Eu2+ -sensitized Sr6Ca4(PO4)6F2:Tb3+ phosphors: An investigation on their luminescence and energy transfer

被引：8

作者：

Chen, Peican ^{[1
]}

Mo, Fuwang ^{[1
]}

Guan, Anxiang ^{[1
]}

Liu, Xianhua ^{[1
]}

Tao, Liyong ^{[1
]}

Tang, Jingqi ^{[1
]}

Xu, Jiehua ^{[1
]}

Xu, Yonghui ^{[1
]}

Zhou, Liya ^{[1
]}

机构：

[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2015年 / 41卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Optical materials; Luminescence; Phosphors; TB3+; CE3+;

D O I：

10.1016/j.ceramint.2015.08.048

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 novel series of Sr6Ca4(PO4)(6)F-2:Eu2+,Tb3+ (SCPF:Eu2+,Tb3+) powder samples is synthesized using a high-temperature solid-state method. X-ray diffraction, FT-IR spectra, photoluminescence spectroscopy and quantum efficiency are used to characterize the as-prepared samples. Excited by near-ultraviolet radiation, tunable color tone is obtained for Eu2+ and Tb3+ co-doped SCPF samples by adjusting doping concentration. Energy transfer from Eu2+ to Tb3+ in SCPF phosphor is also investigated at a critical distance of 28.09 angstrom. Corresponding chromaticity coordinates are calculated based on the emission band. Results suggest that SCPF:Eu2+,Tb3+ is a promising blue-green phosphor for light-emitting diodes or displays. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：15005 / 15009

页数：5

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