Current transport mechanism and photovoltaic properties of photoelectrochemical cells of ITO/TiO2/PVC-LiClO4/graphite

Abstract This paper deals with the current transport mechanism of solid state photoelectrochemical cells of ITO/TiO 2 /PVC–LiClO 4 /graphite as well as the physical properties of a component of a device affecting its performance. The principle of operation and a schematic energy level diagram for the materials used in the photoelectrochemical cells are presented. The device makes use of ITO films, TiO 2 films, PVC–LiClO 4 and graphite films as photoanode, photovoltaic material, solid electrolyte and counter electrode, respectively. The device shows rectification. The J sc and V oc obtained at 100 mW cm −2 were 0.95 μAcm −2 and 180 mV, respectively.