A dye-sensitized nano-porous solid-state photovoltaic cell

Abstract

A photovoltaic cell was fabricated by sandwiching a monolayer of the pigment cyanidin adsorbed on nano-porous n-TiO₂ film (deposited on conducting tin oxide glass) within a transparent polycrystalline film of p-CuI, filling the intercrystallite pores of the porous n-TiO₂ film. Photoexcited dye is found to inject electrons into n-TiO₂ and holes into p-Cul, generating photocurrents and photovoltages that are impressively high for a dye-sensitized solid-state photovoltaic cell.