Construction of Plasmon-Induced Artificial Photosynthesis and its Dynamics Measured by PEEM

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  • UENO Kosei
    Research Institute for Electronics Science, Hokkaido University
  • SUN Quan
    Creative Research Institution, Hokkaido University
  • MISAWA Hiroaki
    Research Institute for Electronics Science, Hokkaido University

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Other Title
  • プラズモン誘起人工光合成の構築とPEEMによる緩和過程の追跡
  • プラズモン ユウキ ジンコウ コウゴウセイ ノ コウチク ト PEEM ニ ヨル カンワ カテイ ノ ツイセキ

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Abstract

We have successfully developed plasmon-induced water splitting system that operates under irradiation by visible light. Most important feature in this system is based on the use of both sides of the same strontium titanate (SrTiO3) single-crystal substrate without an electric wire connecting the anode and the cathode. The water splitting was induced, even with a minimum chemical bias of 0.23 V due to plasmonic effects based on the efficient water oxidation. Furthermore, we succeeded in visualizing the local field distribution of the localized surface plasmon resonance (LSPR) on gold nanoparticles and elucidating the dynamics of the LSPR by a time-resolved photoemission electron microscopy.

Journal

  • Hyomen Kagaku

    Hyomen Kagaku 35 (12), 668-673, 2014

    The Surface Science Society of Japan

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