Preparation and luminescence property of Ho, Tm:YbAG nano-powder

被引：0
作者：
Zhu, Zhongli [1 ]
Lin, Hai [1 ]
机构：
[1] Changchun University of Science and Technology, Changchun
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2015年 / 43卷 / 01期
关键词：
Citrate gel method; Holmium and thulium doped ytterbium aluminum garnet; Luminous property; Phosphor; Upconversion fluorescence;
D O I：
10.14062/j.issn.0454-5648.2015.01.14
中图分类号：
学科分类号：
摘要：
Ho, Tm:Yb3Al5O12 (Ho, Tm:YbAG) nano-powder was synthesized by a gel method with citric acid as a complex agent. The optimum preparation conditions for the sample obtained are the mole ratio of citric acid to metal nitrate total number of atoms of 1.7:1, calcination temperature of 950 ℃ and calcinations time of 2 h. The average particle size of powder prepared is 70 nm. The fluorescence spectrum of the sample at room temperature was examined. The results show that an intense emission band is located at 1 958 nm, which is corresponding to the 5I7→5I8 level transition of Ho3+. The upconversion fluorescence spectrum of sample indicates that the sample has upconversion red light and near infrared light and a better luminous intensity. In addition, the light transition mechanism was also discussed. ©, 2015, Chinese Ceramic Society. All right reserved.
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页码：87 / 92
页数：5
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