Effect of Cu(Cr_0.2Al_0.8)₂O₄/TiO₂ Composite Film Electrodes on DSSC Photoelectric Properties

Abstract

Cu(Cr0.2Al0.8)2O4/TiO2composite film electrodes were prepared on FTO glass substrate by screen printing method after Cu(Cr0.2Al0.8)2O4nano-particles were doped in TiO2powers. The characteristics were studied by the X-ray diffraction for the crystalline structure of composite films, UV-Vis diffuse reflectance spectrum instruction for absorption spectrum of composite films and dye sensitized solar cells tester for the performance of DSSC. The results show doping Cu(Cr0.2Al0.8)2O4powers could enhance UV-Vis spectral absorption strength and improve the photoelectric conversion efficiency of the solar cells when the doping content of Cu(Cr0.2Al0.8)2O4is 3％. Compared with pure TiO2film electrodes, the photoelectric conversion efficiency of the solar cells reaches to 3.59％.