Change of Dye Bath for Sensitisation of NanocrystallineTiO2Films: Enhances Performance of Dye-Sensitized Solar Cells

[摘要] The photovoltaic performance of the heterolepticH102 andHRD2 sensitizers was measured in DSSC and compared with that of reference N719 under similar fabrication and evaluation conditions. The Dye-Sensitised TiO2electrodes were prepared by staining the electrodes in ethanol bath and 1/1 v/v acetonitrile/tert-butanol (binary liquid) mixture bath separately and the DSSCs based on these sensitizers show that the change of dye bath from ethanol to the binary liquid mixture enhances the photocurrent action spectrum and solar-to-electricity conversion efficiencies, (η). Using ethanol for sensitisation of TiO2electrodes, the efficiencies obtained forH102,HRD2 and N719 are 4.31%, 4.62%, and 5.46%,respectively, while in binary liquid mixture bath, the corresponding values are enhanced to 5.89%, 4.87%, and7.23%, respectively, under comparable conditions.

[学科分类] 电子、光学、磁材料