The prospective photo anode composed of zinc tin mixed metal oxides for the dye-sensitized solar cells

Abstract The zinc tin mixed metal oxides (MMO) are prepared by calcining the ZnSn layered double hydroxide (LDH) at different temperatures and a series of dye-sensitized solar cells (DSSCs) based on the corresponding MMOs used as photoanode materials are fabricated. The basic parameters are characterized by XRD, SEM, nitrogen sorption analysis and UV–vis absorption spectrum. The photovoltaic performances of DSSCs are measured by monochromatic incident photon-to-electron conversion efficiency (IPCE) and electrochemical method. The cells achieve considerable efficiency as well as circuit density, and the best one reaches 1.28% and 6.60 mA cm −2 when the calcination temperature was 500 °C.