Kinetic analysis of photoelectrochemical hydrogen evolution over p-type silicon in acidic aqueous solutions of electrolytes
Autor: | S. D. Babenko, A. A. Balakai, A. G. Lavrushko, Yu. L. Moskvin, S. N. Shamaev |
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Rok vydání: | 2000 |
Předmět: | |
Zdroj: | Russian Chemical Bulletin. 49:1707-1711 |
ISSN: | 1573-9171 1066-5285 |
DOI: | 10.1007/bf02496338 |
Popis: | The kinetics of photoelectrochemical hydrogen evolution at p-Si single crystals in acidic aqueous solutions of electrolytes under pulse photoexcitation was studied. Despite a low stability of the silicon surface under the experimental conditions, a distinct interrelation between the characteristic time of interfacial charge transfer and stationary current was found. The determination of the characteristic transfer time does not need the detailed elaboration of generation-recombination processes in the semiconductor. The steady-state current density was shown to be determined both for the dark current and photocurrent by the surface charge density. |
Databáze: | OpenAIRE |
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