Viologen impregnated PVDF with TiO2 nanofiller as a solid polymer electrolyte for dye-sensitized solar cells

Dye-sensitized solar cells were fabricated using viologen impregnated PVDF with TiO2 nanofiller as a solid polymer electrolyte sandwiched in between N3 (cis-di(thiocyanato)N,N′-bis(2,2′-bipyridyl-4,4′-dicarboxylic acid)-ruthenium(II)) dye adsorbed over TiO2 nanocrystalline film as anode and conducting carbon cement coated over conducting glass as cathode to mainly impede the back-electron transfer processes. The prepared polymer electrolytes were well characterized before using them in solar cells. The functioning of the solar cells fabricated was monitored and the current–voltage characteristics were measured.