Preparation and luminescent properties of Tb3+ and Tb3+-Ce3+ doped Ba9Y2Si6O24 phosphors

被引：32

作者：

Lee, Seul ^{[1
]}

Park, Sangmoon ^{[1
]}

机构：

[1] Silla Univ, Dept Engn Energy & Appl Chem, Pusan 617736, South Korea

来源：

JOURNAL OF LUMINESCENCE | 2013年 / 143卷

基金：

新加坡国家研究基金会;

关键词：

Orthosilicate; Phosphors; Cross-relaxation; Energy transfer; TUNABLE LUMINESCENCE; CROSS-RELAXATION; BA;

D O I：

10.1016/j.jlumin.2013.05.008

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Luminescent materials composed of Ba9-3m/2TbmY2Si6O24 (m=0.005-0.6) were prepared via a solid-state reaction. The dependence of the luminescent intensity of the Tb3+-doped orthosilicates on the Tb3+ content (m=0.005-0.06) is also investigated. The photoluminescence properties of Tb3+ in Ba9-3m/2TbmY2Si6O24 orthosilicate phosphors were elucidated. Using these phosphors, the desired CIE values including emissions throughout the blue, blue-green, and green regions of the spectra were achieved. Co-doping Ce3+ into the Tb3+-doped host structure enabled a high-energy charge-transfer from Ce3+ to Tb3+; accordingly, the Tb3+-Ce3+-doped green phosphors will be useful for applications involving white-light near-UV light-emitting-diodes. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：215 / 218

页数：4

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