A dye sensitized TiO2 photoelectrochemical cell constructed with polymer solid electrolyte

We report the first all solid-state dye sensitized TiO2 photoelectrochemical cell with polymer solid electrolyte. Oligoethylene glycol methacrylate was used as a polymer solid electrolyte. Ethylene glycol and lithium iodide were added to it to enhance the performance. In order to make a tight contact with the TiO2 porous film, the polymer solid electrolyte was prepared by radical polymerization after immersing the porous film in the monomer solution. This polymer electrolyte junction cell shows continuous photocurrent. The conversion efficiency of the cell was 0.49% for irradiation of 1000 W/m(2).