Concentration effect on structural and luminescent properties of YVO4: Nd3+ nanophosphors

被引：36
|
作者：
Kolesnikov, I. E. [1 ]
Tolstikova, D. V. [1 ]
Kurochkin, A. V. [1 ]
Platonova, N. V. [1 ]
Pulkin, S. A. [1 ]
Manshina, A. A. [1 ]
Mikhailov, M. D. [2 ]
机构：
[1] St Petersburg State Univ, St Petersburg 199034, Russia
[2] Sci & Technol Inst Opt Mat Sci, St Petersburg, Russia
来源：
MATERIALS RESEARCH BULLETIN | 2015年 / 70卷
关键词：
Nanostructures; Sol-gel chemistry; Lattice dynamics; Luminescence; TRANSPARENT YAG CERAMICS; NANOPARTICLES; POLYCRYSTALLINE; PHOSPHORS;
D O I：
10.1016/j.materresbull.2015.06.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nd3+-doped YVO4 nanophophors were prepared using modified Pechini method. Synthesized samples consist of large particles about 1 micron and weakly agglomerated nanoparticles with size about 200 nm. The effect of the doping concentration on the structure and luminescence was investigated. It was found that increase of Nd3+ concentration leads to the growth of unit cell parameters and red shift of Raman lines. Concentration dependence on the luminescence intensity was studied under different excitation wavelengths. Decay curves of F-4(3/2)-I-4(11/2) transition were observed for different doping concentration. Lifetime of excited level F-4(3/2) was obtained from fitting. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：799 / 803
页数：5
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