - 2024.7

    Language：English   Presentation type：Oral presentation (invited, special)  

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  • Transformation and Advanced Properties of Isolated and Assembled Ionic Nanocrystals

    Toshiharu Teranishi

    2024.4 

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    Event date： 2024.4

    Language：English   Presentation type：Symposium, workshop panel (nominated)  

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  • 元素置換反応が拓くナノ物質科学 Invited

    寺西利治

    電気化学会第91回大会  2024.3 

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    Event date： 2024.3

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

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  • 元素置換反応が拓くナノ物質科学 Invited

    寺西利治

    大阪大学ナノ理工学人材育成コンソーシアム2023ナノ理工学セミナー  2023.10 

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    Event date： 2023.10

    Language：Japanese   Presentation type：Public lecture, seminar, tutorial, course, or other speech  

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  • 近赤外プラズモニクスの開拓と水素生成触媒への展開 Invited

    寺西利治

    日本化学会第101春季年会中長期企画（人工光合成）  2021.3 

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    Event date： 2021.3

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

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  • 元素置換による新奇プラズモニック合金ナノ粒子の合成 Invited

    寺西利治

    第18回プラズモニック化学シンポジウム  2020.7 

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    Event date： 2020.7

    Language：Japanese   Presentation type：Symposium, workshop panel (nominated)  

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  • ナノ仮晶化学：新しいナノ結晶の作り方 Invited

    寺西 利治

    第3回OCU物質科学フロンティアシンポジウム  2017.1 

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  • 金ナノ粒子を用いたactivatable光音響イメージングプローブの開発 Invited

    寺西 利治

    レーザー学会第37回年次大会  2017.1 

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  • Anisotropic Assembly of Nanoparticles for Photoenergy Conversion Invited

    TERANISHI Toshiharu

    JSCC 67th Symposium  2017.9 

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  • ナノ粒子が拓く科学の世界 Invited

    寺西 利治

    第65回知の拠点セミナー  2017.8 

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  • Anisotropic Assembly of Nanoparticles for Photoenergy Conversion Invited International conference

    TERANISHI Toshiharu

    The 2nd Japan-US Bilateral Meeting on Coordination Chemistry  2017.9 

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  • Charge Separation in Heterostructured Nanoparticles Invited International conference

    TERANISHI Toshiharu

    PacifiChem 2015  2015.12 

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  • ヘテロ構造ナノ粒子における光誘起電荷分離 Invited

    寺西 利治

    第2回OCU物質科学フロンティアシンポジウム  2016.1 

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  • Porphyrin-Capped Au Clusters as Building Blocks for Energy Conversion Invited International conference

    TERANISHI Toshiharu

    229th ECS Meeting  2016.5 

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  • Formation of Novel Nanocrystals by Element Replacement Invited International conference

    TERANISHI Toshiharu

    ISCA Japan Workshop  2016.6 

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  • ナノ仮晶化学：元素置換によるナノ結晶の構造変換

    寺西 利治

    nano tech 2016  2016.1 

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  • Visible to NIR Nanoplasmonics in Inorganic Nanocrystals Invited International conference

    TERANISHI Toshiharu

    SPIRITS International Symposium  2016.2 

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  • 無機ナノ粒子：設計の重要性と偶発の面白さ Invited

    寺西 利治

    日本セラミックス協会資源・環境関連材料部会講演会  2016.10 

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  • 原子を集めて創る小さい金属 Invited

    寺西 利治

    宇治キャンパス公開特別講演会  2016.10 

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  • Nano-pseudomorphic Chemistry: Epochal Structural Transformation of Nanocrystals by Element Replacement Invited International conference

    TERANISHI Toshiharu

    ISSPIC-18  2016.8 

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  • 無機ナノ粒子の精密構造制御・機能・次世代材料応用 Invited

    寺西 利治

    サイエンス＆テクノロジー講演会  2016.9 

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  • ナノ粒子超格子に基づく光電場増強場の創出とその新奇化学反応への展開

    特定領域研究「光ー分子強結合反応場の創成」第8回公開シンポジウム  2011.1  東京

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  • 求めるパフォーマンス、求める研究社員とは！？「研究者とは何か」 Invited

    寺西 利治

    ワールドインテック研修会  2017.6 

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  • Potential of element exchange reactions in forming unprecedented nanostructures Invited

    Toshiharu Teranishi

    3rd KU-UNIST Joint Symposium  2024.11 

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  • Synthesis and Visible-Plasmonic Properties of Intermetallic Nanoparticles Invited

    Toshiharu Teranishi

    245th ECS Meeting  2024.5 

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  • Transformation and Advanced Catalytic Properties of Ionic Nanocrystals Invited

    Toshiharu Teranishi

    Taiwan International Conference on Catalysis  2024.6 

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  • 元素置換反応が拓くナノ物質科学 Invited

    寺西利治

    学際統合物質科学機構 成果報告会  2024.1 

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  • Transformation of Ionic Nanocrystals by Element Substitution Reactions Invited

    Toshiharu Teranishi

    Lecture at Jiangsu University  2024.4 

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  • Transformation of Ionic Nanocrystals by Element Substitution Reactions Invited

    Toshiharu Teranishi

    Lecture at University of Shanghai Science and Technology  2024.4 

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  • 原子層・結晶相配列制御による未踏ナノ物質の創製と機能発現 Invited

    寺西利治

    日本化学会第91春季年会中長期テーマ  2024.3 

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  • Transformations of Inorganic Nanocrystals by Element Substitution Reactions Invited

    Toshiharu Teranishi

    ISSPIC XXI  2023.9 

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  • ナノ元素置換科学：未踏構造ナノ粒子の安定化 Invited

    寺西利治

    光・量子デバイス研究会  2023.7 

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  • Development of visible-to-near infrared plasmonic nanomaterials by element substitution reactions Invited

    Toshiharu Teranishi

    The 31st International Conference on Photochemistry  2023.7 

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  • Potential of element substitution reactions in forming novel nanostructure Invited

    Toshiharu Teranishi

    Shanghai-Kyoto Chemistry Forum 2024  2024 

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  • New Class of Plasmonic Alloy Nanoparticles Invited

    Toshiharu Teranishi

    The 13th Asia-Pacific Conference on Near-Field Optics  2022.7 

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  • New Class of Plasmonic Alloy Nanoparticles Invited

    Toshiharu Teranishi

    243rd ECS Meeting  2023.5 

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  • Transformation of Inorganic Nanocrystals by Element Substitution Reactions Invited

    Toshiharu Teranishi

    Nanomaterials Chemistry Workshop  2023.6 

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  • 元素置換による可視－近赤外プラズモンナノ材料の開拓 Invited

    寺西利治

    2022光化学討論会  2022.9 

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  • Nanoscale Element Replacement Science: Structural Transformation of Nanocrystalline Phases and Development of Novel Functions Invited

    Toshiharu Teranishi

    Seminar on Low-dimensional Physics and Devices  2022.12 

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  • Potential of element substitution reactions in forming novel nanostructures Invited

    Toshiharu Teranishi

    Shanghai-Kyoto Chemistry Forum 2024  2024.11 

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  • Potential of Element Substitution Reactions in Forming Novel Alloy Nanocrystals Invited

    Toshiharu Teranishi

    Lecture at Jiangsu University  2024.12 

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  • Potential of element substitution reactions in forming novel nanostructures

    Toshiharu Teranishi

    Japan-Taiwan Initiatives for Quantum Matters and Carbon Neutral  2024.11 

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  • Potential of Element Exchange Reactions in Forming Unprecedented Nanostructures Invited

    Toshiharu Teranishi

    SUSTech-KyotoU Collaboration Workshop  2025.6 

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  • Unique Optical Properties of Nanocrystals and Their Superlattices Invited

    Toshiharu Teranishi

    ICEC2025  2025.6 

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  • Potential of Element Substitution Reactions in Forming Unprecedented nanostructures Invited

    Toshiharu Teranishi

    Japan-CRPP Mini-Symposium on Advanced Nanomaterials  2025.3 

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  • Potential of Ion Exchange Reactions in Forming Unprecedented Nanostructures Invited

    Toshiharu Teranishi

    247th ECS Meeting  2025.5 

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  • ナノ仮晶化学：元素置換による新しいナノ粒子の創り方 －プラズモニクスにおける錬金術－ Invited

    寺西 利治

    第3回精密無機有機合成化学研究会  2018.10 

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  • ナノ結晶の特異構造がもたらす高効率光エネルギー変換特性 Invited

    寺西 利治

    第22回名古屋大学VBLシンポジウム  2018.11 

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  • Novel Plasmonic Alloy Nanocrystals formed by Pseudomorphic Reaction Invited International conference

    TERANISHI Toshiharu

    KJF International Conference on Organic Materials for Electronics and Photonics  2018.9 

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  • ナノ仮晶化学の開拓と近赤外プラズモニクスへの展開 Invited

    寺西 利治

    錯体化学若手の会夏の学校  2018.9 

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  • Novel Plasmonic Nanomaterials for Near Infrared Light Energy Conversion Invited International conference

    TERANISHI Toshiharu

    235rd ECS Meeting  2019.5 

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  • Novel Plasmonic Nanoparticles for Near Infrared Light Energy Conversion Invited

    Teranishi Toshiharu

    10th International Conference on Materials for Advanced Technologies (ICMAT 2019)  2019.6 

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  • ヘテロ構造ナノ粒子の近赤外プラズモン励起キャリアダイナミクス計測 Invited

    寺西 利治

    2019 OCUシンポジウム  2019.1 

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  • New Plasmonic Chemistry of Nanocrystals toward Photoenergy Conversion Invited International conference

    TERANISHI Toshiharu

    Academia Sinica RCAS Seminar  2019.4 

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  • New Plasmonic Chemistry of Nanocrystals toward Photoenergy Conversion Invited International conference

    TERANISHI Toshiharu

    Peking University Seminar  2018.8 

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  • ナノ仮晶化学：元素置換による新しいナノ粒子の創り方 －プラズモニクスにおける錬金術－ Invited

    寺西 利治

    日本セラミックス協会第31回秋季シンポジウム  2018.9 

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  • Novel Plasmonic Nanomaterials for Photoenergy Conversion Invited

    TERANISHI Toshiharu

    Tokyo University Zasshikai Seminar 1720th  2018.2 

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  • 金属・半導体ナノ粒子の１日速習講座 Invited

    寺西 利治

    R&D支援センターセミナー  2018.3 

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  • Efficient Charge Separation in Heterostructured Nanoparticles Invited International conference

    TERANISHI Toshiharu

    5th CMS International Symposium on Photofunctional Chemistry and Molecular Systems  2017.12 

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  • ヘテロ構造ナノ粒子の新奇プラズモニック特性 Invited

    寺西 利治

    第3回OCU物質科学フロンティアシンポジウム  2018.1 

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  • ナノプラズモニクスの新展開 Invited

    寺西 利治

    第3回固体化学フォーラム研究会  2018.6 

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  • ナノ結晶の特異構造がもたらす高効率光エネルギー変換

    寺西 利治

    第12回東京大学応化談話会サタデーサロン  2018.6 

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  • Near Infrared Plasmon-Induced Charge Separation in Heterostructured Nanoparticles Invited International conference

    TERANISHI Toshiharu

    233rd ECS Meeting  2018.5 

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  • 求めるパフォーマンス、求める研究社員とは！？「研究者とは何か」 Invited

    寺西 利治

    ワールドインテック研修会  2018.6 

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  • Pseudomorphic Transformation of Nanocrystals by Element Replacement Invited International conference

    TERANISHI Toshiharu

    SMANAM2018  2018.7 

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  • 原子を集めて入れ替える 〜新しいナノ粒子の創り方と使い方〜 Invited

    寺西 利治

    第7回CSJフェスタ  2017.10 

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  • ナノ元素置換科学：未踏構造ナノ粒子の合成と構造特異機能 Invited

    寺西利治

    光・量子デバイス研究会  2021.6 

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  • ナノ元素置換科学：未踏構造ナノ粒子の合成と構造特異機能 Invited

    寺西利治

    名古屋大学大学院理学研究科 公開講演会  2020.10 

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  • ナノ元素置換科学：未踏構造ナノ粒子の合成と構造特異機能 Invited

    寺西利治

    北海道大学大学院総合化学院 講演会  2020.12 

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  • 論文の書き方、論文の投稿のコツ －エディターからの助言－ Invited

    寺西利治

    CSJ科学フェスタ2021  2021.10 

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  • Transformations of Ionic Nanocrystals via Ion Exchange Reactions

