Effect of suspension media on the structure of TiO2 films prepared by electrophoretic deposition method in dye-sensitized solar cells

Abstract

In the present study, electrophoretic deposition of TiO2 particles (Degussa P-25) from three different media (methanol, ethanol and isopropanol) for the formation of electrodes for dye-sensitized solar cells using bis(tetrabutylammonium) cis-diisothiocyanato-bis(2,2′;-bipyridyl-4,4′-dicarboxylato) ruthenium(II) (N719, Solaronix) as a sensitizer is reported. The UV-Vis spectra of adsorbed dye on the three different layers show that more dye is loaded on the deposition sample in methanol media. The current-voltage (I-V) characteristics of these cells show that for the cell prepared in methanol media, the efficiency is more than other cells (η = 7.06 %, Jsc = 12.9, Voc = 0.75, FF = 0.73). © Iranian Chemical Society 2014.