Abstract
The influence of a gas atmosphere (O2 or air) on the transverse photovoltage (TPV) induced by X-ray irradiation in CdI2 specimens is studied. It is shown that the TPV measured at 295 K in a vacuum grows almost linearly with X-ray dose rate R. In a gas atmosphere, the TPV is of opposite sign and tends to saturation when R exceeds 200 R/min. After evacuation of the system, the TPV value increases, attains a maximum, and then abruptly drops (changing sign) to the initial “vacuum” value. Based on the results of this study and published data, it is shown that such behavior of the TPV in CdI2 is related to X-ray-stimulated chemisorption proceeding by the acceptor mechanism.
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 75, No. 2, 2005, pp. 121–123.
Original Russian Text Copyright © 2005 by Matviishyn, S. Novosad, I. Novosad.
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Matviishyn, M., Novosad, S.S. & Novosad, I.S. Influence of adsorption on the transverse photovoltage arising in cadmium diiodide crystals under X-ray irradiation. Tech. Phys. 50, 259–261 (2005). https://doi.org/10.1134/1.1866444
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DOI: https://doi.org/10.1134/1.1866444