Short-wavelength upconversion luminescence of Yb3+/Tm3+ co-doped glass ceramic containing SrF2 nanocrystals
Short-wavelength upconversion luminescence of Yb3+/Tm3+ co-doped glass ceramic containing SrF2 nanocrystals
复制标题
SrF2纳米晶Yb3/Tm3共掺杂玻璃陶瓷的短波长上转换发光
DOI:
10.1016/j.jnoncrysol.2010.09.008
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发表时间:
2011
影响因子:
3.5
通讯作者:
Xu, Xuanhe
中科院分区:
文献类型:
--
作者:
Qiao, Xvsheng;Fan, Xianping;Xue, Zheng;Xu, Xuanhe
The preparation process and upconversion luminescence properties of the Yb3+and Tm3+co-doped glass ceramic containing SrF2nanocrystals were investigated. In the glass ceramic, the SrF2nanocrystals were embedded uniformly in the glass matrix. The Yb3+and Tm3+ions could be enriched into the precipitated SrF2nanocrystalline 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.
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