    Toshiharu Teranishi

    241st ECS Meeting  2022.5 

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  • New Class of Visible-to-NIR Responsive Plasmonic Nanoparticles Invited

    Teranishi Toshiharu

    RMIT University Seminar  2020.2 

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  • Novel Plasmonic Nanomaterials for Near Infrared Light Energy Conversion Invited

    Teranishi Toshiharu

    8th International Conference on Nanoscience and Nanotechnology (ICONN 2020)  2020.2 

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  • New Class of Visible-to-NIR Responsive Plasmonic Nanoparticles Invited

    Teranishi Toshiharu

    Platinum Seminar  2020.2 

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  • Plasmon-induced Hot Carrier Chemistry Invited

    Teranishi Toshiharu

    KU-UNIST Joint Symposium  2019.10 

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  • Plasmon-induced Hot Carrier Chemistry in Inorganic Nanoparticles Invited

    Teranishi Toshiharu

    12th China‐Japan Joint Symposium on Metal Cluster Compounds (CJJSMCC2019)  2019.10 

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  • 金属・半導体ナノ粒子の１日速習講座 Invited

    寺西 利治

    R&D支援センターセミナー  2019.10 

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  • 投稿から出版まで Invited

    寺西 利治

    第9回CSJ化学フェスタ  2019.10 

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  • Development of Nanoplasmonics by Element Substitution Chemistry Invited

    Teranishi Toshiharu

    79th CEMS Colloquium  2020.1 

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  • Novel Plasmonic Nanomaterials for Near Infrared Light Energy Conversion Invited

    Teranishi Toshiharu

    Okinawa Colloids 2019  2019.11 

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  • New Class of Visible-to-NIR Light Responsive Plasmonic Nanoparticles Invited

    Teranishi Toshiharu

    Mini-symposium on Advanced Nanomaterials  2020.1 

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  • Plasmon-induced Hot Carrier Chemistry Invited

    Teranishi Toshiharu

    ASNANO-2 2019  2019.8 

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  • 新しい可視・近赤外プラズモン合金ナノ粒子 Invited

    寺西 利治

    第68回高分子討論会  2019.9 

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  • Novel Plasmonic Nanomaterials for Near Infrared Light Energy Conversion Invited

    Teranishi Toshiharu

    ChinaNano 2019  2019.8 

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  • 高品質機能性ナノ粒子の構造制御・物性・機能 Invited

    寺西 利治

    情報機構講演会  2012.6 

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  • 無機ナノ粒子の革新的エネルギー材料への展開

    第30回関西界面科学セミナー  2012.7  神戸

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  • Charge Separation in Type-II Semiconductor Heterodimers Formed by Anion Exchange Reaction Invited International conference

    TERANISHI Toshiharu

    221st Electrochemical Society Meeting  2012.5 

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  • Control over Structures and Plasmonic Properties of Various Inorganic Nanoparticles

    Yamada Conference LXVI  2012.6  Tokyo, Japan

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  • Nanoplasmonics in Polyhedral Gold Nanoparticle Assemblies

    Gold2012  2012.9  Tokyo, Japan

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  • Macrocyclic π-Conjugated Ligand-protected Au Nanoparticles for Single Electron Devices Invited International conference

    TERANISHI Toshiharu

    1st International Symposium on Creation of Functional Materials  2011.12 

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  • Charge Separation in Type-II Semiconductor Heterodimers Formed by Anion Exchange Reaction Invited International conference

    TERANISHI Toshiharu

    International Conference and Workshop on Nanostructured Ceramics & Other Nanomaterials  2012.3  Delhi, India

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  • 無機ナノ構造による表面プラズモン共鳴波長制御 Invited

    寺西 利治

    日本化学会第92春季年会  2012.3  東京

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  • 無機ナノ粒子 －精密構造制御と構造特異機能－ Invited

    寺西 利治

    日本触媒講演会  2012.1 

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  • 大環状π共役平面分子の平面配位による無機ナノ粒子の機能変換 Invited

    寺西 利治

    化学技術未来戦略ＷＳ「機能原子薄膜／分子薄膜の創生と展開」  2012.2  東京

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  • Nanoplasmonics for Inorganic Nanoparticles Invited International conference

    TERANISHI Toshiharu

    2011 Tsukuba Nanotechnology Symposium  2011.11 

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  • 無機ナノ粒子プラズモニクス：近赤外光電場増強と局在プラズモン伝播

    第2回プラズモニック化学シンポジウム  2011.11  東京

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  • Control Over Surface Plasmon Resonance Wavelengths of Conductive Nanoparticles

    International Conference on Materials for Advanced Technologies 2011  2011.6  Suntec City, Singapore

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  • Controlled Localized Surface Plasmon Resonance Wavelength for Inorganic Nanoparticles

    14th Asian Chemical Congress 2011  2011.9  Bangkok, Thailand

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  • 複数の結晶相が接合したナノ粒子 Invited

    寺西 利治

    関学化学フォーラム  2011.11 

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  • 無機ナノ粒子の構造変態と物性 Invited

    寺西 利治

    磁性分光研究会～X線分光学による物質科学へのアプローチ～  2011.12 

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  • High-Quality Inorganic Nanoparticles for Highly Efficient Photoenergy Conversion

    219th Electrochemical Society Meeting  2011.5  Monreal, Canada

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  • 無機ナノ粒子の構造制御による局在表面プラズモン共鳴波長制御

    第1回プラズモン化学シンポジウム  2011.6  東京

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  • 無機ナノ粒子の構造制御による表面プラズモン共鳴波長制御

    日本化学会第91春季年会シンポジウム  2011.3  神奈川

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  • 単電子エレクトロニクスへのナノ粒子科学からのアプローチ

    日本化学会第91春季年会シンポジウム  2011.3  神奈川

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  • 有機－無機ハイブリッドナノ粒子の特異界面機能 Invited

    寺西 利治

    高分子・ハイブリッド材料研究センター2014PHyMシンポジウム  2014.6 

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  • π－金属カップリングによるシナジー機能の開拓 Invited

    寺西 利治

    日本化学会第94春季年会中長期企画「配位シナジー」  2014.3 

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  • Structure-Dependent Photo-Induced Charge Separation in Type-II Semiconductor Heterostructures International conference

    TERANISHI Toshiharu

    225th Electrochemical Meeting  2014.5 

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  • エレクトロニクス・プラズモニクスを切り拓くナノ粒子 Invited

    寺西 利治

    関西学院大学理工学部講演会  2013.8 

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  • 特異界面機能をもつ無機ナノ粒子 Invited

    寺西 利治

    日本セラミックス協会第26回秋季シンポジウム  2013.9 

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  • 金クラスターを単電子島とする単電子デバイスの開発 Invited

    寺西 利治

    東工大応用セラミックス研究所長賞記念講演会  2013.7 

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  • 無機ナノ粒子の特異界面機能の開拓 Invited

    寺西 利治

    ポリマーフロンティア２１  2014.1 

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  • Charge Separation in Type-II Semiconductor Heterodimers Formed by Anion Exchange Reaction Invited International conference

    TERANISHI Toshiharu

    Solid State Chemistry Potpourri in Kyoto  2014.3 

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  • 無機ナノ粒子の高効率光機能材料への展開 Invited

    寺西 利治

    フォトニクス技術フォーラム  2013.11 

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  • 液相合成によるナノコンポジット磁石の創製 Invited

    寺西 利治

    日本磁気学会第192回研究会  2013.11 

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  • Synthesis and Photochemical Behavior of Platonic Hexahedron Composed of Six Porphyrins and an Au Cluster Invited International conference

    TERANISHI Toshiharu

    223rd Electrochemical Society Meeting  2013.4 

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  • プラズモンナノ材料の作り方と使い方 Invited

    寺西 利治

    第4回プラズモニック化学シンポジウム  2013.6 

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  • 金クラスターを内包したポルフィリン正六面体の合成と単電子デバイスへの応用 Invited

    寺西 利治

    第60回応用物理学会春季学術講演会  2013.3 

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  • 無機ナノ粒子のエネルギー材料への展開 Invited

    寺西 利治

    高分子同友会勉強会  2013.4 

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  • 金クラスターを内包したポルフィリン正六面体の合成と特異光学特性 Invited

    寺西 利治

    第61回高分子討論会  2012.9 

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  • Inorganic Nanoparticles as Innovative Energy Materials Invited International conference

    TERANISHI Toshiharu

    I2CNER Seminar Series  2012.9 

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  • プラズモンナノ粒子の精密合成と光学特性 Invited

    寺西 利治

    情報機構講演会  2012.11 

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  • π共役分子－無機クラスター複合系の特異光物性 Invited

    寺西 利治

    日本化学会第93春季年会「特別企画」  2013.3 

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  • Nanoplasmonics in Inorganic Nanoparticles

    IUMRS-ICEM2012  2012.9  Yokohama, Japan

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  • 低次元性が誘起する有機−無機ハイブリッドナノ粒子の構造特異光学特性

    日本化学会「低次元系光機能材料研究会」  2012.11  つくば

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  • Visible-to-NIR Plasmonics in Inorganic Nanodisks Invited International conference

    TERANISHI Toshiharu

    PacifiChem 2015  2015.12 

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  • 無機ナノ粒子超構造の構築と機能 Invited

    寺西 利治

    分子研研究会  2015.3 

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  • Visible to Near-IR Nanoplasmonics in Inorganic Nanoparticles Invited International conference

    TERANISHI Toshiharu

    227th ECS Meeting  2015.5 

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  • 無機ナノ粒子：精密構造制御からエネルギー材料応用まで Invited

    寺西 利治

    豊田中央研究所講演会  2015.6 

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  • 無機ナノ粒子：精密構造制御からエネルギー材料応用まで Invited

    寺西 利治

    早稲田大学高等研究所セミナーシリーズ  2015.3 

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  • Determination of a Localized Surface Plasmon Resonance Mode of Cu7S4 Nanodisks by Plasmon Coupling Invited International conference

    TERANISHI Toshiharu

    Faraday Discussion: Nanoparticles Synthesis and Assembly  2015.4 

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  • ナノ仮晶化学：元素置換によるナノ結晶の構造変態 Invited

    寺西 利治

    第2回精密無機有機合成化学研究会  2015.10 

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  • 無機ナノ粒子：精密構造制御からエネルギー材料応用まで Invited

    寺西 利治

    分子工学コロキウム  2015.11 

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  • Nanoplasmonics in Inorganic Nanoparticles International conference

    TERANISHI Toshiharu

    Nanotech France 2015  2015.6 

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  • 無機ナノ粒子：精密構造制御からエネルギー材料応用まで Invited

    寺西 利治

    サイエンス＆テクノロジー講演会  2015.6 

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  • π-Metal Orbital Coupling in a Porphyrin-Gold Cluster System International conference

    TERANISHI Toshiharu

    13th Eurasia Conference on Chemical Sciences  2014.12 

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  • 無機ナノ粒子の特異界面機能の開拓

    寺西 利治

    第１回OCU物質科学フロンティアシンポジウム  2015.1 

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  • ナノ粒子元素ブロックの合成と特異界面物性 Invited

    寺西 利治

    第63回高分子討論会  2014.9 

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  • ヘテロ界面制御による高機能無機ナノ粒子の創製 Invited

    寺西 利治

    ナノインク懇話会  2014.10 

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  • 無機ナノ粒子のヘテロ界面制御と特異界面機能 Invited

    寺西 利治

    学振174委員会第48回研究会  2014.9 

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  • π-Metal Orbital Coupling in a Porphyrin-Gold Cluster System Invited International conference

    TERANISHI Toshiharu

    Taishan Academic Forum 2014  2014.9 

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  • Structure-Dependent Photo-Induced Charge Separation in Type-II Semiconductor Heterodimers Invited International conference

    TERANISHI Toshiharu

    Taishan Academic Forum Environment and Energy Materials  2014.11 

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  • Nanoplasmonics in Inorganic Nanoparticles Invited International conference

    TERANISHI Toshiharu

    Pioneers in Photonic Nanostructures and Nanophotonics  2014.12 

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  • Carrier Density-dependent Plasmonic Properties of Inorganic Nanoparticles Invited International conference

    TERANISHI Toshiharu

    7th International Workshop on Advanced Materials Science and Nanotechnology  2014.11 

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  • Structure-Dependent Photo-Induced Charge Separation in Type-II Semiconductor Heterodimers Invited International conference

    TERANISHI Toshiharu

    Vietnam Malaysia International Chemical Congress  2014.11 

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  • 無機ナノ粒子：設計の重要性と偶発の面白さ Invited

