Photoelectrochemical systems with energy storage

Abstract

Photoelectrochemical cells having the capability of energy storage are covered. Photoanodes used for these cells were selected from MoSe₂, GaAs and CdSe. Redox electrolyte species present at the semiconductor–electrolyte interface included Br^–/Br₂(MoSe₂), S^2–/S^2–_n(CdSe) and Se^2–/Se^2–₂(GaAs). Electroactive materials at the counter-electrode of the storage systems were I^–I₂, Se^2–/Se^2–₂ and Cd.

The performance of these photoelectrochemical storage cells for charge upon photoanode illumination and their subsequent electrochemical discharge is discussed.