کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9829591 | 1524494 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Composition-temperature-partial pressures data for Cd0.8Zn0.2Te by optical absorption measurements
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Known weights of Cd, Zn and Te were reacted in silica optical cells of known volume, and the partial pressures of Te2 and Cd between 485 and 1160 °C were determined by measuring the optical density of the vapor in the ultra-violet to visible range. The composition of the condensed phase or phases was calculated from the original weights and the amount of material in the vapor phase. The corresponding composition-temperature-partial pressures, xTe-T-PTe2, data, including five Te-rich solidus points, were established. The solubility range for the Te-rich Cd0.8Zn0.2Te(s) is similar to that of CdTe(s) with xTe=0.50005 at 809 °C and an estimated maximum solubility of xTe=0.50012 at about 1000 °C. The partial pressures of Cd and Te2 measured over the Cd0.8Zn0.2Te melt at 1140 °C were about 1.55 and 0.02 atm, respectively, and the corresponding Zn partial pressure was estimated to be 0.05 atm. It was recommended that a Cd reservoir maintained at 800-820 °C should be used during directional solidification of Cd0.8Zn0.2Te to prevent the preferential loss of Cd to the vapor phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 281, Issues 2â4, 1 August 2005, Pages 577-586
Journal: Journal of Crystal Growth - Volume 281, Issues 2â4, 1 August 2005, Pages 577-586
نویسندگان
Ching-Hua Su,