Synthesis and optical properties of monodisperse spherical Y2O3-Eu+3 particles

被引：9
|
作者：
Zaitsev, S. V. [1 ]
Yermolayeva, Yu V. [2 ]
Gruzintsev, A. N. [3 ]
Kudrenko, E. A. [1 ]
Zverkova, I. I. [1 ]
Tolmachev, A. V. [2 ]
Emelchenko, G. A. [1 ]
机构：
[1] RAS, Inst Solid State Phys, Chernogolovka 142432, Russia
[2] Natl Acad Sci Ukraine, Inst Single Crystals, Sci & Technol Corp, UA-61001 Kharkov, Ukraine
[3] RAS, Inst Microelect Technol & High Pur Mat, Chernogolovka 142432, Russia
来源：
MATERIALS RESEARCH EXPRESS | 2014年 / 1卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
spherical nanoparticles; Y2O3-Eu+3; synthesis; structure; luminescence; RARE-EARTH; Y2O3;
D O I：
10.1088/2053-1591/1/1/015004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Research has been done into the luminescent properties of spherical Y2O3-Eu+3 nanoparticles with average diameters from 70 nm to 400 nm and 15% size dispersion, which are obtained by bath synthesis. The spectral- time characteristics of the most intense red luminescence of europium (similar to 611 nm) have been found to be dependent on nanosphere diameter, dopant concentration and optical pump power density. It is shown that the effects are related to the influence of surface nonradiative recombination and modification of the spontaneous emission rate in nanometer-scale dielectric solids.
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页数：12
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