    寺西 利治

    大阪大学大学院工学研究科応用物理学コース大学院ゼミナール講演  2016.11 

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  • Pseudomorphic Transformation of Nanocrystals by Element Replacement Invited

    TERANISHI Toshiharu

    France-Japan Workshop  2016.12 

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  • Nano-pseudomorphic Chemistry: Novel Structural Transformation of Nanocrystals by Element Replacement Invited International conference

    TERANISHI Toshiharu

    Applied Nanotechnology & Nanomaterials  2016.11 

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  • Pseudomorphic Transformation of Nanocrystals by Element Replacement Invited International conference

    TERANISHI Toshiharu

    231th ECS Meeting  2017.5 

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Industrial property rights

  • 金属ナノロッド含有樹脂、近赤外線遮蔽レンズ、近赤外線遮????眼鏡、保護具、近赤外線遮蔽窓材、近赤外線遮蔽器具、近赤外線遮蔽フィルム、近赤外線遮蔽ガラス、及び金属ナノロッド集合体の製造方法

    町田 佳輔, 寺西 利治

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    Application no：特願2018-173890  Date applied：2018.9

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  • 赤外線センサー用組成物及び赤外線センサー

    坂本 雅典, 寺西 利治, 加納 伸也

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    Application no：特願2018-107487  Date applied：2018.6

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  • 半導体膜、光センサ、固体撮像素子及び太陽電池

    瀧澤 修一, 塩見 治典, 保原 大介, 坂本 雅典, 寺西 利治

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    Application no：特願2018-018657  Date applied：2018.2

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  • 可視光プラズモニック合金ナノ粒子、その製造方法、及びその用途

    佐藤 良太, 寺西 利治, 川脇 徳久, 信定 克幸, 飯田 健二

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    Application no：特願2017-159786  Date applied：2017.8

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  • テトラフェニルポルフィリン誘導体

    坂本 雅典, 寺西 利治, 加納 伸也

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    Application no：特願2017-101193  Date applied：2017.5

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  • 光電変換機能を有する電子デバイス

    坂本 雅典, 寺西 利治, 川脇 徳久

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    Application no：特願2016-234684  Date applied：2016.12

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  • 酸素生成用光触媒用助触媒、及び該助触媒を担持した酸素生成用光触媒、並びに複合体及び該複合体の製造方法

    猿山 雅亮, 坂本 雅典, 寺西 利治, 秋山 誠治, 堂免 一成

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    Application no：特願2016-197428  Date applied：2016.10

    Announcement no：特開2018-058065  Date announced：2018.4

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  • 磁性体

    佐久間 紀次, 加藤 晃, 矢野 正雄, 伊東 正朗, 寺西 利治, 佐藤 良太, チュイン タン トゥイ

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    Application no：特願2016-035501  Date applied：2016.2

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  • ナノデバイス

    真島豊, 寺西利治, 加納伸也, 青山詠樹

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    Application no：特願2016-5455609  Date applied：2015.8

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  • 貴金属含有ナノ粒子及びその製造方法

    佐藤 良太, 寺西 利治, 治田 充貴

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    Application no：特願2014-249393  Date applied：2014.12

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  • パラジウム合金ナノ粒子の製造方法

    佐藤 良太, 寺西 利治

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    Application no：特願2014-185749  Date applied：2014.9

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  • FePd/Feナノコンポジット磁石及びその製造方法

    伊東 正朗, 岸本 秀史, 佐久間 紀次, 寺西 利治, 佐藤 良太, チュイン タン トゥイ

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    Application no：特願2014-58887  Date applied：2014.3

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  • 光触媒及び水分解反応用電極並びに水素及び／又は酸素の製造方法

    寺西 利治, 吉永 泰三, 堂免 一成, 久富 隆史, 熊 諳珂, 秋山 誠治

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    Application no：特願2013-254405  Date applied：2013.12

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  • ITOナノ粒子及びその製造方法

    山本 有紀, 寺西 利治, 坂本 雅典

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    Application no：特願2013-128191  Date applied：2013.6

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Works

  • Study on semiconductor nanoparticles

    2010

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  • Development of photocatalysts for overall water splitting by visible light

    2009

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  • Liquid Synthesis of Multi-metallic Nanoparticles

    2008

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  • Liquid-phase synthesis and structural control of nanocomposite magnet nanoparticles

    2004 - 2009

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  • Study on ultra high density recording media using magnetic nanoparticles

    2001 - 2005

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  • Synthesis of novel alloy plasmonic nanoparticles

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  • Element substitution chemistry

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  • Synthesis of unprecedented alloy nanoparticles

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Awards

  • The Japanese Photochemistry Association Special Lectureship Award

    2022.9   The Japanese Photochemistry Association   Development of Visible-to-Near Infrared Plasmonic Nanomaterials by Element Substitution

    Toshiharu Teranishi

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  • Fellow of the Royal Society of Chemistry

    2021.5   The Royal Society of Chemistry  

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  • Gold Conference 2006 Best Presentation Award

    2006  

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  • Gold Conference 2006 Best Presentation Award

    2006  

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    Country：Japan

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  • 日本化学会コロイド及び界面化学部会平成16年度科学奨励賞

    2004  

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    Country：Japan

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  • 2004 Science encouragement award, Division of Colloid and Surface Chemistry, The Chemical Society of Japan

    2004  

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  • 第５回「貴金属に関わる研究助成金制度」（田中貴金属工業）ゴールド賞

    2003  

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    Country：Japan

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  • Gold prize, 5th Subsidy on noble metals

    2003  

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  • 日本化学会第76春季年会 講演奨励賞

    1999  

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    Country：Japan

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  • Lectureship award, The Chemical Society of Japan 76th spring meeting

    1999  

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  • IUPAC第７回高分子金属錯体国際会議（MMC-7）ポスター賞

    1997  

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  • Poster award, IUPAC 7th International Symposium on Macromolecular-Metal Complexes

    1997  

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Research Projects

  • Pt- and Pd-based unprecedented ordered alloy nanoparticles for high-performance oxygen reduction reaction catalysts

    Grant number：24KF0115  2024.7 - 2027.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for JSPS Fellows

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    Grant amount：\2100000 （ Direct Cost: \2100000 ）

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  • Nanoscale Element Substitution Science: Construction of Mega Library and Development of Cutting-edge Functions

    Grant number：24H00053  2024.4 - 2029.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (S)

    Toshiharu Teranishi

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    Authorship：Principal investigator 

    Grant amount：\204880000 （ Direct Cost: \157600000 、 Indirect Cost：\47280000 ）

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  • Creation of unprecedented nanomaterials by freely arranging atomic layers and crystalline phases

    Grant number：21466105  2021.10 - 2027.3

    Japan Science and Technology Agency  Core Research for Evolutionary Science and Technolog 

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  • Creation of Unprecedented Alloy Cathode Catalysts

    Grant number：20001199-0  2020.7 - 2025.3

    NEDO 

    Toshiharu Teranishi

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    Authorship：Principal investigator 

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  • Nanoscale Element Replacement Science: Structural Transformation of Nanocrystalline Phases and Development of Novel Functions

    Grant number：19H05634  2019.6 - 2024.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (S)

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    Grant amount：\201630000 （ Direct Cost: \155100000 、 Indirect Cost：\46530000 ）

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  • 界面応力による未踏規則化合金ナノ粒子の創製と構造特異物性の開拓

    Grant number：19K22231  2019.6 - 2023.3

    日本学術振興会  科学研究費助成事業  挑戦的研究(萌芽)

    寺西 利治

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    Grant amount：\6500000 （ Direct Cost: \5000000 、 Indirect Cost：\1500000 ）

    ナノスケール無機物質（ナノ粒子）の構造変換により得られる新奇結晶相は、一段合成で得られるナノ粒子にはない興味深い結晶構造・物性をもつと期待される。特に、無機物質の異方結晶構造に基づく異方的機能の発現は、高性能・高効率材料創製の観点から極めて興味深い。本研究では、ナノコンポジット磁石開発時に不純物金属相の界面応力により偶発的に得られたP4/mmm空間群を基礎とした新奇FePd3規則化合金相（L10-FePd相とfcc-Pd相が交互積層した結晶相）の形成メカニズムを解明し、新奇規則化合金相が発現する軽元素吸蔵特性や磁気特性等の構造特異物性を評価するとともに、未踏規則化合金材料群の設計指針を提案することを目的とする。
    本年度は、昨年度までに精密構造制御を行ったZ3-Fe(Pd,In)3ナノ粒子の新規物性開拓を行った。等方性L12-(Fe,In)Pd3ナノ粒子と異方性等方性Z3-Fe(Pd,In)3ナノ粒子の磁気特性を評価したところ、L12-(Fe,In)Pd3と比較し異方性Z3-Fe(Pd,In)3では保磁力が約15倍増加しており、構造異方性に起因する構造特異物性の発現が実証された。本成果は、Nature Communicationsに掲載された。また、Inの代わりにPdおよびFeと相溶可能なZnを用いると、FePdZn層とPd層が交互積層したP4/mmm空間群をもつ全く新しい異方性合金相が形成した。すなわち、元素間相溶性を考慮することにより、新たな未踏合金を合成することができることを実証した。

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  • ナノ金属相科学：新金属相ナノ粒子群の創製と新奇機能開拓

    Grant number：19H00914  2019.4 - 2020.3

    日本学術振興会  科学研究費助成事業  基盤研究(A)

    寺西 利治

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    Grant amount：\46020000 （ Direct Cost: \35400000 、 Indirect Cost：\10620000 ）

    無機ナノ粒子の合金化は、基金属の性質を制御するだけではなく、機能の複合化や単一金属だけでは発現することのない新規特性を与える手法として注目されている。本研究では、dバンドセンターやフェルミ準位で決定される希少貴金属の優れた物性や触媒能を凌駕する新奇ナノスケール金属相の開拓を目的とした。具体的には、低周期dブロック金属元素を基盤に、13～15族pブロック元素との化合物形成により定常的・連続的に電子構造を変調した新奇な金属化合物ナノ粒子群を創製し、金属化合物ナノ粒子の浅いフェルミ準位を利用し、pブロック元素を低酸化還元電位金属に置換することにより、未踏合金ナノ粒子群を合成した。2019年度は、貴金属の合金化の新奇手法として、単分散なパラジウム－リン（Pd-P）合金ナノ粒子を出発物質としたPd基合金ナノ粒子の合成手法を利用した。これまでに、B2-PdInナノ粒子では、局在表面プラズモン共鳴（LSPR）に起因する吸収ピークが可視領域に確認されており、吸収ピークの極大波長はB2-PdInナノ粒子の粒径の増大とともに長波長側にシフトし、金属ナノ粒子のLSPRに特徴的な傾向が観測されいる。B2-PdInナノ粒子のLSPR発現が、その結晶構造、すなわち、11族元素に類似したバンド構造に由来であることに着目し、B2結晶構造をもつ12族元素とPdとの合金ナノ粒子として、B2-ZnPdを同様の手法で合成した。その結果、B2-ZnPdナノ粒子の合成に成功し、可視領域にLSPR吸収を示すことが分かった。すなわち、11族元素に類似したバンド構造をもつB2-Pd基合金が、新たに可視領域にLSPR吸収を示すナノ粒子群であることを実証した。

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  • 可視光で駆動する水分解用ヘテロ構造Ｃｕ２Ｏ／Ａｕ／ＷＯ３光触媒の創製

    Grant number：18F18031  2018.10 - 2021.3

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    寺西 利治, LIU MING-HAN

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    Grant amount：\2200000 （ Direct Cost: \2200000 ）

    近年、ナローバンドギャップをもつ光触媒が開発されており、ドープ金属酸化物（TiO2:Rh、約600nmに吸収端）、ペロブスカイト型ドープ金属酸化物（SrTiO3:Rh（0.5％）、約500nmに吸収端）、固溶体光触媒（GaN:ZnO、約550nmに吸収端）などがある。これらの光触媒の欠点は、（1）可視光の一部しか吸収しないこと、（2）ドーパントが光触媒中で電子－正孔再結合中心となり、エネルギー変換効率が低下すること、（3）ペロブスカイト金属酸化物および固溶体光触媒の合成に多くのエネルギーを消費することである。本研究では、光触媒としてCu2OおよびWO3半導体を用い、助触媒ナノ粒子および電子移動媒体を組み込んだ可視光応答Zスキーム光触媒システムを構築することを目的とする。
    本年度は、昨年度Cu2Oナノ粒子から合成することに成功した中空状CuInS2ナノ粒子と酸素生成光触媒ナノ粒子とのヘテロ接合に取り組んだ。酸素生成触媒のBiVO4ナノ粒子を、中空状CuInS2ナノ粒子のサイズに合うよう合成した（サイズ：~120 nm、厚さ：40 nm）。助触媒としての2 wt％Co3O4を担持したBiVO4ナノ粒子の酸素生成触媒活性は2106 μmol・g-1・h-1となり、他の報告と比較しても優れた活性を有していることが分かった。以上より、酸化還元媒体であるAuナノ粒子を介した一粒子Zスキーム光触媒の構築が現実的なものとなった。現在、CuInS2ナノケージの合成と高活性水還元触媒特性、ならびに、Pt担持CuInS2ナノケージ/Au/Co3O4担持BiVO4光触媒構築に関する論文投稿の準備をしている。

