Upconversion luminescence of Ho3+/Yb3+ codoped oxyfluoride silicate glass ceramics

被引：3
作者：
School of Optical-Electrical and Computer Engineer, University of Shanghai for Science and Technology, Shanghai 200093, China [1 ]
不详 [2 ]
机构：
[1] School of Optical-Electrical and Computer Engineer, University of Shanghai for Science and Technology
[2] College of Optical and Electronic Technology, China Jiliang University
来源：
Zhongguo Jiguang | 2009年 / 5卷 / 1184-1189期
关键词：
Ho[!sup]3+[!/sup; Materials; Oxyfluoride glass silicate ceramics; Upconversion luminescence; X-ray diffraction;
D O I：
10.3788/CJL20093605.1184
中图分类号：
学科分类号：
摘要：
Ho3+/Yb3+ codoped oxyfluoride silicate glass has been prepared. According to differetial thermal analysis (DTA) studies, the as-made glass was crystallized. X-ray diffraction (XRD) spectrum, transmission electron microscope (TEM) spectrum, absorption spectrum and up-conversion luminescence of glass ceramics were measured. The average crystallite size of CaF2 glass ceramics was calculated by Scherrer formula and compared with that of TEM. The crystal growth characteristics of nanometer CaF2 as well as effects on the diameter of CaF2 were studied by the kinetics theory of crystal growth. The dynamics equation of crystal growth of nanometer CaF2 was obtained. The upconversion fluorescence emission spectra of Ho3+/Yb3+ in oxyfluoride silicate glass ceramics were investigated and the upconversion luminescence mechanism of oxyfluoride silicate glass ceramics was analyzed. The results indicate that the oxyfluoride silicate glass ceramics is a potential luminescence material for upconversion green lasers.
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页码：1184 / 1189
页数：5
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