Preparation and characterization of optical spectroscopy of Lu2O3:Eu nanocrystals

被引：44

作者：

Xu, M

Zhang, WP

Dong, N

Jiang, Y

Tao, Y

Yin, M

机构：

[1] Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Peoples R China

[3] Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100039, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2005年 / 178卷 / 02期

关键词：

nanocrystalline Lu2O3 : Eu; combustion synthesis; photoluminescence; amorphous phase;

D O I：

10.1016/j.jssc.2004.09.003

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Nanoscale Lu2O3:Eu powders were prepared by solution combustion synthesis. X-ray diffraction (XRD), high-resolution electronic microscope (HREM), Fourier transform infrared spectroscopy (FT-IR), excitation and emission spectra, as well as fluorescent decay curves were measured to characterize the structure and luminescent properties of the samples. The results show that the compound of composition Lu2O3 crystallizes in pure cubic structure. By changing the ratio of glycine to nitrate in the combustion process, the particle size varies from 40 nm to less than 5 nm. The emission and excitation spectra strongly depend on the particle size of the samples. Novel emission band, red-shift of charge transfer band (CTB) and shortening of lifetime were observed in nanoscale samples. (c) 2004 Elsevier Inc. All rights reserved.

引用

页码：477 / 482

页数：6

共 16 条

[1] Hole traps in Lu2O3:Eu ceramic scintillators.: II.: Radioluminescence and thermoluminescence [J].