A UV-prepared linear polymer electrolyte membrane for dye-sensitized solar cells

The effects of LiClO4 and LiFS3SO3 on poly(glycidyl methacrylate)-based solid polymer electrolyte and its photoelectrochemical performance in a dye sensitized solar cell consisting of FTO/TiO2–dye/P(GMA)–LiClO4–EC/Pt were investigated. The electrochemical stability of films was studied by cyclic voltammetry (CV). The highest ionic conductivities obtained were 4.2×10−5 and 3.7×10−6 S cm−1 for the film containing 30 wt% LiClO4 and 25 wt% LiCF3SO3, respectively. The polymer electrolytes showed electrochemical stability windows up to 3 V and 2.8 V for LiClO4 and LiCF3SO3, respectively. The assembled dye-sensitized solar cell showed a sunlight conversion efficiency of 0.679% (Jsc=3 mA cm−2, Voc=0.48 V and FF=0.47), under light intensity of 100 mW cm−2.