Synthesis and emission properties of Ca3Nb2O8:Sm3+ phosphor and the emission improvement by Li+ ion

被引：22
|
作者：
Cao, Renping [1 ]
Huang, Jijun [1 ]
Ceng, Xiangfeng [1 ]
Hu, Zuofu [1 ]
Chen, Ting [1 ]
Hu, Wen [1 ]
Zhang, Xinqin [1 ]
机构：
[1] Jinggangshan Univ, Coll Math & Phys, Jian 343009, Jiangxi, Peoples R China
来源：
OPTIK | 2017年 / 135卷
基金：
中国国家自然科学基金;
关键词：
Phosphors; Perovskite; Sm3+ ion; Optical properties; Energy transfer; Tunable emission; OPTICAL-PROPERTIES; ENERGY-TRANSFER; PHOTOLUMINESCENCE PROPERTIES; LUMINESCENCE PROPERTIES; SM; DY;
D O I：
10.1016/j.ijleo.2017.01.064
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Ca3Nb2O8:Sm3+ phosphor is synthesized by solid-state reaction method in air. Host Ca3Nb2O8 emits blue light with excitation 260 and 314 nm, and its emission band peaking at 460 nm is attributed to the T-3(1,2) -> (1)A(1) transations in [Nb2O86-] group. Ca3Nb2O8:Sm3+ phosphor with excitation 314 nm shows a systematically tunable emission by adjusting Sm3+ ion concentration, and only emits reddish-orange light with excitation 407 nm. Excitation band indicates that Ca3Nb2O8:Sm3+ phosphor may be effectively excited by (similar to 407 nm) near ultraviolet light-emitting diode chip. The optimal Sm3+ ion concentration is 5 mol% in Ca3Nb2O8:Sm3+ phosphor. Emission intensity of Ca3Nb2O8:Sm3+ phosphor may be increased similar to 1.4 times by co-doping Li+ ions as charge compensator and fluxing agent roles. The experimental results will contribute to studying novel Sm3+-doped luminescent materials. (C) 2017 Elsevier GmbH. All rights reserved.
引用
收藏
页码：124 / 128
页数：5
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