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  • 配位アシンメトリー：非対称配位圏設計と異方集積化が拓く新物質科学

    Grant number：16K21733  2016.6 - 2023.3

    日本学術振興会  科学研究費助成事業  新学術領域研究(研究領域提案型)

    塩谷 光彦, 寺西 利治, 植村 卓史, 君塚 信夫

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    Grant amount：\61360000 （ Direct Cost: \47200000 、 Indirect Cost：\14160000 ）

    新学術領域研究「配位アシンメトリ」は、錯体化学および関連分野において未開拓であった金属中心の非対称配位圏の設計・合成法と異方集積化法の新しい学理を確立することを目的としている。この新領域を広く普及させ可視化するためには、国際的なネットワーク形成や異分野交流が必要である。2021年度は国際融合バーチャルラボの協力体制の下に研究活動を推進した。約5年間で構築した国内外の研究ネットワークの多くが継続的な共同研究や人事交流につながっている。
    主な領域全体の国際的活動の一つとして、新型コロナウイルスの感染症の影響により延期していた環太平洋国際化学会議（Pacifichem 2020、日本化学会等主催）の配位アシンメトリー（Coordination Asymmetry: Symposium #248）セッションがオンラインで開催された。国外6件、計画研究15件、公募・一般17件の口頭・ポスター発表に基づき、100名を超える参加者の間で、非対称配位圏に基づく構造・物性・機能に関する議論や情報交換が活発に行われた。また、2016年度から2020年度までに本新学術領域研究から1300報を超える国際学術論文が発表されたが、本年度はこれらの研究成果からナノアーキテクトニクスに関する論文の一部を選び、Bull. Chem. Soc. Jpn.の総説として、国際情報発信に努めた。まだ1年程しか経っていないが、すでに被引用回数が約40件に達しており、国際的な注目度が高いことが示された。

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  • Novel Development of Asymmetry Chemistry in Inorganic Nanocrystals

    Grant number：16H06520  2016.6 - 2021.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Teranishi Toshiharu

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    Grant amount：\115570000 （ Direct Cost: \88900000 、 Indirect Cost：\26670000 ）

    In this research, we develop a new field of chemistry, asymmetry chemistry, by fabricating the asymmetric structures composed of various inorganic nanocrystals. An anisotropic assembly of near-infrared plasmonic nanocrystals and carrier acceptor nanocrystals was successfully achieved while controlling their band positions. Then we achieved high quantum yield and charge separation lifetime exceeding microseconds in near-infrared light-induced directional charge separation by utilizing trap levels etc. of plasmonic nanocrystals. We also succeeded in synthesizing pseudo-tetrahedral Au nanocrystals planarly coordinated with four porphyrin derivatives, and demonstrated that the electrochemical hydrogen evolution reaction activity is enhanced by the charge transfer from porphyrin to the Au core.

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  • Coordination Asymmetry: Design of Asymmetric Coordination Sphere and Anisotropic Assembly for the Creation of Functional Molecules

    Grant number：16H06508  2016.6 - 2021.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

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    Grant amount：\70200000 （ Direct Cost: \54000000 、 Indirect Cost：\16200000 ）

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  • Synthesis of Novel Metallic Phase Nanoparticles and Development of Their Catalysis

    Grant number：16H03826  2016.4 - 2019.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    Teranishi Toshiharu, SAKAMOTO masanori, SATO ryota

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    Grant amount：\19370000 （ Direct Cost: \14900000 、 Indirect Cost：\4470000 ）

    This research aims at the synthesis of novel metallic phase nanoparticles with excellent properties, compared with the noble metal nanoparticles, by tuning the electronic structures. The Pd-P metal compound nanoparticles were successfully synthesized by introducing the element P, which has the similar electron negativity with the element Pd, into the Pd nanoparticles. Then, the Pd-base metal alloy nanoparticles was synthesized by the pseudo-galvanic replacement reaction of the Pd-P nanoparticles with various base metal ions. Furthermore, it was demonstrated that the B2-Pd-base metal alloy nanoparticles (e.g., B2-PdIn) possessing the similar band structures with group 11 elements showed the localized surface plasmon resonance in the visible region.

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  • Enhanced Hydrogen Storage Ability of Palladium Nanodisks induced by Visible-to-Near Infrared Plasmons

    Grant number：16K13978  2016.4 - 2018.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    Teranishi Toshiharu, YAMAUCHI Miho, LI Yanhui

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    Grant amount：\3770000 （ Direct Cost: \2900000 、 Indirect Cost：\870000 ）

    Insertion of carbon atoms into the Pd nanodisks was carried out to confirm the plasmon peak shift by dissolving another element into the Pd nanodisks. When the Pd nanodisks of 79 ± 16 nm in side and 23 ± 3.2 nm in thickness were reacted with trimethylamine-N-oxide, an insertion of carbon atoms into the lattices of Pd nanodisks was observed. By changing the reaction conditions, the Pd sublattices were found to possess either a hexagonal close-packed structure or a cubic close-packed structure. Furthermore, it was found that the change in the dielectric constant of the Pd nanodisks by the carbon insertion induced the red-shift of the plasmon peak. This result means that the light irradiation with longer wavelength than the plasmon peak of Pd nanodisk is necessary for enhancing the hydrogen storage ability.

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  • Lubricity evaluation of articular cartilage by spectroscopic characterization of dispersion and/or aggregation of Au nanoparticles

    Grant number：15K12565  2015.4 - 2017.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    Ishihara Miya, TERANISHI Toshiharu, SATO Masato

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    Grant amount：\3640000 （ Direct Cost: \2800000 、 Indirect Cost：\840000 ）

    In order to promote a prosperous aging society, maintaining our ADL (Activity of daily life) is important. For this purpose, noninvasive measurements of articular cartilage functions are required. We developed diagnostic methods of viscoelasticity and biochemical characteristics using optical measurement. In this research, an optical method of evaluation of the third function of articular cartilage, lubrication, was designed. We strategically focused on the hyaluronic acid, which performs the function of lubrication, has specific charge state distribution. We used gold nanoparticles with various surface modifications. As results, we could characterize their charge spectroscopically. This spectroscopic measurement method has a possibility of sharing with the method of biochemical analyses of extracellular matrix of articular cartilage. Therefore, we found the potential to evaluate lubrication and biochemical characterization of the articular cartilage simultaneously.

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  • Study on Hydrogen Storage Properties of Polyhedral Palladium Nanoparticles

    Grant number：26620059  2014.4 - 2016.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    Teranishi Toshiharu

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    Grant amount：\3900000 （ Direct Cost: \3000000 、 Indirect Cost：\900000 ）

    Six kinds of single crystalline cubic Pd nanoparticles with sizes of 6.9, 10, 12, 15, 21, and 39 nm were synthesized to investigate the size- and crystallinity-dependent hydrogen storage/release properties of the Pd nanoparticles. It was found that the hydrogen atoms once stored in the smaller Pd nanoparticles are thermodynamically more stable. On the other hand, it was demonstrated that the newly synthesized hexagola Pd nanodisks showed the localized surface plasmon resonance in the visible to near-infrared region and that the localized surface plasmon enhanced the catalytic activity of the Pd nanodisks for Suzuki coupling reactions.

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  • Study on Correlation Between the Structure and Hydrogen Storage Properties of Palladium Nanoparticles

    Grant number：24655121  2012.4 - 2014.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    TERANISHI Toshiharu

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    Grant amount：\4030000 （ Direct Cost: \3100000 、 Indirect Cost：\930000 ）

    Palladium (Pd) black and three kinds of single crystalline cubic Pd nanoparticles with sizes of 12, 20, and 40 nm were synthesized to investigate the size-dependent hydrogen storage/release properties of the Pd nanoparticles. A hydrogen storage capacity of Pd nanoparticles is identical to that of Pd black, although it was found that the hydrogen atoms once stored in the Pd nanoparticles are thermodynamically more stable than those in the Pd black. Both entropy and enthalpy changes of hydrides and in-situ XRD measurements support the above observation. On the other hand, the single crystalline octahedral Pd nanoparticles have the similar hydrogen storage/release properties to the Pd black.

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  • Development of Structure-specific Energy Materials Using Hetero-structured Nanoparticles

    Grant number：23245028  2011.4 - 2014.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    TERANISHI Toshiharu, SAKAMOTO Masanori

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    Grant amount：\51090000 （ Direct Cost: \39300000 、 Indirect Cost：\11790000 ）

    L10-FePd/alpha-Fe nanocomposite magnets with various hard/soft volume fractions were formed by annealing Pd/gamma-Fe2O3 heterostructured nanoparticles (NPs) and pure Pd NPs. The sample with a hard/soft volume ratio of 82/18 formed by annealing at 773 K had the largest maximum energy product (10.3 MGOe). The formation of an octahedral shape was found to further increase the magnetic properties. As for the photocatalysts for overall water splitting under visible light, when the size tuned Rh NPs were applied for use as cocatalysts in a photocatalyst (solid solution of GaN and ZnO), it was demonstrated that smaller Rh cores gave higher activity than the larger ones. Then, the CoxMn3-xO4 mixed oxide NPs were studied as a new cocatalyst for photocatalytic water oxidation. The photocatalytic activity of the CoxMn3-xO4 NPs-loaded photocatalyst for overall water splitting was 2.6 times higher than that without the CoxMn3-xO4 NPs.

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  • Elucidation of Crystal Structure-Dependence of Large Palladium Nanoparticles on Hydrogen Storage Properties

    Grant number：22655040  2010 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Exploratory Research

    TERANISHI Toshiharu

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    Grant amount：\3360000 （ Direct Cost: \3000000 、 Indirect Cost：\360000 ）

    To clarify the critical size of Pd nanoparticles in which strongly-bound hydrogen can exist, amineprotected Pd nanoparticles were successfully synthesized in the 2-5 nm range by an in-situ homoepitaxial growth of the Pd nuclei. Investigation on hydrogen storage properties of multiplytwinned Pd nanoparticles(15 and 40 nm), single crystalline hexahedral Pd nanoparticles(10 nm), and polycrystalline Pd nanoparticles(6. 6 nm) revealed that the hydrogen storage/release behaviors are greatly dependent on the crystal structure, shape, and size of the Pd nanoparticles and the hydrogen atoms are strongly bound in all particles.

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  • ヘテロ接合ナノ粒子を用いた交換結合ナノコンポジット磁石の創成

    Grant number：20655027  2008 - 2009

    日本学術振興会  科学研究費助成事業  挑戦的萌芽研究

    寺西 利治

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    Grant amount：\3300000 （ Direct Cost: \3300000 ）

    軟磁性相および硬磁性相からなる交換結合ナノコンポジット磁石は、従来の単相磁石より大きなエネルギー積を有する永久磁石であり、電気自動車用モーターへの搭載など応用分野は極めて広い重要な先進材料である6交換結合ナノコンポジット磁石創成の重要な点は、高い飽和磁化を示す軟磁性相と高い保磁力を示す硬磁性相間に効果的な交換結合相互作用を発現するため、バルク内で両相の大きさ、空間配置をナノスケールで制御することである。本年度はまず、5nm Pdコアを有するPd/γ-Fe_2O_3ヘテロ接合ナノ粒子(Fe/Pd=8/2,mol/mol)と5nm Pdナノ粒子の混合物のfct-FePd/α-Feナノコンポジット磁石への構造変態熱処理条件について検討した。Fe/Pd体積比を8/2～5/5で調整した試料を、還元雰囲気(Ar+4%H_2)下、熱処理温度450～600℃にて熱処理したところ、いずれの試料もfct-FePd/α-Feナノコンポジット磁石へ構造変態し、500℃還元熱処理において10MGOeを超える高い最大エネルギー積が発現することを見出した。次に、貴金属フリーナノコンポジット磁石の創成に向け、粒径5～10nmの単分散Coナノ粒子の合成について検討した。安息香酸コバルトおよびオレイン酸をフェニルエーテルに溶解後、トリオクチルホスフィンを添加し200℃で反応することにより、Coナノ粒子が生成することを見出した。さらに、本手法を他のヘテロ接合ナノ粒子合成へ広く展開することができた。

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  • Creation of Enhanced Photoelectric Fields Based on Nanoparticle Superlattices for Novel Chemical Reactions

    Grant number：19049007  2007 - 2010

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Priority Areas

    TERANISHI Toshiharu, KANEHARA Masayuki, EGUCHI Miharu

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    Grant amount：\48200000 （ Direct Cost: \48200000 ）

    We have succeeded to tune the localized surface plasmon resonance (LSPR) wavelength of conductive nanoparticles (NPs) over the ultraviolet to near-IR (UV-NIR) region. The methods include the changing the size of the icosahedral Pd NPs (LSPR in the UV-NIR region), using in-phase and antiphase surface plasmon coupling with octahedral Au NPs (LSPR in the visible region), and altering the carrier density in indium tin oxide NPs (LSPR in the NIR region) without changing the particle shape. We have also demonstrated the electron transfer from Au NPs to the conduction band of semiconductor NPs using Au/semiconductor (ZnS, CdS, CdSe) heterostructured NPs.

