Synthesis and luminescence properties of Eu3+-activated NaLa(MoO4) (WO4) phosphor

被引：35
|
作者：
Zeng Lu [1 ]
Tang Wanjun [1 ]
机构：
[1] S Cent Univ Nationalities, Hubei Key Lab Catalysis & Mat Sci, Coll Chem & Mat Sci, Wuhan 430074, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2012年 / 38卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Phosphors; Tungstomolybdate; Photoluminescence properties; EU3+; BI3+;
D O I：
10.1016/j.ceramint.2011.06.047
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：
NaLa1-y(MoO4)(2-x)(WO4)(x):yEu(3+) series red-emitting phosphors have been synthesized by a combustion route and their crystal structure, optical and luminescent properties have been investigated. Their emission spectra show an intense red emission at 616 nm due to the D-5(0) -> F-7(2) transition of Eu3+. As the tungstate content increases, the intensity of D-5(0) -> F-7(2) emission of Eu3+ activated at wavelength of 467 nm is found to increase and reaches a maximum when the relative ratio of Mo/W is 1:1. Also, the effect of Eu3+ concentration on the luminescence behavior of the solid solutions is examined. The optical properties of NaLa0.9Eu0.1(MoO4)(WO4) phosphor make it attractive for the application in white-lighte-mitting diodes (LEDs), in particular for near-UV InGaN-based white-LEDs. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：837 / 840
页数：4
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