کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1483612 | 1510539 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemical characteristics of Dy–S bonds in Ge–As–S glass
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
From Dy L3-edge extended X-ray absorption fine structure spectroscopic analysis of Dy-doped Ge–As–S glass, we verified that both the coordination number and Dy–S distance are decreased in this representative chalcogenide glass compared to those in the Dy2S3 crystalline counterpart. The strong covalent nature inherent in chemical bonds between the constituent atoms of Ge–As–S glass would be responsible for the enhanced covalency of the Dy–S bonds, which would then be sensitively related to the optical characteristics of the 4f ↔ 4f transitions of Dy3+ as well as the low rare-earth solubility exhibited by the Ge–As–S glass.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 16–17, 1 June 2007, Pages 1665–1669
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 16–17, 1 June 2007, Pages 1665–1669
نویسندگان
Yong Gyu Choi, Jay Hyok Song, Yong Beom Shin, Jong Heo,