Synthesis of Ba3Si6O12N2:Eu2+ Green Phosphors Using Ba3SiO5:Eu2+ Precursor and Their Luminescent Properties

被引：13
|
作者：
Kang, Eun-Hee [1 ]
Choi, Sung-Woo
Hong, Seong-Hyeon
机构：
[1] Seoul Natl Univ, WCU Hybrid Mat Program, Dept Mat Sci & Engn, Seoul 151744, South Korea
来源：
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY | 2012年 / 1卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
LIGHT-EMITTING-DIODES; CA-ALPHA-SIALON; PHOTOLUMINESCENCE PROPERTIES; YELLOW; CAALSIN3-EU2+; FLUORESCENCE; EMISSION; SILICATE; LEDS; EU3+;
D O I：
10.1149/2.015201jss
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Green-emitting Ba3Si6O12N2:Eu2+ phosphors were synthesized by Ba3SiO5:Eu2+ precursor method, and their phase, morphology, photoluminescence (PL) properties were investigated. Contrary to the solid-state reaction technique, the precursor method yielded the single phase Ba3Si6O12N2:Eu2+ with a high PL intensity. The influence of calcination temperature, Si3N4 content, and Eu2+ doping concentration on the phase formation and PL properties were studied. As-synthesized Ba3Si6O12N2:Eu2+ phosphors showed a strong emission at 528 nm under the excitation of lambda(exc) = 400 nm, and the highest emission intensity was observed in Ba3-xSi6O12N2:Eu-x(2+) (x = 0.2) phosphor, which was calcined at 1400 degrees C in Si3N4 rich condition. The thermal stability of synthesized Ba3Si6O12N2:Eu2+ phosphor was examined and compared with that of commercial (Sr,Ba)(2)SiO4:Eu2+ and beta-SiAlON:Eu2+ green phosphors. (C) 2012 The Electrochemical Society. All rights reserved.
引用
收藏
页码：R11 / R14
页数：4
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