کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1812683 | 1025621 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of the annealing temperature on the structure and optical properties of Cd1âx MnxTe thin films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ternary systems of Cd1âxMnxTe were synthesized by the direct fusion technique. Thin films of these compounds were prepared by an electron beam gun under a vacuum of 10â5Â Torr. Structural properties of these compounds in thin film forms were investigated by X-ray diffraction. It was found that these materials crystallize in the zinc-blende form. The optical constants (absorption coefficient and band gap) of the thin films were determined by measuring their reflectance and transmittance in the wavelength region from 500 to 2500Â nm. Analysis of the optical absorption spectra revealed the existence of one direct energy gap. The energy gap increases as the Mn concentration increases and with decreasing annealing temperatures. The electrical conductivity Ï was measured at room temperature and was found to decrease with increasing Mn content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 405, Issue 22, 15 November 2010, Pages 4664-4667
Journal: Physica B: Condensed Matter - Volume 405, Issue 22, 15 November 2010, Pages 4664-4667
نویسندگان
S.A. Gad, M. Boshta, A.M. Abo El-Soud, Y.A. El-Gendy,