Energy transfer and up-conversion luminescence in Er3+/Yb3+ co-doped transparent glass ceramic containing YF3 nano-crystals

被引：75
作者：
Weng, Fangyi [1 ]
Chen, Daqin [1 ]
Wang, Yuansheng [1 ]
Yu, Yulong [1 ]
Huang, Ping [1 ]
Lin, Hang [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Grad Sch, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2009年 / 35卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Nanocomposites; Spectroscopy; Optical properties; Glass ceramic; ER3+ IONS; FLUORESCENCE; BEHAVIOR; YB3+;
D O I：
10.1016/j.ceramint.2009.02.026
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Transparent glass ceramics containing YF3 nano-crystals were fabricated by heat treatment of the SiO2-Al2O3-NaF-YF3-LnF(3) (Ln = Er, Yb) glasses. X-ray diffraction and transmission electron microscopy analyses evidenced the homogeneous distribution of spherical YF3 nano-crystals sized 25-30 nm among the glassy matrix. Energy dispersive X-ray spectroscopy measurement, combined with the Stark splitting of the absorption and emission bands, verified the incorporation of Er3+ and Yb3+ ions into YF3 nano-crystals. The infrared to visible up-conversion emission of Er3+ intensified with the increasing of Yb3+ concentration, ascribing to the increase of the efficiency of non-radiative energy transfer from Yb3+ to Er3+ which exceeded 45% for the 0.5Er(3+)/1.0Yb(3+) co-doped sample. The up-conversion luminescence at 545 and 660 nm were affirmed coming from two-photon excitation process.
引用
收藏
页码：2619 / 2623
页数：5
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