Hydrogen evolution at p-InP photocathodes in alkaline electrolyte

The photoelectrochemical (PEC) performance of p-InP single crystal, surface modified by the sequential deposition of cobalt and platinum, has been investigated in 6N KOH. Efficiencies of 14.2% were realized from the photocathode for the electrical power savings obtained compared to a platinum cathod...

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Veröffentlicht in:	J. Electrochem. Soc.; (United States) 1984-06, Vol.131 (6), p.1462-1464
Hauptverfasser:	ANG, P. G. P, SAMMELLS, A. F
Format:	Artikel
Sprache:	eng
Schlagworte:	08 HYDROGEN 080106 - Hydrogen- Production- Biosynthesis & Photochemical Processes 140505 - Solar Energy Conversion- Photochemical, Photobiological, & Thermochemical Conversion- (1980-) Applied sciences CATHODES CHEMICAL REACTIONS COBALT CRYSTALS CURRENT DENSITY DEPOSITION ELECTROCHEMICAL CELLS ELECTRODES ELECTROLYTES ELEMENTS Energy ENERGY CONSERVATION Exact sciences and technology HYDROGEN PRODUCTION INDIUM COMPOUNDS INDIUM PHOSPHIDES MATERIALS METALS Natural energy P-TYPE CONDUCTORS PHOSPHIDES PHOSPHORUS COMPOUNDS PHOTOCATHODES PHOTOCHEMICAL REACTIONS PHOTOELECTROCHEMICAL CELLS PLATINUM PLATINUM METALS PNICTIDES SEMICONDUCTOR MATERIALS SOLAR ENERGY SOLAR EQUIPMENT TRANSITION ELEMENTS
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Zusammenfassung:	The photoelectrochemical (PEC) performance of p-InP single crystal, surface modified by the sequential deposition of cobalt and platinum, has been investigated in 6N KOH. Efficiencies of 14.2% were realized from the photocathode for the electrical power savings obtained compared to a platinum cathode, operating at the same current density. A variety of definitions of efficiency for the conversion of light to hydrogen are discussed.
ISSN:	0013-4651 1945-7111
DOI:	10.1149/1.2115874