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Fizika i Tekhnika Poluprovodnikov, 2016, Volume 50, Issue 1, Pages 112–119
(Mi phts6571)
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This article is cited in 3 scientific papers (total in 3 papers)
Semiconductor physics
Mechanisms of the degradation of Schottky-barrier photodiodes based on ZnS single crystals
N. E. Korsunskaya, E. P. Shulga, T. R. Stara, P. M. Litvin, V. A. Bondarenko Institute of Semiconductor Physics NAS, Kiev
Abstract:
The effect of ultraviolet (UV) illumination on the electrical and spectral characteristics of Schottky-barrier photodiodes based on ZnS single crystals is studied. It is found that irradiation deteriorates their photosensitivity and changes the current–voltage and capacitance–voltage characteristics and the surface profile of the blocking electrode. It is shown that the main reason for a decrease in the photosensitivity of the diodes is the photoinduced drift of mobile donors in the electric field of the barrier. This drift depends on the crystallographic orientation of the surface being irradiated. Another photoinduced process observed in the diodes is photolysis of the ZnS crystal. This process mainly determines the change in the electrical characteristics of the diodes and in the surface profile of the electrode at an insignificant change in the photosensitivity.
Received: 31.03.2015 Accepted: 09.04.2015
Citation:
N. E. Korsunskaya, E. P. Shulga, T. R. Stara, P. M. Litvin, V. A. Bondarenko, “Mechanisms of the degradation of Schottky-barrier photodiodes based on ZnS single crystals”, Fizika i Tekhnika Poluprovodnikov, 50:1 (2016), 112–119; Semiconductors, 50:1 (2016), 112–119
Linking options:
https://www.mathnet.ru/eng/phts6571 https://www.mathnet.ru/eng/phts/v50/i1/p112
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