Enhanced photoluminescence of BaAl2S4:Eu2+ phosphor by Mg2+ ions doping

被引：6

作者：

Yu, Ruijin ^{[1
,2
]}

Noh, Hyeon Mi ^{[2
]}

Moon, Byung Kee ^{[2
]}

Choi, Byung Chun ^{[2
]}

Jeong, Jung Hyun ^{[2
]}

Jang, Kiwan ^{[3
]}

Lee, Ho Sueb ^{[3
]}

Yi, Soung Soo ^{[4
]}

机构：

[1] Northwest A&F Univ, Coll Sci, Yangling 712100, Shaanxi, Peoples R China

[2] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea

[3] Changwon Natl Univ, Dept Phys, Chang Won 641773, South Korea

[4] Silla Univ, Dept Elect Mat Engn, Pusan 617736, South Korea

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

Luminescence; Thioaluminate; Eu2+; Phosphor; LUMINESCENCE PROPERTIES; EU2+; EUROPIUM; CAGA2S4; ENERGY; CA; SR; BA;

D O I：

10.1016/j.ceramint.2013.04.041

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A series of Ba1-xMgxAl2S4:0.10Eu(2+) (0.00 <= x <= 0.15) phosphors was synthesized under vacuum in sealed silica tubes. The effects of Mg2+ doping on the structure and photoluminescence (PL) properties of BaAl2S4:Eu2+ were investigated systematically. When Ba2+ was substituted by 6 mol% Mg2+, the PL intensity of the resulting Ba0.84Mg0.06Al2S4:0.10Eu(2+) phosphor was approximately 2.5 times stronger than that of the single-doped BaAl2S4:0.10Eu(2+) phosphor under 395 nm excitation. The fluorescence lifetime of Eu2+ in Ba0.84Mg0.06Al2S4:0.10Eu(2+) was calculated as 0.133 mu s. Commission Internationale de I'Eclairage chromaticity coordinates showed that the phosphor emissions are in the blue region. The synthesized phosphors show great promise for future applications in white light emitting diodes. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：9709 / 9713

页数：5

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