Spray‐Pyrolyzed Thin Film CdSe Photoelectrochemical Cells

Abstract

Spray‐pyrolyzed thin films have been prepared and used as anodes in photoelectrochemical cells. The efficiency of these cells can be enhanced by annealing the thin film electrodes in air and subsequently photoactivating in slightly acidic salt solutions. The overall efficiency for optical to electrochemical energy conversion is 17.5% at 640 nm and 6.4% under simulated sunlight.