Determination of certain trapping parameters in mercury sulphide (α-HgS) by Thermally Stimulated Conductivity

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Abstract
In this article we present the results of our measurements on Thermally Stimulated Conductivity on mercury sulphide. These results enable us to put forward four T.S.C. peaks. We study two of them in detail. The first one, which appears at a temperature of 165 K, is explained as following a slow retrapping monomolecular process. From the different methods which can be applied to this case we are able to determine the level depth (E t = 300 meV), the density of traps (Nt = 2.55 x 1012 cm-3) and the capture cross section (s t = 1.8 × 10-19 cm2) . The second appears at 104 K. Existing theories do not enable us to obtain all its parameters. We can only deduce the level depth (Et = 120 meV)