Luminescence of Dy3+/Tb3+ doped scintillating glasses with high (Gd(1-x)Lux)2O3 concentration

被引：0
|
作者：
Yang, Bin [1 ]
Wang, Qian [1 ]
Zhang, Yue-Pin [1 ]
Xia, Hai-Ping [1 ]
机构：
[1] Laboratory of Photo-Electronic Material, Ningbo University, Ningbo
来源：
Gongneng Cailiao/Journal of Functional Materials | 2015年 / 46卷 / 06期
关键词：
Energy transfer; I-H theory model; Scintillating glasses; Spectral analysis;
D O I：
10.3969/j.issn.1001-9731.2015.06.019
中图分类号：
学科分类号：
摘要：
The Dy3+/Tb3+ doped oxyfluoride glasses with high Gd((1-x)Lux)2O3 concentration were prepared by high temperature melting method. The absorption spectra, excitation spectra, emission spectra under UV excitations and decay curves of Dy3+ ions were measured and analyzed. There are some impact for the luminescence of Tb3+ ions that Dy3+ ions concentration increased, and the energy transfer mechanisms of the Dy3+/Tb3+ doped scintillating glasses are analyzed by the I-H theory model. The result show that the Dy3+ ions can sensitize the luminescence of Tb3+ ions. The Dy3+ ions have positive impact for luminescence of Tb3+ ions, however when the concentration of Dy3+ ions more than 2 mol%, the intensity of emission of Tb3+ ions decrease with the concentration of Dy3+ ions increased. The energy transfer efficiency of between of Dy3+ and Tb3+ ions were calculated. The results indicate that the energy transfer mechanism is non-radiative energy transfer, and energy transfer efficiency increases with the concentration of Tb3+ ions. ©, 2015, Journal of Functional Materials. All right reserved.
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页码：06091 / 06094and06101
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