Synthesis and luminescence properties of BaSO4 phosphor activated with Sm

被引：18

作者：

Cao, Renping ^{[1
]}

Qin, Zhengdong ^{[1
]}

Yu, Xiaoguang ^{[1
]}

Wu, Donglan ^{[1
]}

Zheng, Guotai ^{[1
]}

Li, Wensheng ^{[2
]}

机构：

[1] Jinggangshan Univ, Coll Math & Phys, Jian 343009, Jiangxi, Peoples R China

[2] Jinggangshan Univ, Dept Personnel, Jian 343009, Jiangxi, Peoples R China

来源：

OPTIK | 2016年 / 127卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Sm2+/3+ ion; Luminescence; Phosphor; Solid state reaction method; PHOTOLUMINESCENCE; FLUORESCENCE; ABSORPTION; CAF2; SRF2;

D O I：

10.1016/j.ijleo.2015.10.220

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

BaSO4 phosphor activated with Sm are prepared by the high temperature solid state reaction method in air, and its crystal structure, morphology, and luminescence properties are investigated. Broadband PLE spectrum are observed within the range 250-580 nm owing to mainly the 4f-5d transitions of Sm2+ ions, and PL spectrum consists seven emission bands in the range of 550-780 nm owing to mainly D-5(O) -> F-7(j) (1=0, 1, 2, and 3) transitions of Sm2+ ion and (4)G(5/2) -> H-6(J) (1=5/2, 7/2, and 9/2) transitions of Sm3+ ions. Sm2+ ions can exist steadily in BaSO4:Sm phosphor sintered at different temperature and time in air. The optimum Sm2+/3+ doping concentration, sintering temperature and time are about 2 mol%, 800 C and 30 min, respectively. The luminous mechanisms are discussed by the schematic energy level diagrams of Sm3+ and Sm2+ ions. (c) 2015 Elsevier GmbH. All rights reserved.

引用

页码：1126 / 1129

页数：4

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