A potential red phosphor LiGd(MoO4)2:Eu3+ for light-emitting diode application

被引:61
作者
Yi, Linghong [1 ]
He, Xipu [1 ]
Zhou, Liya [1 ]
Gong, Fuzhong [1 ]
Wang, Rongfang [1 ]
Sun, Jianhua [1 ]
机构
[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
关键词
Optical materials; Phosphor; Luminescence; LUMINESCENCE; NANOCRYSTALS; EMISSION; CHIP;
D O I
10.1016/j.jlumin.2010.02.006
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Eu3+-doped LiGd(MoO4)(2) red phosphor was synthesized by solid-state reaction, and its photoluminescent properties were measured. The effect of Eu3+ doping concentration on PL intensity was investigated, and the optimum concentration of Eu3+ doped in LiGd(MoO4)(2) was found to be 30 mol%. Compared with Y2O2S:0.05Eu(3+), Na0.5Gd0.5MoO4:Eu3+ and KGd(MoO4)(2):Eu3+, the LiGd(MoO4)(2):Eu3+ phosphor showed a stronger excitation band around 395 nm and a higher intensity red emission of Eu3+ under 395 nm light excitation. For the first time, intensive red light-emitting diodes (LEDs) were fabricated by combining phosphor and a 395 nm InGaN chip, confirming that the LiGd(MoO4)(2):Eu3+ phosphor is a good candidate for LED applications. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:1113 / 1117
页数:5
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