کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1497377 993003 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modification of selenium–tellurium amorphous composition with iron using the mechanical alloying method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Modification of selenium–tellurium amorphous composition with iron using the mechanical alloying method
چکیده انگلیسی

The mechanical alloying method was used to add Fe to the amorphous Se8Te2 alloy. The effect of mechanically alloying Fe with Se8Te2 on the optical properties of thin films of the resulting alloys was studied in the UV–VIS spectral region. Different models for the determination of the optical energy gap were reviewed and used to analyze the obtained data. The optical energy gap was found to increase with the Fe content. Values of the optical energy gap of the alloys under investigation were determined using three different methods and the relation between different measures of the optical gap is explored. The effect of annealing at temperatures below the glass transition temperatures was also investigated. The optical energy gap found to decreases with the annealing time revealing the increase of randomness as a result of thermal annealing.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 29, Issue 5, January 2007, Pages 562–565
نویسندگان
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