A solid-state dye-sensitized photovoltaic cell with a poly(N-vinyl-carbazole) hole transporter mediated by an alkali iodide

Abstract

A polymer-based dye-sensitized solar cell in dry solid state was constructed using poly(N-vinyl-carbazole)(PVK) as a hole-transporting layer; the cell attained the highest power efficiencies of 2.4% and 2.0% at 1/4 sun and 1 sun (AM1.5), respectively, by incorporation of a solid intermediate layer (LiI, KI) at the dye-PVK interface.