Crystallization process analysis for Se_(0.95)In_(0.05) and Se_(0.90)In_(0.10) chalcogenide glasses using the contemporary isoconversional models

Kotkata M.F.; Mansour S.A.

首页> 外文期刊>Journal of thermal analysis and calorimetry >Crystallization process analysis for Se_(0.95)In_(0.05) and Se_(0.90)In_(0.10) chalcogenide glasses using the contemporary isoconversional models

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Crystallization process analysis for Se_(0.95)In_(0.05) and Se_(0.90)In_(0.10) chalcogenide glasses using the contemporary isoconversional models

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Carrying out crystallization studies for both Se_(0.95)In _(0.05) and Se_(0.90)In_(0.10) chalcogenide glasses under non-isothermal conditions at different heating rates, it was realized that a rate controlling process occurs where random nucleation of one- to two-dimensional growth is accompanied with the introduction of up to 10 at In into glassy Se matrix. The crystallization kinetics together with its dimensionality has been studied using the four currently used isoconversional models (Kissinger-Akahira-Sunose, Ozawa-Flynn-Wall, Tang, and Starink). The activation energy of crystallization (E c) has been determined using these indicated four models where a satisfactory concurrence is achieved. The value of E _c shows a decrease while increasing both the In-content as well as the extent of crystallization.

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《Journal of thermal analysis and calorimetry》 |2011年第3期|957-965|共9页
作者
Kotkata M.F.; Mansour S.A.;
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作者单位

Basic Engineering Science Department, Faculty of Engineering, Menofia University, Shebin El-Kom, Egypt;

Semiconductors Technology Lab., Faculty of Science, Ain Shams University, Cairo 11566, Egypt;

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正文语种英语
中图分类物理化学（理论化学）、化学物理学;
关键词
Chalcogenide glasses; Crystallization kinetics; Differential thermal analysis (DTA); III-VI semiconductors; Isoconversion methods; Non-crystalline semiconductors; Selenium-Indium (Se-In); Thermal analysis;

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Crystallization process analysis for Se_(0.95)In_(0.05) and Se_(0.90)In_(0.10) chalcogenide glasses using the contemporary isoconversional models

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