Photovoltaic Properties of TiO₂-ZnO Composite Electrodes for Dye-Sensitized Solar Cells

DOI Web Site 参考文献17件 オープンアクセス
  • HOJO Junichi
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • TONG Hui
    Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
  • SHINTANI Shunsuke
    Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
  • INADA Miki
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • TANAKA Yumi
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • ENOMOTO Naoya
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University

書誌事項

タイトル別名
  • Photovoltaic Properties of TiO<sub>2</sub>-ZnO Composite Electrodes for Dye-Sensitized Solar Cells
公開日
2012
DOI
  • 10.2497/jjspm.59.621
公開者
一般社団法人 粉体粉末冶金協会

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説明

Photovoltaic properties of wet-type dye-sensitized solar cells were investigated with emphasis on the structures of two types of TiO2-ZnO composites as photoelectrodes. One was the mixed electrode of TiO2 and ZnO powders. Another was the TiO2-coated ZnO nanorod array prepared by a sol-gel process. The composite films were loaded on a transparent electrode and clacined at 450-500°C, on which dye molecules were adsorbed. The current-voltage characteristics were measured in iodide electrolyte solution under a simulated solar light. The mixed electrode exhibited a significant decrease in current density and photovoltaic efficiency compared to TiO2 electrode. Although the photovoltaic efficiency of ZnO was lower than that of TiO2, TiO2 coating of ZnO nanorod array improved the photovoltaic properties. The addition of triblockcopolymer as pore former in TiO2 coating was effective to increase the photovoltaic efficiency. The control of the concentration of TiO2 slurry was also important for homogeneous penetration into ZnO nanorod array.

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