Luminescent properties of KGd1-x(WO4)2:Eux3+ and KGd1-x(WO4)2-y(MoO4)y:Eux3+ phosphors in UV-VUV regions

被引：44

作者：

Gao, Xiaolan ^{[1
]}

Wang, Yuhua ^{[1
,2
]}

Wang, Dan ^{[1
]}

Liu, Bitao ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Mat Sci, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2009年 / 129卷 / 08期

关键词：

KGd1-x(WO4)(2-y)(MoO4)(y):Eu-x(3+); UV-VUV; Photoluminescence; SPECTROSCOPIC PROPERTIES; KGD(WO4)(2); CRYSTALS; BRILLOUIN;

D O I：

10.1016/j.jlumin.2009.03.007

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

KGd1-x(WO4)(2-y)(MoO4)(y):Eu-x(3+)(0.1 <= x <= 0.75, y = 0 and 0.2) phosphors are synthesized through traditional solid-state reaction and their luminescent properties in ultraviolet (UV) and vacuum ultraviolet (VUV) regions are investigated. Under 147nm excitation, these phosphors show characteristic red emission with good color purity. In order to improve their emission intensity, the MoO42- (20wt%) is introduced into the anion of KGd1-x(WO4):EUx3+. The Mo6+ and Eu3+ co-doped 4 KGd(WO4)(2) phosphors show higher emission intensity in comparison with the singly Eu3+-doped KGd(WO4)(2) in VUV region. The chromaticity coordination of KGd0.45(WO4):EU0.553+ is (x = 0.669, y = 0.331), while that of KGd0.45(WO4)(1.8)(MoO4)(0.2):Eu-0.55(3+) is (x = 0.666, y = 0.334) in VUV region. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：840 / 843

页数：4

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