Temperature Dependence of Electrical Conductivity and Thermoelectric Power of In2Te3 Single Crystals

Abstract

In this paper we present the study of electrical conductivity, Hall coefficient and thermoelectric power (TEP) of In₂Te₃single crystals. The study covered a wide range of temperature extending from 150–470 K. Measurements of In₂Te₃ indicate p-type conductivity with a hole concentration of 3.16 x 10¹⁰ cm^–3 at room temperature. The energy gap width is found to be 1.01 eV. Conductivity and Hall mobility at room temperature are 0.623 x 10^–6 Ω^–1 cm^–1 and 1380cm²/V. sec. respectively. The mean free time is τ_n = 1.106 x 10^–16 sec. and τ_p = 1.07 x 10^–15 sec. for electrons and holes respectively.