N.I. Ilinykh, L.E. Kovalev.
ABSTRACT
The investigation of the equilibrium composition and thermodynamic characteristics of Zn-Se and Zn-s semiconductor systems was carried out. There are obtained the temperature regions of existence of condensed and gas phase components formed when ZnSe and ZnS compounds are heated in the temperature range of 300–3000 K in the argon atmosphere in a wide pressure range: from 1 to 109 Pa. Equations describing the dependence of the evaporation temperature on the pressure are obtained. The influence of iron and chromium impurities on the equilibrium characteristics of Zn-Se and Zn-S systems was studied. It is shown that with increasing concentrations of chromium and iron, the enthalpy and entropy of both systems increase linearly. The results obtained are in good agreement with experimental data on the dependence of the absorption coefficient and effective generation of zinc selenide and sulfide on the impurity concentration.
KEY WORDS:
zinc selenide, zinc sulfide, thermodynamic modeling
DOI: 10.31857/S0235010620060067