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
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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
Xu, Xuanhe
中科院分区:
材料科学2区
文献类型:
--
作者:
Qiao, Xvsheng;Fan, Xianping;Xue, Zheng;Xu, Xuanhe

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研究了Yb3+和Tm3+共掺srf2纳米晶玻璃陶瓷的制备工艺和上转换发光性能。在玻璃陶瓷中,srf2纳米晶体均匀地嵌套在玻璃基体中。Yb3+和Tm3+离子可以富集到沉淀的srf2纳米晶相中,提供比玻璃基体低得多的声子能量。玻璃陶瓷表现出比前驱体玻璃更强的从紫外到可见光的上转换发光。上转换发光机制主要为Yb3+ -Yb3 +协同上转换、Yb3+ -Tm3 +能量转移和Tm3+ -Tm3 +交叉弛豫。
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.
DOI: 10.1103/physrevb.69.205203
发表时间: 2004-05-01
期刊: PHYSICAL REVIEW B
影响因子: 3.7
作者:
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