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  • Elucidation of Electron Transport Properties of Small Gold Nanoparticle Superlattices Connected with Parallel and Perpendicular π-Conjugated System

    Grant number：19205016  2007 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    TERANISHI Toshiharu, KANEHARA Masayuki

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    Grant amount：\45500000 （ Direct Cost: \35000000 、 Indirect Cost：\10500000 ）

    When the small Au nanoparticles are used as single-electron islands for single-electron devices operated at room temperature, the tunneling resistance of organic ligands should be low as well as the quantum resistance. We developed a facile method to control the size of Au nanopaticles even by using hexanethiol with the tunneling resistance of～MΩ. For further reduction of the tunneling resistance, various macrocyclic π-conjugated ligands were adsorbed on the Au nanoparticles in a face-coordination fashion. Very interestingly, we found quite unique optical properties as well as drastic reduction of the tunneling resistance due to the electronic interaction beween the π-orbitals and Au orbitals. We also succeeded in the large-scale synthesis of Au_<25> clusters. On the other hand, small Au nanoparticles were found to exhibit single-electron transport property and Coulomb blockade at room temperature.

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  • 多座チオール配位子空間に閉じ込められた微細金ナノ粒子の特異電子・光物性

    Grant number：18033007  2006 - 2007

    日本学術振興会  科学研究費助成事業  特定領域研究

    寺西 利治, 金原 正幸

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    Grant amount：\3400000 （ Direct Cost: \3400000 ）

    静電容量の小さい粒径2nm以下の金属ナノ粒子では、室温でのクーロンブロッケード現象が発現するため、ナノ粒子が空間規則配列した一次元・二次元超格子は、単電子トンネル効果を利用したナノ電子デバイスへと展開できる。本研究では、配位子殻厚さの劇的な減少および伝導パスへのπ電子雲垂直挿入を実現するため、ポルフィリン環を金ナノ粒子表面に平行に配位させた系について検討した。ポルフィリン誘導体を設計・合成後、クエン酸保護Auナノ粒子との配位子交換反応により、ポルフィリン誘導体Auナノ粒子を合成した。ポルフィリン誘導体Auナノ粒子のUV-visスペクトルがら、ポルフィリン環のSoret帯のモル吸光係数が配位子単独の1/5〜1/15に減少し、ピーク位置がわずかに長波長シフトした。さらに、ポルフィリン環-金表面間距離がポルフィリンの電子構造や構造に影響を及ぼすことを明らかにした。微細Auナノ粒子の電子物性として、Au-TiをコートしたSiO_2カンチレバー上に作製した微細Auナノ粒子超格子を86MHzで振動させることにより、ナノ粒子を通しカンチレバー-STMプローブ間で単電子輸送ができることを実証するとともに、単電子トンネルデバイス作製に向け、EBリソグラフィーと無電解金メッキ法を併用することで5nmギャップ金電極の作製に成功した。さらに、チオール配位子で安定化されたAu_<25>クラスターの耐エッチング性が極めて高いことを実証し、表面金原子がすべてチオールと結合していることを明らかにした。

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  • 溶媒フリー合成法による半導体ナノ粒子の構造制御と大量合成

    Grant number：17655081  2005 - 2006

    日本学術振興会  科学研究費助成事業  萌芽研究

    寺西 利治, 金原 正幸

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    Grant amount：\2900000 （ Direct Cost: \2900000 ）

    可視光領域にバンドギャップを持つ半導体ナノ粒子は、発光ダイオードなどの受光・発光素子あるいは光電変換素子として極めて重要な位置にあり、ナノスケールでの構造制御および大量合成技術の開発が切望されている。本研究では、可視領域に発光波長を有するCdSナノ粒子、ならびに、近赤外領域に発光波長を有するCU_xSナノ粒子に焦点を当て、金属前駆体および含カルコゲン有機分子の混合物を不活性ガス下で熱処理することにより、半導体ナノ粒子の一次構造(粒径、形状)を制御し、大量合成することを目的とした。
    新規硫化物半導体の新規合成法の確立のため、ステアリン酸カドミウム、1,3-ジブチルチオ尿素、1-ドデカンチオール、オレイルアミンのη-オクチルエーテル溶液を230℃に加熱することにより、CdSナノ粒子を合成した。反応時間を変化させることにより、六方晶構造を有する単分散なCdSナノ粒子が得られ、'その粒径を1.5〜3.8nmの範囲で制御することができた。これは、アミンによる1,3-ジブチルチオ尿素のC-S結合開裂の反応性が比較的低く、核形成段階をうまく制御できたためと考えられる。さらに、得られたCdSナノ粒子は量子収率60%を示し、410〜460nmの範囲でバンド端発光の発光波長を制御することが可能であった。同様の手法により、単分散CU_xSナノ粒子の合成にも成功し、ディスク状の粒子が生成していることが明らかとなった。チオールおよび1,3-ジブチルチオ尿素の添加量あるいは反応時間により、Cu_<1.75>Sナノディスクの粒径を5〜15nmの範囲で制御することが可能であり、結晶構造ならびに構造特異的な配列形成を明らかにした。
    加えて、二種類の硫化物半導体からなるCo_9S_8/PdS_xナノどんぐりの不安定Co_9S_8相の融合により、世界で初めて三つの相が異方的に相分離したPdS_x/Co_9S_8/PdS_xナノピーナッツの選択的合成に成功した。

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  • 多座チオール配位子空間を利用した超微細金ナノ粒子の合成と電子物性

    Grant number：17036006  2005

    日本学術振興会  科学研究費助成事業  特定領域研究

    寺西 利治, 金原 正幸

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    Grant amount：\1400000 （ Direct Cost: \1400000 ）

    次世代の超高速・超低消費電力ナノ電子デバイス開発には、ソース-ドレイン間に対称性の低い金属ナノ粒子超格子を作製し粒子間のトンネル抵抗を低くする(粒子間距離を短くする)ことが必要不可欠である。本研究では、配位子殻の厚さを薄くするために、金ナノ粒子表面に対しポルフィリン環を平行に配置させる手法について検討した。ポルフィリン環を金ナノ粒子表面に平行に配置させるため、ポルフィリン環のメソ位を修飾した配位子を設計・合成し、合成した配位子で保護された金ナノ粒子の構造および光学特性を評価した。また、単一微細Auナノ粒子のSTS測定によるトンネル抵抗の評価、nc-AFMによるAuナノ粒子上の単一電子の観察も行った。
    Auナノ粒子の保護配位子として、ポルフィリン誘導体であるmeso-5,10,15,20-tetrakis(2-thioacethylphenyl)porphyrinおよびmeso-5,10,15,20-tetrakis(2-thioacethylmethylphenyl)porphyrinを設計・合成し、Auナノ粒子の合成を行った。UV-visスペクトルから、ポルフィリン環がナノ粒子表面に対して平行に位置しており、ポルフィリン環とAuナノ粒子表面間の距離がポルフィリン環の電子状態や構造に影響していることが分かった。ナノデバイスの新規構成単位と期待されるAuクラスターの選択的大量合成では、ホスフィン保護AU_<11>クラスターとチオールとの配位子交換反応により、Au_<25>クラスターの選択的大量合成に成功した。Auナノ粒子の電子物性として、粒径2nm程度のアルカンチオール保護Auナノ粒子のSTS測定により、アルカンチオール層のトンネル抵抗がヘキサンチオールからオクタンチオールへの変化で1桁増加することを明らかにした。また、nc-AFMによる力測定により、Auナノ粒子上の単一電子観察に成功した。

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  • 溶媒フリー合成法による無機ナノ粒子の構造制御と大量合成

    2004

    その他の研究制度 

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    Grant type：Competitive

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  • Structural control and mass production of inorganic nanoparticles using solvent-free synthesis

    2004

    The Other Research Programs 

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    Grant type：Competitive

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  • プラズモン金属ナノ粒子の構造制御と新奇化学反応への応用

    2004

    その他の研究制度 

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    Grant type：Competitive

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  • Structural Control of Plasmonic Nanoparticles and Their Application to Novel Chemical Reactions

    2004

    The Other Research Programs 

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    Grant type：Competitive

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  • 金属ナノ粒子低次元超格子を用いたナノ電子・磁気デバイスの創製

    Grant number：15681009  2003 - 2005

    日本学術振興会  科学研究費助成事業  若手研究(A)

    寺西 利治

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    Grant amount：\29510000 （ Direct Cost: \22700000 、 Indirect Cost：\6810000 ）

    金属ナノ粒子を組織化すると、量子サイズ効果を利用した低消費電力・低発熱のナノ電子デバイスを構築することができる。さらに、金属ナノ粒子の二次元組織化技術は、Tbits/inch^2級の超高密度磁気記録媒体の創製にも極めて有用である。本年度は、デバイス構成単位となるAuクラスターの選択的大量合成、単一微細Auナノ粒子のSTS測定によるトンネル抵抗の評価、nc-AFMによるAuナノ粒子上の単一電子の観察、Auナノ粒子二次元超格子の粒子間距離低減に向けたポルフィリン誘導体保護Auナノ粒子の合成・キャラクタリゼーションについて検討した。また、高い一軸結晶自記異方性および保磁力を有するFePtナノ粒子の溶媒フリー合成法の開発を行った。
    ナノデバイスの新規構成単位と期待されるAuクラスターの選択的大量合成では、ホスフィン保護AU_<11>クラスターとチオールとの配位子交換反応により、Au_<25>クラスターの選択的大量合成に成功した。Auナノ粒子の電子物性として、粒径2nm程度のアルカンチオール保護Auナノ粒子のSTS測定により、アルカンチオール層のトンネル抵抗がヘキサンチオールからオクタンチオールへの変化で1桁増加することを明らかにした。また、nc-AFMによる力測定により、Auナノ粒子上の単一電子観察に成功した。Auナノ粒子の保護配位子として、ポルフィリン誘導体であるmeso-5,10,15,20-tetrakis(2-thioacethylphenyl)porphyrinおよびmeso-5,10,15,20-tetrakis(2-thioacethylmethylphenyl)porphyrinを設計・合成し、Auナノ粒子の合成を行った。UV-visスペクトルから、ポルフィリン環がナノ粒子表面に対して平行に位置しており、ポルフィリン環とAuナノ粒子表面間の距離がポルフィリン環の電子状態や構造に影響していることが分かった。
    次に、磁性ナノ粒子であるFePtナノ粒子の合成を、無溶媒条件下、オレイン酸、オレイルアミン存在下、鉄および白金アセチルアセトナートのポリオール還元により行った。その結果、磁気デバイスの実用サイズである6nmの単分散FePtナノ粒子が得られ、その二次元超格子は高い熱安定性を示した。

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  • サブナノスケール金属ナノ粒子の電子・光物性

    2003

    その他の研究制度 

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    Grant type：Competitive

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  • Electronic and optical properties of subnanometer-scale metal nanoparticles

    2003

    The Other Research Programs 

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    Grant type：Competitive

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  • 自己組織化磁気量子ドット形成による磁気メモリ開発

    Grant number：13875004  2001 - 2003

    日本学術振興会  科学研究費助成事業  萌芽研究

    堀 秀信, 山本 良之, 寺西 利治

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    Grant amount：\2300000 （ Direct Cost: \2300000 ）

