Synthesis and luminescent properties of a novel red-emitting phosphor: Eu3+-activated Ba2ScO3F

被引：8
|
作者：
Zhong, Jiyou [1 ,2 ,3 ]
Zhuang, Weidong [1 ,2 ]
Xing, Xianran [3 ]
Liu, Ronghui [1 ,2 ]
Chen, Guantong [1 ,2 ]
Liu, Yuanhong [1 ,2 ]
Chen, Lei [1 ,2 ]
机构：
[1] Gen Res Inst Nonferrous Met, Natl Engn Res Ctr Rare Earth Mat, Beijing 100088, Peoples R China
[2] Grirem Adv Mat Co Ltd, Beijing 100088, Peoples R China
[3] Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China
来源：
MATERIALS LETTERS | 2014年 / 131卷
基金：
中国国家自然科学基金;
关键词：
Oxyfluoride; Phosphors; White LED; Luminescence;
D O I：
10.1016/j.matlet.2014.06.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel red-emitting Ba2ScO3F:Eu3+ phosphor was prepared by high-temperature solid-state reaction method. The structure and luminescence properties of the obtained phosphors were investigated. The crystallographic occupancy of Eu3+ in Ba2ScO3F was studied and verified to be the site of Sc3+ ions. Photoluminescence of the optimized Ba2Sc0.94O3F:0.06Eu(3+) phosphor showed that the phosphor can be efficiently excited by ultraviolet (395 nm) and blue (464 nm) light, and exhibits an intense red emission at 612 nm (due to D-5(0) -> F-7(2) electric dipole transition of Eu3+ ions). The dependence of the luminescence intensity on temperatures was measured, and showed a satisfactory thermal quenching effect. These results suggest that the phosphor could be a potential for applications in w-LEDs. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：248 / 251
页数：4
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