Structure Control of Jingle-bell-shaped Nanocomposite Particles and Their Application to Novel Photochemical Reactions

2009 Fiscal Year Self-evaluation Report

• Project Area: Strong Photons-Molecules Coupling Fields for Chemical Reactions
• Project/Area Number: 19049009
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Nagoya University
• Principal Investigator: TORIMOTO Tsukasa Nagoya University, 大学院・工学研究科, 教授 (60271029)
• Project Period (FY): 2007 – 2010
• Keywords: ナノ材料 / 量子ドット / 触媒・化学プロセス / 電子・電気材料 / 半導体ナノ粒子 / 光触媒反応 / コア・シェル構造 / 表面プラズモン共鳴

Research Abstract

半導体粒子を金属粒子と複合化させると、金属粒子の表面プラズモン励起による光電場増強場によって、半導体光触媒反応が高効率で進行すると予想されるが、これら粒子を直接結合させた系では半導体から金属粒子への光誘起電荷移動が並行して進行するために、明確な証拠は未だ得られていない。本研究では、半導体ナノ粒子あるいはこの粒子を内部に持つ中空シェル粒子(ジングルベル型構造体)を金属粒子と結合させた複合体を作製し、その精密構造制御法を確立する。さらにこの複合体粒子のナノ構造が、半導体ナノ粒子の本来持つ光化学特性や光触媒活性に及ぼす影響を解明し、光-分子強結合反応場の構築を目指す。

Research Products

• [Journal Article] Size Control and Immobilization of Gold Nanoparticles Stabilized in an Ionic Liquid on Glass Substrates for Plasmonic Applications (2010)
  • Author(s): T. Kameyama, Y. Ohno, T. Kurimoto, K. Okazaki, T. Uematsu, S. Kuwabata, T. Torimoto
  • Journal Title: Phys. Chem. Chem. Phys. 12 Pages: 1804-1811
  • Peer Reviewed
• [Journal Article] Remarkable Photoluminescence Enhancement of ZnS-AgInS2 Solid Solution Nanoparticles by Postsynthesis Treatment (2010)
  • Author(s): T. Torimoto, S. Ogawa, T. Adachi, T. Kameyama, K. Okazaki, T. Shibayama, A. Kudo, S. Kuwabata
  • Journal Title: Chem. Commun. 46 Pages: 2082-2084
  • Peer Reviewed
• [Journal Article] Electrochemical Deposition of Gold Frame Structure on Silver Nanocubes (2009)
  • Author(s): K. Okazaki, J. Yasui, T. Torimoto
  • Journal Title: Chem. Commun. Pages: 2917-2919
  • Peer Reviewed
• [Journal Article] Stacked-Structure-Dependent Photoelectrochemical Properties of CdS Nanoparticle / Layered Double Hydroxide (LDH) Nanosheet Multilayer Films Prepared by Layer-by-layer Accumulation (2009)
  • Author(s): T. Kameyama, K. Okazaki, K. Takagi, T. Torimoto
  • Journal Title: Phys. Chem. Chem. Phys. 11 Pages: 5369-5376
  • Peer Reviewed
• [Journal Article] Single-Step Synthesis of Gold-Silver Alloy Nanoparticles in Ionic Liquids by a Sputter Deposition Technique (2008)
  • Author(s): K. Okazaki, T. Kiyama, K. Hirahara, N. Tanaka, S. Kuwabata, T. Torimoto
  • Journal Title: Chem. Commun. Pages: 691-693
  • Peer Reviewed
• [Presentation] Photochemical properties of highly luminescent ZnS-AgInS2 solid solution nanoparticles (2009)
  • Author(s): T. Torimoto, et al.
  • Organizer: XXIV International Conference on Photochemistry
  • Place of Presentation: Toledo, Spain
  • Year and Date: 2009-07-24
• [Presentation] Immobilization of gold nanoparticles sputter-deposited in ionic liquids on highly-ordered pyrolytic graphite via a thermal treatment (2009)
  • Author(s): K. Okazaki, et al.
  • Organizer: 3rd Congress on Ionic Liquids (COIL-3)
  • Place of Presentation: Cairns, Australia
  • Year and Date: 2009-06-01
• [Presentation] Layer-by-layer accumulation of ZnS-AgInS2 solid solution nanoparticles and their photoluminescence properties (2009)
  • Author(s): T. Torimoto, et al.
  • Organizer: 215th ECS Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2009-05-25
• [Presentation] Size- and Structure- Dependent Photocatalytic Activities of Silica-Coated Cadmium Sulfide Composite Nanoparticles Having a Jingle Bell Structure (2008)
  • Author(s): T. Torimoto, et al.
  • Organizer: 6th Asian Conference on Electrochemistry (ACEC 2008)
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2008-05-11