کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5441242 | 1510382 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of iodine (I2) on structural, thermal and optical properties of Ge-Sb-S chalcohalide host glasses and ones doped with Dy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
A serial (100 â x)Ge25Sb10S65-xI (x = 0, 5, 10, 15, 20, 25 and 30 wt%) chalcohalide glasses and ones doped with 0.1 wt% Dy3 + rare-earth ions were synthesized and their structural, thermal and optical properties were systematically studied. It indicates that addition of I2 into Ge25Sb10S65 glass significantly decreases the connectivity of glass network and average bond energy, and modifies the associated properties. The glass transition temperature and refractive index decrease monotonically, and the density increases almost linearly with the increasing of iodine content in glass. The thermal stability is improved, which has a maximum of ÎTmax = 174 °C. While the optical bandgap has a peak value at x = 10 wt%. The absorption spectra and mid-infrared fluorescence spectra of Dy3 + rare-earth ions doped glasses were investigated together with the Judd-Ofelt analysis. GeS2 nano-crystals were found in the sample with x â¥Â 15 wt%, which is supposed to induce enhancements of mid-infrared fluorescence at 2.95 and 4.32 μm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 464, 15 May 2017, Pages 81-88
Journal: Journal of Non-Crystalline Solids - Volume 464, 15 May 2017, Pages 81-88
نویسندگان
Quan Guo, Yantao Xu, Haitao Guo, Xusheng Xiao, Changgui Lin, Xiaoxia Cui, Pengfei Wang, Fei Gao, Min Lu, Bo Peng,