Photoluminescent properties of LaF3:Eu3+ and GdF3:Eu3+ nanoparticles prepared by co-precipitation method

被引：62
|
作者：
Grzyb, T. [1 ]
Lis, S. [1 ]
机构：
[1] Adam Mickiewicz Univ Poznan, Fac Chem, Dept Rare Earths, PL-60780 Poznan, Poland
来源：
JOURNAL OF RARE EARTHS | 2009年 / 27卷 / 04期
关键词：
nanofluorides; phosphors; luminescence; energy transfer; rare earths; LUMINESCENCE; FILMS; SILICA;
D O I：
10.1016/S1002-0721(08)60294-X
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
LaF3:Eu3+ and GdF3:Eu3+ nanoparticles were prepared by a co-precipitation method in the presence of the chelating agent, citric acid. The structural properties of the products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The average crystallite size was estimated from the full-width at half-maximum (FWHM) of the diffraction peaks by the Scherrer equation. The sizes of the nanoparticles were 12 nm for LaF3:Eu3+ and 17 nm for GdF3:Eu3+. The luminescent properties of the nanoparticles were investigated by excitation and emission spectra. Energy transfer from Gd3+ to Eu3+ was observed.
引用
收藏
页码：588 / 592
页数：5
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