کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10629469 | 991065 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dependence of spectroscopic and thermal properties on concentration and temperature for Yb:Y2O3 transparent ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
High transparency ytterbium doping yttria (Yb:Y2O3) ceramics were fabricated by vacuum sintering. The influence of temperature and doping concentration on optical and thermal properties of Yb:Y2O3 ceramics were evaluated. The increased Yb doping concentration causes the red-shift of absorption edge. The intensities of absorption peaks increase linearly with Yb3+ ion concentration, and the absorption cross-section at â¼978Â nm is calculated to be 1.15Â ÃÂ 10â20Â cm2. When Yb3+ doping content is 5.0Â at.%, the strongest peak centers at the wavelength of 1030Â nm with the full width at half maximum (FWHM) of 17Â nm, and stimulated emission cross-section is measured to be 1.58Â ÃÂ 10â20Â cm2. Both absorption coefficient and fluorescence lifetime increase with increasing Yb3+ concentration. The optimum doping concentration of Yb3+ ion in Y2O3 transparent ceramic is in the range of 5.0-7.0Â at.%. For 5.0Â at.% Yb:Y2O3 transparent ceramic, as temperature increases from 10Â K to room temperature (RT), the fluorescence intensity decreases and the peaks are broaden.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 35, Issue 9, September 2015, Pages 2547-2554
Journal: Journal of the European Ceramic Society - Volume 35, Issue 9, September 2015, Pages 2547-2554
نویسندگان
Lei Zhang, Wei Pan, Jing Feng,