Photoelectrochemical processes at electrolyte–multinary layered semiconductors interfaces

The electric and photoelectric properties of the electrolyte–semiconductor interface in the chains formed by metal auxiliary electrode–electrolyte–multinary layered semiconductors have been investigated. The dependencies of flatband potential ϕ fb and contact potential ϕ c at the electrolyte–semicon...

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Bibliographic Details
Published in:Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 2001-03, Vol.139 (2), p.181-185
Main Authors: Simashkevich, A., Sprinchean, A., Tsiulyanu, I.
Format: Article
Language:English
Subjects:
Electrochemical cells
Multinary semiconductors
Photoelectric properties
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Summary:The electric and photoelectric properties of the electrolyte–semiconductor interface in the chains formed by metal auxiliary electrode–electrolyte–multinary layered semiconductors have been investigated. The dependencies of flatband potential ϕ fb and contact potential ϕ c at the electrolyte–semiconductor interface on the concentration of S 2−/S 2 2− ions and the value of pH of the electrolyte were studied. The values of the photopotential up to 0.6 V and the short circuit current up to 1 mA/cm 2 have been obtained. It was shown that the photoelectrode corrosion is practically absent. An energetic diagram for the investigated system is proposed.
ISSN:1010-6030
1873-2666
DOI:10.1016/S1010-6030(00)00409-3