Abstract
We have studied the photoconductivity of CdS:Cu single crystals irradiated by fast electrons. When the density of fast recombination centers (s-centers) due to the electron irradiation is high, one observes photostimulation of photoconductivity (PSP). PSP is due to the photoexcitation of holes from the s-centers into the valence band and their subsequent decay at slow recombination centers. The energy location of the s-centers can be found from the peak in the PSP spectrum; we find that Es=Ev+(1.67 ± 0.02) eV.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 50–53, January, 1989.
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Davidyuk, G.E., Bogdanyuk, N.S. & Bozhko, V.V. Photostimulation of photoconductivity in electron-irradiated CdS:Cu single crystals. Soviet Physics Journal 32, 41–44 (1989). https://doi.org/10.1007/BF00896732
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DOI: https://doi.org/10.1007/BF00896732