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

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

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...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1998-04, Vol.280 (5362), p.425-427
Hauptverfasser: Khaselev, Oscar, Turner, John A.
Format: Artikel
Sprache:eng
Schlagworte:
Alternative fuels. Production and utilization
Applied sciences
Bubbles
Electric current
Electric potential
Electrochemical cells
Electrodes
Electrolysis
Electrolysis (Chemistry)
Electrolytes
Energy
Exact sciences and technology
Fuels
Hydrogen
Innovations
Light
Photovoltaic cells
Semiconductors
Thermodynamics
Water
Water splitting
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Beschreibung
Zusammenfassung: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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.280.5362.425