Abstract

The equilibrium composition and the thermodynamic characteristics of the Zn–Se and Zn–S semiconductor systems are studied. The temperature regions of the components of the condensed and gas phases that form when the ZnSe and ZnS compounds are heated in the temperature range 300–3000 K in an Ar atmosphere are revealed for a wide pressure range from 1 to 10⁹ Pa. Equations are derived to describe the pressure dependence of the evaporation temperature. The effect of iron and chromium impurities on the equilibrium characteristics of the Zn–Se and Zn–S systems is studied. The enthalpy and the entropy of both systems are shown to increase linearly with the chromium and iron concentration. The results obtained are in good agreement with the experimental data on the dependence of the absorption coefficient and the effective generation of zinc selenide and sulfide on the impurity concentration.

中文翻译：

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Zn–S和Zn–Se系统的热力学模拟

摘要

研究了Zn-Se和Zn-S半导体系统的平衡组成和热力学特性。在1至10 ⁹的宽压力范围内，当ZnSe和ZnS化合物在300-3000 K的温度范围内加热时，形成的冷凝相和气相成分的温度区域显示出来。Pa。导出方程式来描述蒸发温度的压力依赖性。研究了铁和铬杂质对Zn-Se和Zn-S系统平衡特性的影响。这两个系统的焓和熵均显示为随铬和铁浓度线性增加。所获得的结果与吸收系数以及硒化锌和硫化锌的有效生成对杂质浓度的依赖关系的实验数据吻合良好。