Photovoltaic properties of TiO2-ZnO composite electrodes for dye-sensitized solar cells

Junichi Hojo, Hui Tong, Shunsuke Shintani, Miki Inada, Yumi Tanaka, Naoya Enomoto

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)


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 currentvoltage 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 TiO 2 electrode. Although the photovoltaic efficiency of ZnO was lower than that of TiO2, TiO2coating 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.

ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
出版ステータス出版済み - 11月 2012

!!!All Science Journal Classification (ASJC) codes

  • 機械工学
  • 産業および生産工学
  • 金属および合金
  • 材料化学


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