Synthesis and Luminescence Properties of Red Phosphor Na8.33La1.67(SiO4)6O2: Eu3+

被引：0
|
作者：
Jin Y. [1 ]
Chen Y.-H. [1 ]
Liu H.-W. [1 ]
Yao J. [1 ]
机构：
[1] School of Science, Chongqing University of Technology, Chongqing
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2019年 / 40卷 / 02期
关键词：
Energy migration; Na[!sub]8.33[!/sub]La[!sub]1.67[!/sub](SiO[!sub]4[!/sub])[!sub]6[!/sub]O[!sub]2[!/sub]: Eu[!sup]3+[!/sup; Red phosphor; Solid state method; White LED;
D O I：
10.3788/fgxb20194002.0159
中图分类号：
学科分类号：
摘要：
Europium(Ⅲ)-doped Na8.33La1.67(SiO4)6O2 have been synthesized by solid stated method. The crystal structure has been detected by X-ray diffractometer and the photoluminescence properties have been obtained on Hitachi F4600. Under UV excitation, the emission of Na8.33La1.67-(SiO4)6O2: Eu3+cover some sharp lines corresponding to the transitions of 5D0-7Fj(j=0, 1, 2, 3, 4), with the highest intensity at 615 nm ascribed to the transition of 5D0-7F2. Moreover, the emission intensity changes with the concentration of Eu3+. As the concentration is 15%, the optimal emission is obtained, which is concentration quenching. The phenomenon is due to the energy migration between Eu3+ ions. And the interaction mechanism between Eu3+ ions is calculated, which is exchange interaction. © 2019, Science Press. All right reserved.
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页码：159 / 163
页数：4
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