    この研究の目的はナノ粒子にすると強磁性金属はもちろん金や白金など、通常磁性とは関係ない金属も自発磁化を生じる事に注目し、それを生かした磁気メモリ効果を持つ素子を創製することにある。そのために13年度はPd, Pt,Au,Pd/Ni金属微粒子に対する最適な粒径をしらべるため、磁性の粒径変化を詳しく調べた。特に「伝導性が大きいと思われ、原子状態での偏極が無いが粒径の増大にともなって偏極が出現し、電子の移動しやすさ(電気伝導性の良さ)の点からAu微粒子を重視するか、原子状態でスピン偏極しており粒径が大きくなるにつれて偏極が減少していくPt微粒子か、電荷の変化による磁性が敏感に変化すると考えられるPd微粒子、すでに巨大な磁気偏極をもちそのままバルクで強磁性に移行していくと思われるPd/Ni合金微粒子がよいのか?」について最適なものが何かを調べた。われわれの微粒子生成の方法は高分子の中に直径が2〜5ナノの微粒子を生成する方法である。この方法で分布がシャープで、なるべく磁性が強いもの、さらに電場、磁場に対する応答性が大きいものをねらって基礎特性を調べた。14年度は、自己組織化による微粒子の2次元配列膜の作成とその物性測定を重点的に行った。Au微粒子では基板上に溶液を滴下するだけで2次元六方格子状に微粒子が自己配列する現象があり、この膜を微細電極上に組み込むことで磁気メモリ素子形成を容易に行うことができる。また、大面積の微粒子超格子膜を得るためにLB法による膜形成を試み、成膜条件の最適化を行った。15年度はLB法で超格子状に並べた金微粒子を、半導体基板上にリソグラフィーで形成した微細電極に組み込み、伝導測定を行った。室温から低温までのI-V曲線を測定したところ、50K以下でクーロンブロッケイドによる明瞭なゼロバイアス異常を観測し、単電子デバイスとしての動作を確認した。電極を強磁性体に変え、クーロンブロッケイド領域でのトンネル磁気抵抗効果を調べ、磁気メモリとしての動作を調べた。

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  • 超単分散金ナノ粒子低次元超格子の創製と単電子トンネル素子への応用

    Grant number：13740392  2001 - 2002

    日本学術振興会  科学研究費助成事業  若手研究(B)

    寺西 利治

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    Grant amount：\2400000 （ Direct Cost: \2400000 ）

    昨年度報告した微細金ナノ粒子の固相熱処理による粒径制御に関して、有機配位子をドデカンチオールからオクタデカンチオールに変えることで、粒径制御範囲を3.4〜9.7nmまで広げることができた。熱処理による粒子の成長は、金の融点効果理論で整理することができ、粒子の合体・成長に必要な粒子表面の融解温度は、粒子自身のそれの半分以下であると結論付けられた。次に、ドデカンチオール保護金ナノ粒子(粒径5.4nm)をLB法にて単層薄膜化し、GaAs上に作製した500nmギャップ金電極間に転写することにより、単層膜内の電子輸送特性を検討した。4.2Kにおいては電子のふるまいはクーロンブロッケードに支配されるが、室温ではオーミックなI-V応答となり、室温でクーロンブロッケード現象を発現するには、粒径2nm以下の微細なナノ粒子が必要であることが分かった。現在、1.5nm金ナノ粒子二次元超格子の大表面積化に成功しており、その電子輸送特性の粒径、粒子間距離依存性を検討中である。
    ナノ粒子二次元超格子の電子輸送特性は、超格子の対称性にも大きく依存すると考えられるため、次に、金ナノ粒子低対称性二次元超格子の創製について検討した。二回対称である平面一次元鎖列については、昨年度までに、ナノスケール山谷構造炭素基板に3.4nm金ナノ粒子溶液を滴下することなどにより達成された。さらに、基板へのナノ粒子溶液の滴下およぴ真空下(〜10^<-3>torr)での熱処理(300-℃)を繰り返すことにより、ナノ粒子は谷方向に選択的に合体・成長し、アスペクト比2程度の金ナノロッド列の作製に成功した。一方、塩基性配位子であるbis-4,4'-(4,4'-dithiobutylbenzyl)-N,N,N',N'-tetraetyl amineを合成し、金ナノ粒子の保護配位子として用いたところ、2.4nmの超単分散金ナノ粒子が得られた。これに1,3,5-ベンゼントリカルボン酸あるいは酢酸を添加し中和後、親水性基板に水溶液として展開することにより、三回対称疑似ハニカムあるいは四回対称正方晶二次元超格子を形成させることに成功した。

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  • Application of ferromagnetic nanoparticle superlattices to nanomagnetic devices

    2000

    Grant-in-Aid for Scientific Research 

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  • 微細Auナノ粒子の自在配列制御と電子輸送特性

    2000

    科学研究費補助金 

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    Grant type：Competitive

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  • 強磁性ナノ粒子超格子のナノ磁気デバイスへの応用

    2000

    科学研究費補助金 

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  • Desirable patterning of small Au nanoparticles and their electron transport properties

    2000

    Grant-in-Aid for Scientific Research 

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  • 剛直な導電性高分子の一次元金属錯体を用いた金属量子細線の創製

    Grant number：11740385  1999 - 2000

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    寺西 利治

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    Grant amount：\2200000 （ Direct Cost: \2200000 ）

    山本らの方法に従い合成した剛直な導電性高分子であるポリピリジン(PPy)について詳細に検討するため、MALDITOF-MS測定を行ったところ、ピリジンユニットが4〜9個重合した4〜9量体が主生成物であることが分かった。合成したPPy存在下、塩化白金(IV)酸をギ酸還元した溶液を炭素基板上に展開すると、基板上に線幅40〜70nmの細線構造が形成し、細線は同一方向に配向していた。しかし、TEM観察から細線は白金ナノ粒子が集合した多結晶構造であることが分かった。さらにこの細線を高分解能TEMで観察した結果、細線表面に原子あるいは分子の規則構造が観察された。その間隔は約0.25nmであり、白金の{111}面間隔(0.227nm)より若干大きいことから、PPyの規則配列であると推察される。以上の結果から、溶液中で生成した白金ナノ粒子は細線構造を形成していないが、基板への展開・溶媒の乾燥過程において、PPyの配列に伴い白金ナノ粒子が直線上に集合し配線構造を形成したものと考えられる。
    一方、対照実験として、ランダムコイル状高分子であるポリアクリル酸ナトリウム塩およびポリ(N-ビニル-2-ピロリドン)存在下で、塩化白金(IV)酸の水素還元を行った。その結果、基板上での高分子の配列がないため、予想通り白金ナノ粒子は基板上で細線構造は形成しなかったが、水素によるPt^<4+>の還元速度が非常に遅いため(10時間で還元終了)、白金ナノ粒子は熱力学的に最も安定な{111}面に囲まれた正四面体が主生成物となった。すなわち、アルコール等の強い還元剤を用いると速度論で制御されたcubo-八面体が、弱い還元剤では熱力学的に安定な正四面体が主に生成することが分かり、Pt^<4+>イオンの還元速度の制御により粒子形状を制御できることが明らかとなった。

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  • Electronic states of metal nanoparticles investigated by far infrared spectroscopy

    Grant number：11640312  1999 - 2000

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    IWASA Yoshihiro, TERANISHI Toshiharu, MIYAKE Mikio, MITANI Tadaoki

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    Grant amount：\3300000 （ Direct Cost: \3300000 ）

    The most important result of this project is the successful synthesis of monodispersed nanoparticles of platinum, palladium, and gold. For organic lgands which stabilizes metal nanoparticles, we used PAA or PVP for PT and Pd, while DT was useful for gold systems.Particularly, we have succeeded in fabricating two-dimensional monolayers of gold nanoparticles forming a hexagonal lattice. Furthermore, two-dimensional superlattice and three-dimensional aggregates were successfully constructed with use of interligand bridging by Fe^2 ions. We have also obtained important information on magnetic and spectroscopic properties. We found several series of absorption peaks in the far infrared spectra, which are not assigned to the absorption of Organic ligands. These peaks are most likely attributed to the transitions between quantized electronic levels in nanoparticles. A quantitative analysis based on the Woods-Saxon potential is underway,

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  • 組織レベルでの表面アロイ化による炭素材料の新機能の創出

    Grant number：11124217  1999

    日本学術振興会  科学研究費助成事業  特定領域研究(A)

    三宅 幹夫, 寺西 利治

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    Grant amount：\2000000 （ Direct Cost: \2000000 ）

    黒鉛に代表されるsp^2炭素の六角網面に官能基を導入する反応手法として、フェロセンの配位子交換反応が適用できることをこれまでに明らかにした。本研究は、従来得たこのような知見を基礎とし、配位子交換反応を多様なsp^2炭素や各種メタロセンの反応に拡張し、その一般的有効性を実証すると共に、主として触媒への機能展開を図り、以下の成果を得た。
    (1)カーボンブラック、高配向熱分解黒鉛、活性炭素繊維(ACF)、カーボンナノチューブなど多様な炭素試料に対してフェロセンの配位子交換反応が進行することを明らかにした。
    (2)ニッケロセン、コバルトセンなどフェロセン以外の多様なメタロセンでも配位子交換反応が進行することを明らかにした。
    (3)活性炭素繊維のフェロセン配位子交換生成物(ACF-Fe)の加熱に伴う炭素の状態変化についてラマン散乱測定によって評価した結果、表面に導入したFe種が黒鉛化触媒として有効に作用することを明らかにした。特に、ACF-FeをKBH_4還元した後に加熱処理すると結晶性成分の割合が大きく増加した。
    (4)ACF-FeをCO_2賦活し、細孔径、細孔容積、比表面積を測定した結果、塩酸処理後にACF-FeをCO_2賦活すると、これらの値が大きく増加することを明らかにした。本試料では、表面Fe種が賦活触媒として有効に作用することが知られている塩化鉄に転化したためであると推察される。
    (5)サイクリックボルタンメトリー法にて各種CO_2賦活生成物の比容量を評価した結果、塩酸処理後にACF-FeをCO_2賦活した試料が、電気二重層キャパシタとして最大の比容量を与えることが判った。

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  • 高分子ハイブリッド化による粒径精密制御した金属超微粒子の調製とその配列制御

    Grant number：10126224  1998

    日本学術振興会  科学研究費助成事業  特定領域研究(A)

    三宅 幹夫, 寺西 利治

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    Grant amount：\2000000 （ Direct Cost: \2000000 ）

    粒径の揃った金属超微粒子を二次元組織化させると、超微粒子単独では認められない新たな材料物性の発現が期待できる。本研究は、金属超微粒子が負に帯電していることに加えて、保護高分子にアニオン性官能基(カルボキシル基)を導入し、そのクーロン力を利用した電気泳動法によって白金超微粒子の二次元組織化について検討し、以下の成果を得た。
    塩化白金酸水溶液に保護高分子であるポリアクリルアミド-ポリアクリル酸共重合体を加え、水素化ホウ素カリウムによって室温で2時間還元し、白金超微粒子を調製した。こうして得た平均粒径21Å、標準偏差3.5Åの単分散白金超微粒子の水溶液を試料として用い、平行板電極間に直流電圧を印加して電気泳動させた。陽極上にTEM観察用炭素被覆銅グリッドを取り付け、その上に析出した白金超微粒子をTEM観察することで、配列状態を評価した。
    白金超微粒子水溶液をpH=9に調整して電気泳動をおこなった結果、中性の高分子保護剤ポリ(Nビニル-2-ピロリドン)を用いた場合よりも低電場で陽極上へ白金超微粒子が析出することが判った。電場強度(0.5〜2.5V/cm)、電場印加時間(0〜60分)、超微粒子濃度(0.2〜2.0mmol)の増加に伴って白金超微粒子の陽極上への析出量が増加する傾向にあったが、規則的な組織化状態は観察されなかった。そこで、炭素基盤と親和性を有するピリジンを添加し、ピリジンと保護高分子のカルボキシル基を水素結合させることで、より効果的な組織化を計った。ピリジン添加量を変え、2.5Vの電場を0〜60分間印加した結果、ピリジン/カルボキシル基=0.2(mol/mol)で規則性を有する配列状態が一部認められた。

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  • 組織レベルでの表面アロイ化による炭素材料の新機能の創出

    Grant number：10137220  1998

    日本学術振興会  科学研究費助成事業  特定領域研究(A)

    三宅 幹夫, 寺西 利治

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    Grant amount：\1700000 （ Direct Cost: \1700000 ）

