Research Institute for Electronic Science, Hokkaido University


LAST UPDATE 2017/02/25

  • 研究者氏名
    Researcher Name

    三澤弘明 Hiroaki MISAWA
    教授 Professor
  • 所属
    Professional Affiliation

    Research Institute for Electronic Science, Hokkaido University

    Green Nanotechnology Research Center
  • 研究キーワード
    Research Keywords

    plasmonic chemistry
Research Subject
Development of highly efficient light energy conversion systems using plasmonic antennae

研究の背景 Background


To realize a future sustainable society, it is important to develop next generation solar cell and artificial photosynthesis systems. On the other hand, the probability of light-matter couplings is very low, so that it is impossible to realize solar energy conversions efficiently using a small amount of substances. Therefore, the development of optical antennae those makes energy-conversion-materials absorb light energy efficiently and their application to solar energy conversion systems are needed.

研究の目標 Outcome


The main objective of the research is to develop efficient photoelectric conversion by infrared light and artificial photosynthesis systems, those were difficult to be developed so far, according to using titanium dioxide or strontium titanate photoelectrodes loading metallic nanostructures as optical antennae capturing and localizing visible and near-infrared light.

研究図Research Figure

Fig. 1. Schematic illustration of the threeelectrode photoelectrochemical cell and the oxidation of water on Au-nanorods (AuNRs)/TiO2 electrode. The inset shows a scanning electron microscope image of AuNRs fabricated on TiO2. Fig.2. Extinction spectrum of Au-NRs fabricated on a single TiO2 crystal measured in water (upper panel) and the corresponding photocurrent action spectrum (IPCE, lower panel).Fig.3. A schematic representation of plasmoninduced water splitting system using two sides of the same SrTiO3 Single-Crystal Substrate.

文献 / Publications

Angew. Chem. Int. Ed., 53, 10350-10354 (2014). Angew. Chem. Int. Ed., 53, 9802-9805 (2014). ACS Photonics, 1, 538-546 (2014). Light: Sci. Appl., 2, e118 (2013).
J. Phys. Chem. Lett., 3, 1248-1252 (2012). J. Phys. Chem. Lett., 1, 2031-2036 (2010). Accounts. Chem. Res., 44, 251-260 (2011).