Electrodeposited nanocomposite n-p heterojunctions for solid-state dye-sensitized photovoltaics

A new electrodeposition method for making porous ZnO layers with highly ori ented and columnar morphology is reported here. A monolayer of dye is adsor bed onto the ZnO followed by electrodeposition of p-type CuSCN to create a complete inner-surface electrical contact, resulting in a bicontinuous-netw ork heterojunction (see Figure) to give a photovoltaic cell showing record conversion efficiency.