Luminescence properties of novel Ba2MgWO6:Eu3+ and g-C3N4/Ba2MgWO6:Eu3+ phosphors

被引：25
作者：
Han, Bing [1 ]
Liu, Bingkun [1 ]
Zhang, Jie [1 ]
Shi, Hengzhen [1 ]
机构：
[1] Zhengzhou Univ Light Ind, Sch Mat & Chem Engn, Zhengzhou 450002, Peoples R China
来源：
OPTIK | 2017年 / 131卷
基金：
中国国家自然科学基金;
关键词：
Phosphors; Optical materials and properties; Luminescence; Ba2MgWO6:Eu3+; g-C3N4/Ba2MgWO6:Eu3+; PHOTOLUMINESCENCE PROPERTIES; DOUBLE PEROVSKITES; RED PHOSPHOR; MECHANISM;
D O I：
10.1016/j.ijleo.2016.11.208
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This work reported the photoluminescence properties of novel red-light-emitting phosphor Ba2MgWO6:Eu3+ prepared by a conventional solid state reaction at high temperature. A broadband sensitized red emission was obtained in Ba2MgWO6:Eu3+ phosphor due to the energy transfer from W6+-O2- groups to Eu3+. The concentration quenching phenomenon and mechanism of Eu3+ in Ba2MgWO6 host was investigated in detail. Based on the obtained results, a series of g-C3N4/Ba2MgWO6:Eu3+ composite phosphors were also prepared. Under the excitation of ultraviolet light, these composite phosphors show tunable emission from blue to red region, in which white light emission can be obtained in term of appropriate quality proportion of g-C3N4 relative to Ba2MgWO6:Eu3+. This work not only develops a novel red-emitting phosphor for application in white light-emitting diodes, but also enlarges the research scope of g-C3N4 based materials. (C) 2016 Elsevier GmbH. All rights reserved.
引用
收藏
页码：764 / 768
页数：5
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