DOI: 10.1126/science.280.5362.425 ISSN:

A Monolithic Photovoltaic-Photoelectrochemical Device for Hydrogen Production via Water Splitting

Oscar Khaselev, John A. Turner
  • Multidisciplinary

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.

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