Overall water splitting by photoelectrochemical cells consisting of (ZnSe)0.85(CuIn0.7Ga0.3Se2)0.15 photocathodes and BiVO4 photoanodes

The design of photoelectrochemical (PEC) cell structures that mitigate challenges related to mass transfer is the key to achieving efficient hydrogen production. A PEC cell based on an integrated photoelectrode incorporating (ZnSe)(0.85)(CuIn0.7Ga0.3Se2)(0.15) strips and BiVO4 strips exhibited 1.0% solar-to-hydrogen energy conversion efficiency even without stirring the electrolyte solution.