Enhancement of photogenerated electron transport in dye-sensitized solar cells with introduction of a reduced graphene oxide-TiO 2 junction

Song, Junling; Yin, Zongyou; Yang, Zijiang; Amaladass, Pitchamuthu; Wu, Shixin; Ye, Jun; Zhao, Yang; Deng, Wei Qiao; Zhang, Hua; Liu, Xue Wei

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Enhancement of photogenerated electron transport in dye-sensitized solar cells with introduction of a reduced graphene oxide-TiO 2 junction

Date

2011-09-19

Authors

Song, Junling

Yin, Zongyou

Yang, Zijiang

Amaladass, Pitchamuthu

Abstract

Reduced graphene oxide (rGO) serves as an efficient electron-transport channel between dye molecules and the electrode in a dye-sensitized solar cell due to the formation of an rGO-TiO 2 Schottky barrier junction, which can improve the interface contact between dye and TiO 2 effectively and therefore enhance the photogenerated-electron transport/injection efficiency in the photoanode (see figure).