Analysis of the Heat Characteristics of the p-Type Ge Single Crystals

Abstract

Using the pyroelectric method (TSWM), it was shown that the heat-conduction and thermal diffusivity coefficients of p-type germanium single crystals depend on the doping concentration of Ga (1 × 10¹⁴, 3 × 10¹⁴, 4.5 × 10¹⁴, 9 × 10¹⁴, 3.5 × 10¹⁵ cm^–3) in the [111], [110] and [100] crystallographic orientation. It is found that the error in determining the thermal diffusivity is not more than 9%, the thermal conductivity‒10%. The measurements were carried out in the temperature range 20–80°С.