Electrodeposited Nanocomposite n-p Heterojunctions for Solid-State Dye-Sensitized Photovoltaics

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