    黒鉛に代表されるsp2炭素は、縮合多環芳香族分子(ラメラ)が層状に積層した構造を有している。化学的に活性な官能基を持たないラメラ面に官能基を導入する反応手法として、フェロセンの配位子交換反応が適用できる可能性をこれまでに明らかにした。本研究は、配位子交換反応の進行をさらに検証すると共に、反応条件を検討して錯体生成率の向上を計った。さらに、本反応を利用した機能展開の可能性についても検討し、以下の成果を得た。
    フェロセンの配位子交換反応は、三口フラスコ内にシクロヘキサンまたは炭酸プロピレン溶媒、炭素試料1g、塩化アルミニウム、金属アルミニウム粉末を種々の割合で仕込み、80℃で8〜24時間撹伴することでおこなった。
    炭素試料としてカーボンブラック(CB)およびカーボンナノチューブ(CN)を用いて得た配位子交換反応生成物をXPS分析した結果、いずれもFe2p3/2ピークは、フェロセン(707.7eV)よりも高エネルギー側の708.0eVに認められた。高配向熱分解黒鉛試料の配位子交換生成物を、ダイレクトインサーションプローブを用いたGCQMSで分析した結果、シクロペンタジエニル基とFeとの質量和に対応するm/z=121に基準ピークが認められた。元素分析により配位子交換反応生成物は元の炭素試料よりもH/Cが大きく増加した。これらの結果は、いずれも、錯体の形成を支持している。反応条件を検討した結果、塩化アルミニウムの添加割合が多い程、CB配位子交換生成物の収率が増加する傾向にあった。溶媒として炭酸プロピレンを用いると、シクロヘキサン中よりも高収率で錯体が生成した。CNの配位子交換生成物をメタノール中で還元すると、チューブ内にFe金属が内包されることが明かとなった。さらに、CB配位子交換生成物の磁気特性についても知見を得た。

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  • 希薄パラジウム合金超微粒子の巨大磁気モーメントの解析と磁性薄膜への展開

    Grant number：09740519  1997 - 1998

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    寺西 利治

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    Grant amount：\2300000 （ Direct Cost: \2300000 ）

    昨年度までに、5シェル構造の単分散Pd超微粒子(25Å,Magic number=561)に、Pd原子561個に対しNi原子を1〜561個の範囲で順次析出させ磁気測定を行った結果、析出Ni量の増加に伴う巨大磁気モーメントの増大が観測され、巨大磁気モーメントの誘起が超微粒子のバンド構造変化と密接に関係すると考えられた。本年度は、5シェル構造のPd超微粒子にCo原子を順次析出させ、希薄Pd-Co超微粒子を合成するとともに、Co原子により誘起される巨大磁気モーメントの大きさを検討することに焦点を当てた。ポリ(N-ビニル-2-ピロリドン)存在下、エタノール/水(1/4,v/v)中でH_2PdCl_4を還元し25ÅPd超微粒子を合成後、溶媒を留去し1-プロパノールに再分散させた。次に、CoCl_2・6H_2Oの1-プロパノール溶液を加え凍結脱気後、窒素気流中で還流することによりCo^<2+>を還元し、Pd超微粒子にCo原子を析出させた。Pd-Ni超微粒子では、仕込んだNi^<2+>がほぼすべて還元されたのに対し、Pd-Co超微粒子では仕込みのCo^<2+>の40〜60%が還元された。結果として、Pd原子561個に対しCo原子を1〜20個の範囲で順次析出させることに成功した。Pd超微粒子不存在下ではCo^<2+>の還元は進行しないことから、Pd超微粒子がCo^<2+>還元の触媒となっていると考えられる。これらの希薄Pd-Co超微粒子の平均粒径および標準偏差は、単分散Pd超微粒子のものとほとんど変わらず、いずれも23〜24Å平均粒径を有していた。
    SQUID装置を用いてPd-Co超微粒子(561/12,561/20)の磁気モーメントを測定したところ、Pd-Ni超微粒子と同様にCoによる巨大磁気モーメントが観測され、析出Co量の増加に伴い磁気モーメントの増加がみられた。現在、さらにCo含量の多いPd-Co超微粒子の磁気測定およびキャストによる磁性薄膜への展開について検討中である。

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  • 高分子ハイブリッド化による粒径精密制御した金属超微粒子の調製とその配列制御

    Grant number：09232226  1997

    日本学術振興会  科学研究費助成事業  重点領域研究

    三宅 幹夫, 寺西 利治

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    Grant amount：\2200000 （ Direct Cost: \2200000 ）

    本研究ではまず、保護高分子の官能基の種類(シアノ基、メルカプト基)及び量がAu超微粒子の粒径や粒径分布に及ぼす影響を検討した。アクリロニトリルとN-ビニル-2-ピロリドンの共重合体を種々のモノマー比でラジカル重合により合成し、HAuCl_4のKBH_4還元により生成するAu超微粒子の保護剤として用いたところ、共重合体中のアクリロニトリル量が増加するに従い、Au超微粒子の平均粒径及び標準偏差は小さくなった。次に、ポリアクリロニトリル(PAN)を保護剤として用いると、PAN添加量の増加に伴いAu超微粒子の平均粒径及び標準偏差は小さくなり、26Åで一定になった。そこで、シアノ基の保護機構を明らかにするために、PAN及びKBH_4還元前後の試料のXPS測定を行った。その結果、シアノ基は還元前のAuCl_4^-および還元後のAu超微粒子の表面Au原子と電子的相互作用していることが明らかとなり、核生成、成長過程においてシアノ基とAuとの相互作用の強さが、Au超微粒子の微細化および単分散化に大きく寄与することが示唆された。さらに、25Å以下のAu超微粒子を合成するために、Auと極めて親和性の高いメルカプト基を有する高分子、メルカプトメチルスチレン-N-ビニル-2-ピロリドン共重合体(MMS-NVP,[MMS]=3mol%)を合成した。MMS-NVPをAuに対し40倍モル以上添加することにより、従来、液相還元では困難とされてきた20Å以下のAu超微粒子の合成に成功した。
    Au超微粒子を基板上に二次元配列させるため、DMF中で単分散PAN保護Au超微粒子(平均粒径27Å)の電気泳動を行った。その結果、印加電圧、電圧印加時間の増加に従いAu超微粒子が陽極上に多く析出する傾向にあったが、Au超微粒子の粒径、形状を保持したまま配列制御を行うには、低電圧で長時間電気泳動を行うことが重要であることが明らかとなった。

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  • 組織レベルでの表面アロイ化による炭素材料の新機能の創出

    Grant number：09243215  1997

    日本学術振興会  科学研究費助成事業  重点領域研究

    三宅 幹夫, 寺西 利治

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    Grant amount：\2400000 （ Direct Cost: \2400000 ）

    多様な特性を有するsp2炭素材料の表面を組織・分子レベルでアロイ化・複合化することによって、触媒、電磁気、分散・接合など新たな材料特性の発現が期待できる。本研究は、反応性官能基の存在しない六角網面の修飾を含め、sp2炭素の表面に官能基を導入する方法の開発を目的とした。
    芳香環エッジの表面修飾反応として、メソフェーズ小球体(球晶)を試料とし、硝酸酸化によって表面に酸性官能基(-COOH、-OH)を導入した。その後、ヘキサン中、室温でアルキルトリクロロシランと反応させ、シリル化を導入した。TC測定の結果、10^<18>個/m^2程度のシリル基が導入されたものと見積れた。酸化球晶は親水性であったが、シリル基の導入により疎水性に転じ、導入した官能基の種類によって表面特性が大きく変化することが判った。
    反応性官能基の存在しない六角網面への表面修飾反応として、カーボンブラック(CB)を試料として用い、塩化アルミニウム、および、アルミニウム存在下、シクロヘキサン還流温度でフェロセンと反応させた。反応生成物のEDX分析によってFeが検出され、希塩酸で洗浄後にもFeが残存した。反応生成物は、また、CBよりもH/C原子数比が増加した。以上の結果より、フェロセンのシクロペンタジエニル基の一つが炭素六角網面と配位子交換した錯体が生成し、官能基導入がおこなえたものと推察される。

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  • ゼオライト系窒素酸化物除去触媒における脱アルミニウム挙動の解析

    Grant number：08232241  1996

    日本学術振興会  科学研究費助成事業  重点領域研究

    佐野 庸治, 寺西 利治, 三宅 幹夫

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    Grant amount：\2200000 （ Direct Cost: \2200000 ）

    NOx除去触媒の一つとして検討されている金属イオン交換ZSM-5ゼオライト触媒においては、ゼオライト骨格構造からの脱アルミニウムにともなう活性劣化が重要な問題となっている。昨年度は水蒸気雰囲気下におけるHZSM-5ゼオライトの脱アルミニウム速度が見掛け上骨格構造中のアルミニウム量の3次に比例することを見い出した。しかし、骨格構造外アルミニウム種の化学的状態や脱アルミニウムにともなうゼオライト細孔容積の変化などの詳細については十分には明らかにされていない。そこで、本年度ではスチ-ミングおよび熱処理により脱アルミニウム率の異なるHZSM-5ゼオライトを調製し、そのFT-IRスペクトルおよび水、窒素の吸着挙動から、水蒸気雰囲気下でのHZSM-5ゼオライトの脱アルミニウム挙動を検討した。
    水蒸気分圧を0.1kg/cm^2とし、処理時間を変えた場合のゼオライトの水酸基領域のFT-IRスペクトルには、橋かけ水酸基および末端シラノール基に基づく3605および3740cm^<-1>付近に新たなピークが観察された。3665および3780cm^<-1>付近のピークはそれぞれゼオライト骨格構造中のアルミニウムの4本のAl-O結合のうち一部の結合が切断されたアルミニウム種、およびゼオライト骨格構造から完全に脱離したAlOOHの水酸基に起因すると考えられている。3665cm^<-1>付近のピーク強度は処理時間6時間まではスチ-ミング時間とともに増加したが、その後徐々に減少し処理時間72時間ではほとんど消失した。3780cm^<-1>付近のピークは3665cm^<-1>付近のピークが観察されたスチ-ミング初期の処理時間2時間では全く観察されなかったが、6時間以降そのピーク強度は増大しその後減少した。このことは、スチ-ミング処理にともなうHZSM-5ゼオライトの脱アルミニウムは、骨格構造中の4本のAl-O結合が一度に加水分解されるのではなく逐次的に加水分解されることを示している。なお、スチ-ミング処理後のゼオライトの細孔容積W_0(N_2)は処理前の値とほとんど同じであり、本実験条件下におけるスチ-ミング処理によるゼオライト骨格構造の破壊はほとんど起こっていないことが明らかとなった

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  • 高分子ハイブリッド化による粒径精密制御した金属超微粒子の調製と配列制御

    Grant number：08246224  1996

    日本学術振興会  科学研究費助成事業  重点領域研究

    三宅 幹夫, 寺西 利治

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    Grant amount：\2400000 （ Direct Cost: \2400000 ）

    微細で粒径の揃った金属超微粒子を調製するため、高分子保護剤の配位子が粒径や粒径分布に及ぼす影響を検討し、さらに、調製した単分散超微粒子を基板上に配列させるため電気泳動法を用いた結果、以下の成果を得た。
    1.高分子ハイブリッド化金属超微粒子の粒径精密制御
    (1)保護高分子としてポリ(N-ビニル-2-ピロリドン)(PVP)およびポリアクリル酸ナトリウム(PAA)存在下でPd超微粒子を調製した。PVPを用いた場合には、PAAよりも、粒径やその分布が全体的に小さく、粒径の極小値を与えるエタノール/水比も両保護高分子で異なり、その作用機構に大きな差異が認められた。
    (2)PVP存在下、還元力の強いKBH_4を過剰量用いると、HAuCl_4からAu超微粒子が調製できた。金原子と親和力の大きいポリアクリロニトリル(PAN)を保護剤に用いると一層微細(28Å)で単分散Au超微粒子が調製できた。
    (3)希土類イオン存在下でのPd超微粒子のアクリル酸に対する水素化触媒活性は、PAAを保護剤とすると増大したが、PVPではそのような効果は発現しなかった。
    (4)ESRにて粒径がマジックナンバーから若干異なるPVP保護単分散Pd超微粒子の電子状態を測定した結果、PVP保護高分子が存在してもPd超微粒子の特殊な電子状態が保持されることが判った。
    2.高分子ハイブリッド化金属超微粒子の配列制御
    (1)PVP保護Pt超微粒子は、粒径の大きい微粒子程、陽極上へ配列し易い傾向にあった。
    (2)電場印加が強い(〜3V)時程、印加時間が長い(〜20分)場合程、PVP保護Pt超微粒子は陽極上へ密に折出した。特に、溶液のPt超微粒子濃度が高いと最密充填に近い形で配列することが判った。

