Selenium solubility in solid zinc selenide
- Autores: Tran K.C.1, Mozhevitina E.N.1, Potapova K.A.1, Levonovich B.N.1, Avetissov I.C.1
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Afiliações:
- Mendeleev University of Chemical Technology
- Edição: Volume 52, Nº 7 (2016)
- Páginas: 643-649
- Seção: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/157745
- DOI: https://doi.org/10.1134/S0020168516070037
- ID: 157745
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Resumo
Selenium solubility in solid s-ZnSe (F43m) under mono- and divariant equilibrium conditions has been determined by a direct physicochemical method in the temperature range 850–1173 K. The maximum concentration of excess selenium is 3.76 × 10–4 mol of excess Se per mole of ZnSe at 1173 K. The homogeneity range of the s-ZnSe phase has been shown to be characterized by retrograde solubility at its Se-rich phase boundary. A model has been proposed for defect formation in nonstoichiometric s-ZnSe at temperatures in the range 963–1173 K and pSe2 pressures in the range 1.05 × 10]4 to 5.01 × 105 Pa according to which the dissolution of excess Se is accompanied by the formation of electrically neutral associated vacancy defects in the zinc sublattice.
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Sobre autores
Khanh Tran
Mendeleev University of Chemical Technology
Email: aich@rctu.ru
Rússia, Miusskaya pl. 9, Moscow, 125047
E. Mozhevitina
Mendeleev University of Chemical Technology
Email: aich@rctu.ru
Rússia, Miusskaya pl. 9, Moscow, 125047
K. Potapova
Mendeleev University of Chemical Technology
Email: aich@rctu.ru
Rússia, Miusskaya pl. 9, Moscow, 125047
B. Levonovich
Mendeleev University of Chemical Technology
Email: aich@rctu.ru
Rússia, Miusskaya pl. 9, Moscow, 125047
I. Avetissov
Mendeleev University of Chemical Technology
Autor responsável pela correspondência
Email: aich@rctu.ru
Rússia, Miusskaya pl. 9, Moscow, 125047
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