title: A monolithic photovoltaic-photoelectrochemical device for hydrogen production via water splitting
abstract: Direct water electrolysis was achieved with a novel, integrated, monolithic photoelectrochemical-photovoltaic design. This photoelectrochemical cell, which is voltage biased with an integrated photovoltaic device, splits water directly upon illumination; light is the only energy input. The hydrogen production efficiency of this system, based on the short-circuit current and the lower heating value of hydrogen, is 12.4 percent.
authors.affiliation: National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401-3393, USA.
authors.initials: O
authors.lastname: Khaselev
authors.initials: JA
authors.lastname: Turner