Phase transition, structure and luminescence of Eu:YAG nanophosphors by co-precipitation method

被引：52

作者：

Su, J. ^{[1
]}

Zhang, Q. L. ^{[2
]}

Shao, S. F. ^{[2
]}

Liu, W. P. ^{[2
]}

Wan, S. M. ^{[2
]}

Yin, S. T. ^{[2
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Coll Math & Phys, Nanjing 210044, Peoples R China

[2] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 470卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Phosphors; Chemical synthesis; Phase transitions; Optical spectroscopy; Luminescence; GEL METHOD; YAG; PHOSPHORS; TB;

D O I：

10.1016/j.jallcom.2008.02.045

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The methods to synthesize Eu:YAG phosphor by co-precipitation method and solid-state synthesis were compared. The dynamic aspects of the phase transition of Eu:YAG precursor synthesized by co-precipitation method were studied by using X-ray diffraction, infrared and Raman spectroscopy. The results showed that the precursor transformed to pure-YAG phase at the sintering temperature of 900 degrees C without intermediate phases present. Transmission electron microscope for the precursor powders sintered at 900-1200 degrees C showed that the powders were well-dispersed and had average size about 50-100 nm. The fluorescence spectra showed that the Eu:YAG phosphors had strong photoluminescence. The luminescence properties of the sintered powders depend on the sintering temperature were also analyzed. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：306 / 310

页数：5

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