کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1483532 1510505 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrical and optical properties of Sn10Sb20−xBixSe70 (0 ⩽ x ⩽ 8) glassy films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Electrical and optical properties of Sn10Sb20−xBixSe70 (0 ⩽ x ⩽ 8) glassy films
چکیده انگلیسی

Chalcogenide glasses are interesting materials due to their infrared transmitting properties and photo-induced effects exhibited by them. Thin films of the glasses Sn10Sb20−xBixSe70 (0 ⩽ x ⩽ 8) prepared by melt quenching technique were evaporated in a vacuum better than 10−5 mbar. Optical transmission spectra of all the deposited films were obtained in a range 400–2500 nm. The optical band gap and the absorption coefficient were calculated from the transmission data and refractive index was calculated using the swanepoel method. The optical band gap initially increases with increase in Bi content (for x = 2) and then decreases sharply for higher Bi concentrations. The refractive index as well as absorption coefficient decrease with increase in wavelength. The dark activation energy initially increases with increase in Bi content and then decreases with further addition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 355, Issues 48–49, 15 November 2009, Pages 2345–2348
نویسندگان
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