Synthesis and luminescence properties of Li2BaSiO4:Eu3+ phosphors

被引：10
|
作者：
Xie, Mubiao [1 ]
Luo, Caiyan [1 ]
机构：
[1] Zhanjiang Normal Univ, Sch Chem Sci & Technol, Zhanjiang 524048, Peoples R China
来源：
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2012年 / 6卷 / 9-10期
关键词：
phosphor; luminescence; LEDs; Eu3+; LiBaSiO; LIGHT-EMITTING-DIODES; WHITE LEDS;
D O I：
10.1002/pssr.201206316
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Novel red phosphors Li2xBa1xEux SiO4 were synthesized using a high-temperature solid-state reaction, and their UV-Vis luminescence properties as well as decay curves were investigated. The excitation spectra indicate that the Li2xBa1xEux SiO4 phosphors can be effectively excited by near-ultraviolet (similar to 393 nm) light, dovetailed nicely with the UV light-emitting diodes (LED) chip. The optimum luminance phosphor Li1.88Ba0.88Eu0.12SiO4 shows red luminescence with a dominant 5D0 ? 7F2 emission at about 615 nm and suitable chromaticity coordinates (0.639, 0.359), indicating that the phosphor may be a potential candidate for near-UV InGaN-based w-LEDs. ((c) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
引用
收藏
页码：412 / 414
页数：3
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