Electron Transport in Nano-structured TiO2 Electrodes for Improvement of Dye-sensitized Solar Cells

Shozo YANAGIDA; Takayuki KITAMURA; Mariko KOHMOTO

doi:10.5796/electrochemistry.70.399

Headline

Electron Transport in Nano-structured TiO₂ Electrodes for Improvement of Dye-sensitized Solar Cells

Shozo YANAGIDA, Takayuki KITAMURA, Mariko KOHMOTO

Author information

Keywords: Dye-sensitized Solar Cell, Electron Transport, Nano-structured TiO₂ Electrode, Iodide/polyiodide Redox Electrolyte

JOURNAL FREE ACCESS

2002 Volume 70 Issue 6 Pages 399-401

DOI https://doi.org/10.5796/electrochemistry.70.399

Details

Abstract

Electron transport mechanism in nano-structured TiO₂ electrodes are disclosed and discussed in view of improvement of dye-sensitized solar cells (DSC). Effective electron transport in the TiO₂ electrodes is well explained by ambipolar diffusion of electrons between trap-sites on TiO₂. The specific interaction of cationic species with TiO₂ interfaces plays an important role in charge screening of photo-injected electrons. The effects of shallow trapping sites introduced by fluorine-ion doping are discussed.

Corresponding author

Register with J-STAGE for free!