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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Bibliographic Details
Published inScience (American Association for the Advancement of Science) Vol. 280; no. 5362; pp. 425 - 427
Main Authors Khaselev, Oscar, Turner, John A.
Format Journal Article
LanguageEnglish
Published Washington, DC American Society for the Advancement of Science 17.04.1998
American Association for the Advancement of Science
The American Association for the Advancement of Science
Subjects
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
Water
Electrolysis
Hydrogen
Production
Photoelectrochemical cell
Yield
Photovoltaic cell
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Summary: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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ISSN:0036-8075
1095-9203
DOI:10.1126/science.280.5362.425