Synthesis, luminescence and effect of heat treatment on the properties of Dy3+-doped YVO4 phosphor

被引:48
作者
Do Han, S
Khatkar, SP [1 ]
Taxak, VB
Sharma, G
Kumar, D
机构
[1] Maharshi Dayanand Univ, Rohtak 124001, Haryana, India
[2] Korea Inst Energy Res, Taejon 305600, South Korea
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2006年 / 129卷 / 1-3期
关键词
combustion synthesis; urea; YVO4 : Dy3+; phosphor; photoluminescence spectra;
D O I
10.1016/j.mseb.2006.01.002
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Dysprosium-activated yttrium vanadate phosphor was synthesized at 500 degrees C by combustion method using urea as fuel and metal nitrates as precursor. The phosphors thus obtained were treated at different temperatures from 700 to 1100 degrees C for 2-3 h to get better luminescent properties. The characteristics emission peaks of Dy3+ due to the transitions of F-4(9/2) -> H-6(15/2) at 483 nm and F-4(9/2) -> H-6(13/2) at 573 nm were observed in the emission spectra. Scanning electron microscopy (SEM) investigations were carried out to understand surface morphological features and the particle size of the phosphor. The uniformity of phase of Dy3+ doped YVO4 phosphor was checked by X-ray diffraction (XRD) technique. In addition, the dependence of the luminescence intensity on Dy3+ concentrations and effect of heat treatment on the particle size of the phosphor have also been discussed. The particle size of the phosphor after heat treatment at 100 degrees C was found to be similar to 1 m mu (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:126 / 130
页数:5
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