Photo-induced Charge Separation Based on Localized Surface Plasmons of Metal Nanoparticles

  • TATSUMA Tetsu
    Institute of Industrial Science, The University of Tokyo PRESTO, Japan Science and Technology Agency (JST)

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Other Title
  • プラズモニクス/バイオMEMS  金属ナノ粒子の局在表面プラズモン共鳴を利用した電荷分離とその応用
  • 金属ナノ粒子の局在表面プラズモン共鳴を利用した電荷分離とその応用
  • キンゾク ナノ リュウシ ノ キョクザイ ヒョウメン プラズモン キョウメイ オ リヨウシタ デンカ ブンリ ト ソノ オウヨウ

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Abstract

Photoinduced charge separation is possible at interfaces between Au or Ag nanoparticles and TiO2. The charge separation is based on localized surface plasmon resonance of the metal nanoparticles. The Au-TiO2 system can be applied to visible light-responsive photocatalysts and photovoltaic cells. If Ag is used instead of Au, visible light-induced oxidation and UV light-induced re-reduction of Ag nanoparticles are possible. These new photoelectrochemical processes can be applied to multicolor photochromism and photoelectrochemical actuators based on hydrogels.

Journal

  • Hyomen Kagaku

    Hyomen Kagaku 29 (6), 350-355, 2008

    The Surface Science Society of Japan

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