کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5460468 1516182 2017 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of effects of Te addition and oxygen contamination on the surface short range order structure of GeBiSe glass by XPS
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Study of effects of Te addition and oxygen contamination on the surface short range order structure of GeBiSe glass by XPS
چکیده انگلیسی
The short range order structure of Bi13Ge20Se67-xTex glasses (x = 0, 5, 10, 15, 20 at.%) is explored by using high-resolution X-ray photoelectron spectroscopy. Results show that the incorporated oxygen from surface containment of specimens and Te substitution for Se exert important impacts on the network structure of glasses. Oxygen breaks the GeGe homopolar bonds in the GeSeBi glass, leading to a significant reduction of the over-constrained GeGe(Se)3 ethane-like units. Te addtion promotes the formation of mixed BiSe(Te)3/2 nanolayers as crystal precursors, thus initiating crystallinzation in competition to a topological self-organization process. The present work will be helpful to deepen the understanding of ChG glasses for applications in fields of optoelectronics and photonics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 712, 25 July 2017, Pages 560-566
نویسندگان
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