Novel Counter Electrode V₂O₅/Al for Solid Dye-Sensitized Solar Cells

High work function material V 2 O 5 with Al as a composite electrode is applied first as counter electrode in solid dye-sensitized solar cell (solid DSC). Such novel counter electrode gives over 2% conversion efficiency, which is comparable with noble Ag counter electrode. In addition, such novel electrode and concept would be widely used as counter electrode in other noniodine-based solid DSCs. The replacement of regular Au, Ag noble metal electrodes gives a way to reduce the cost of solid DSC in large scale production.