کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1482271 | 991561 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Short-wavelength upconversion luminescence of Yb3+/Tm3+ co-doped glass ceramic containing SrF2 nanocrystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The preparation process and upconversion luminescence properties of the Yb3+ and Tm3+ co-doped glass ceramic containing SrF2 nanocrystals were investigated. In the glass ceramic, the SrF2 nanocrystals were embedded uniformly in the glass matrix. The Yb3+ and Tm3+ ions could be enriched into the precipitated SrF2 nanocrystalline phase, which provide much lower phonon energy than the glass matrix. The glass ceramic exhibited much stronger upconversion luminescence from ultraviolet to visible than the precursor glass. The upconversion luminescence mechanisms were mainly attributed to Yb3+–Yb3+ cooperative upconversion, Yb3+–Tm3+ energy transfer and Tm3+–Tm3+ cross relaxation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 357, Issue 1, 1 January 2011, Pages 83–87
Journal: Journal of Non-Crystalline Solids - Volume 357, Issue 1, 1 January 2011, Pages 83–87
نویسندگان
Xvsheng Qiao, Xianping Fan, Zheng Xue, Xuanhe Xu,