Semiconductor Physics, Quantum Electronics & Optoelectronics. 2003. V. 6, N 1. P. 23-27.

PACS: 64.90.+b

Polyassociative thermodynamical model of A2B6 semiconductor melt and P-T-X equilibria in Cd-Hg-Te system: 2. Phase equilibria in initial two-component systems. Cd-Te system
P.P. Moskvin1, L.V. Rashkovets'kyi2, S.V. Kavertsev2, G.I. Zhovnir3, A.O. Ruden'kyi1

1 Zhitomir Engineer-and-Technology Institute, 103 Chernyakhovs'kogo vul., 10005 Zhitomir, Ukraine
E-mail: moskvin@usr.ziet.zhitomir.ua
2 Institute of Semiconductor Physics, NAS of Ukraine, 45 prospect Nauky, 03028 Kyiv, Ukraine
3 Technopark "INTOS", Ltd., 41 prospect Nauky, 03028 Kyiv, Ukraine

Abstract. Phase equilibria in Cd-Hg-Te system are analyzed in the framework of the polyassociative solution model. Checking the mentioned model applicability to description of phase equilibria and search of system thermodynamical functions were realized by sequential processing the data upon phase equilibria in initial binary system using computer software. After Hg-Te system, as the next material we chose Cd-Te system. It was shown that CdTe, Cd2Te3, CdTe2 and Te2 are predominant complexes of the liquid phase in the considered system. Determined are parameters of complex creation in a liquid phase. A satisfying accordance between estimation and experimental data on P-T-X equilibria in the initial binary system Cd-Te was attained using this approach.

Keywords: phase equilibrium, polyassociative model.
Paper received 22.10.02; accepted for publication 18.03.03.

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