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  • 新規高分子希土類錯体を用いる触媒活性加速効果の研究

    Grant number：08220226  1996

    日本学術振興会  科学研究費助成事業  重点領域研究

    寺西 利治, 三宅 幹夫

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    Grant amount：\1600000 （ Direct Cost: \1600000 ）

    配位性官能基を有するポリアクリル酸ナトリウム存在下、塩化パラジウム酸をアルコール還元することにより、ポリアクリル酸ナトリウムに保護された44Å単分散パラジウム超微粒子の合成に成功した。さらにランタノイドイオンとカルボキシル基との錯形成により、一連のランタノイドイオンをパラジウム超微粒子の近傍に配置することができた。これをアクリル酸の水素化反応に用いたところ、ランタノイドイオン不在の系と比較し反応速度は数倍加速され、アクリル酸濃度に対し0次となった。この事実は、ランタノイドイオンの存在により律速段階であったアクリル酸の拡散速度が加速されたことを示唆しており、ランタノイドイオンによる加速効果は、ランタノイドイオンとヘテロ原子を持つ基質との錯形成による基質濃縮効果が主たる原因であることを示唆している。アクリル酸メチル、アリルアミンおよび1-ヘキセンの水素化において、アクリル酸メチルおよびアリルアミンでは反応速度が加速され、1-ヘキセンでは反応速度に変化がなかったこともまた上述の機構を支持している。
    一方、ポリアクリル酸ランタノイド錯体に保護されたパラジウム超微粒子のXPS測定の結果、ランタノイドイオンとパラジウム超微粒子の共存により、ランタノイドイオンからパラジウム超微粒子への電子移動が起きていることが分かった。この結果より、ランタノイド間の加速効果の差異がパラジウム表面の吸着サイトの変化に由来するものであると推察し、パラジウム表面の吸着水素のTPDスペクトルを測定したところ、ランタノイドイオンが存在する系では水素の脱着温度が高温側にシフトしており、また原子番号の増加に伴い吸着水素がパラジウム上で熱力学的に安定に存在していることが分かった。よって、ランタノイドイオンの存在によりパラジウム超微粒子表面への水素の解離吸着速度が増加し、ランタノイド間に加速効果の差異が生じているものと考えられる。

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  • Functionalization of Carbonaceous Mesophase Spherules

    Grant number：07650936  1995 - 1996

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    MIYAKE Mikio, TERANISHI Toshiharu

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    Grant amount：\2100000 （ Direct Cost: \2100000 ）

    The purpose of the research was to develop functional materials based on carbon particles. Following results are obtained by surface modification of carbonaceous mesophase spherules (spherules) as well as carbon blacks (CB), which expose aromatic edges and hexagonal planes to the surface, respectively :
    1. Surface modification of spherules by the introduction of functional groups
    (1) Samples after introduction of acidic functional groups by oxidation were subjected to silylation reaction by using RSiCl_3. Original spherules and ones after oxidation were hydrophobic and hydrophilic, respectively. They turned to hydrophobic again after the reaction with RSiCl_3, suggesting introduction of RSi group to the spherule surface. Number of RSi groups introduced estimated by TGA was 10^<18>/m^2. On the other hand, CB sustained hydrophilic even after the reaction with RSiCl_3. Thus, few RSi groups are introduced to CB.
    (2) Alkylation reaction was carried out by using strong base (n-BuLi/t-BuOK) to abstract aromatic hydrogen followed by alkylation with alkyl iodides. Numbers of alkyl groups introduced to spherules estimated by the change in H/C ratios were much higher than that introduced to CB,although CB had high specific surface area than spherules. Alkylated spherules dispersed in toluene for a long period and may by applicable to conductive paints.
    2. Surface modification of spherules by the interfacial reactions
    (1) Pd (NH_3)_4^<2+> was supported on the oxidative spherules followed by electroless Ni plating in basic aqueous solutions containing NiSO_4 and Na_2H_2PO_2. The product was covered with Ni thin film completely and its magnetic moment was as high as half to bulk Ni.
    (2) The oxidation spherules were treated in stepwise with Na_2OnSiO_2 in aqueous solution, in benzene, and with (NH_4)_2SO_4 in aqueous solution to proceed interfacial reaction by the formation of W/O emulsion. After the reaction, spherules were covered with silica thin film. The silica film was porous and potentially applicable to a support as a catalyst.

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  • 新規高分子希土類錯体を用いる触媒活性加速効果の研究

    Grant number：07230216  1995

    日本学術振興会  科学研究費助成事業  重点領域研究

    戸嶋 直樹, 寺西 利治

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    Grant amount：\2400000 （ Direct Cost: \2400000 ）

    1)ポリ(N-ビニル-2-ピロリドン)に保護されたパラジウムクラスター分散系触媒を用いて、アクリル酸の常温常圧による水素化を行う場合、希土類の塩を添加すると活性は低下した。しかし、配位能を有するアニオン性高分子であるポリアクリル酸ナトリウムを保護剤として、パラジウムクラスター分散液を調製し、これに塩化ネオジウムなどの希土類塩を添加すると、活性の向上が認められた。
    2)この活性向上の程度は希土類塩の種類および基質の種類により異なる。例えば基質では、アクリル酸やアリルアミンで反応速度は速くなったが、シクロオクテンや1-ヘキセンなどは変化は少なく、場合によっては減速した。これらの事実より、加速効果の主たる要因は、ポリアクリル酸ナトリウムによりパラジウムクラスター近傍に配置された希土類イオンが、基質との親和性により、基質を触媒近傍に濃縮する効果であるものと考えられる。
    3)希土類イオンを添加した高分子保護パラジウムクラスターをX線光電子分光で測定したところ、希土類イオンとパラジウムクラスターの共存により、希土類イオンの結合エネルギーは高エネルギー側に、パラジウムは低エネルギー側にシフトする傾向があることが分かった。これは、希土類イオンからパラジウムクラスターへの電子移動の存在を示しており、しかもその方向は通常の金属イオンとは逆である。この電子的相互作用も、希土類イオンによるパラジウムクラスターの水素化加速効果の一因と考えられる。

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  • ゼオライト系窒素酸化物除去触媒における脱アルミニウム挙動の解析

    Grant number：07242236  1995

    日本学術振興会  科学研究費助成事業  重点領域研究

    佐野 庸治, 寺西 利治, 三宅 幹夫

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    Grant amount：\2200000 （ Direct Cost: \2200000 ）

    NOx除去触媒の一つとして検討されている金属イオン交換ZSM‐5ゼオライト触媒においては、ゼオライト骨格構造からの脱アルミニウムにともなう活性劣化が重要な問題となっている。そこで、本研究では種々の水蒸気分圧下でのスチ-ミング処理にともなうHZSM‐5ゼオライトの脱アルミニウム挙動を固体高分解能NMRを用いて詳細に検討した。
    まず、脱アルミニウム処理後のゼオライト骨格構造中のアルミニウム量を精度よく測定するために、脱アルミニウム処理前の種々のAl/(Si+Al)比のゼオライトの^<27>AlMASNMRスペクトルを測定し、骨格構造中の四配位アルミニウムに帰属される53ppm付近のピークの積分値とAl/(Si+Al)比の関係について調べた。次に得られた検量線(y=‐7.73×10^4x^2+9.98x10^3x+7.49,x:Ai/(Si+Al)比、y:ゼオライト1g当りの53ppmピークの積分値)を用いて脱アルミニウム処理後のゼオライト骨格構造中のアルミニウム量を算出した。骨格構造中のアルミニウム量はスチ-ミング初期において急激に減少し、その後処理時間とともに徐々に減少した。また、脱アルミニウムは水蒸気分圧が高いほど激しく進行した。なお、水蒸気分圧0kg/cm^2の窒素雰囲気下での熱処理の場合には、脱アルミニウムは進行しなかった。これらのことよりのHZSM‐5ゼオライトの脱アルミニウムは水蒸気分圧に著しく影響されることが明らかになったので、脱アルミニウム速度に及ぼす水蒸気分圧の影響について定量的な検討を加えた。その結果、水蒸気分圧0.1〜1kg/cm^2の本実験条件下ではスチ-ミング処理によるHZSM‐5ゼオライトの脱アルミニウム速度は、見かけ上骨格構造中のアルミニウム量の三次に比例することが明かとなった。また、脱アルミニウムの見かけの速度定数と水蒸気分圧の関係から求めた脱アルミニウム速度の水蒸気分圧依存性は約1.5次であることを明かとなった。なお、得られた結果を基に脱アルミニウム機構を提案した。

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  • 単分散金属超微粒子の配列制御と新規物性の探索

    Grant number：07750748  1995

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    寺西 利治

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    Grant amount：\900000 （ Direct Cost: \900000 ）

    本研究ではまず、極めて微細な単分散白金およびパラジウム超微粒子の調製に焦点を当てた。金属超微粒子の粒径および粒径分布は、保護剤および還元剤(アルコール)の種類と量に大きく依存すると考えられる。よって、金属超微粒子調製時にこれらのパラメーターを変化させることにより、より狭い粒径分布を持つ単分散金属超微粒子の調製条件を検討した。アルコールとしてメタノール、エタノールおよび1-プロパノールを用いた結果、白金、パラジウムいずれもメタノール>エタノール>1-プロパノールの順に粒径および標準偏差が小さくなった。これは、還流温度の上昇により核生成速度が増加し、粒子の成長が抑制されたためだと考えられる。一方、混合溶媒中のアルコール濃度に対し、アルコール濃度の増加とともに白金超微粒子の粒径は小さくなったが、パラジウムでは逆におおきくなる傾向を示した。また、保護高分子として用いたポリ(N-ビニル-2-ピロリドン)の添加量の増加に伴い粒径および標準偏差は減少した。結果として、アルコールの種類および濃度、保護高分子の量を変化させることにより、白金およびパラジウム超微粒子の粒径は20〜50Åの範囲で制御可能であることが明らかとなった。このようにして調製した白金およびパラジウム超微粒子の結晶構造を粉末X線回折、電子線回折および高分解能電子顕微鏡にて評価したところ、いずれもバルクと同じfcc構造を有することが明らかとなった。
    電極間距離を2mmに固定した銅板電極を用い、平均粒径41Åの0.6mM単分散白金超微粒子分散液の電気泳動を行ったところ、1〜5Vの範囲では印加電圧、印加時間の増加とともに粒子は電極上に多く析出し、二次元的に配列する傾向を示した。白金超微粒子分散液濃度を0.6mMから6.0mMに変え、同様に電気泳動を行ったところ、白金超微粒子は1Vの電圧を5分間印加するだけで電極上により密に析出し、二次元の最密充填に近い配列状態となった。

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  • 新規高分子希土類錯体を用いる触媒活性加速効果の研究

    Grant number：06241215  1994

    日本学術振興会  科学研究費助成事業  重点領域研究

    戸嶋 直樹, 寺西 利治

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    Grant amount：\2100000 （ Direct Cost: \2100000 ）

    1)まず架橋キレート樹脂に,パラジウムクラスターと希土類金属イオンを配位固定化して,希土類のパラジウムクラスター触媒活性への効果を検討した。30℃1気圧水素下で,アクリル酸の水素化反応を調べたところ,希土類イオンの共存は,アルミニウム(III)イオンと同等以上の触媒活性加速効果を持ち,特に不安定な4f電子を持つ,換言すれば4f電子数が0,7,14以外の希土類イオンで顕著な触媒活性加速効果を示した。
    2)直鎖状で水溶性のポリビニルピロリドンに保護されたパラジウムクラスターは,オレフィンの水素化触媒として高活性である。この系に,架橋キレート樹脂系で高い加速効果を示したネオジウムイオンを添加して,同様にアクリル酸の水素化を行ったところ,逆に触媒活性は低下した。パラジウム(II)イオンの還元によるパラジウムクラスターの調製の前にネオジウムイオンを加えても同様に低下した。
    3)ところが,ポリビニルビロリドンの代りにポリアクリル酸ナトリウムを用いて,少量のネオジウムイオンを添加後還元したパラジウムクラスターを触媒に用いると,ネオジウムイオンの共存しなかったものに比べ明らかに触媒活性加速効果を認めた。この結果は,クラスター粒子と希土類イオンの間の距離が加速効果の出現に重要であることを示唆する。

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