Sol-gel preparation and photoluminescence properties of Ce3+-activated Y3Al5O12 nano-sized powders

被引：26

作者：

Fadlalla, H. M. H. ^{[1
]}

Tang, Chengchun ^{[2
]}

机构：

[1] Univ Khartoum, Fac Educ, Dept Phys, Omdurman 11115, Sudan

[2] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 2009年 / 311卷 / 14期

基金：

中国国家自然科学基金;

关键词：

Characterization; Doping; X-ray diffraction; Phosphors; LUMINESCENCE PROPERTIES; SPRAY-PYROLYSIS; YAG; ENHANCEMENT; PARTICLES; PHOSPHORS; TB;

D O I：

10.1016/j.jcrysgro.2009.04.040

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Trivalent cerium-doped yttrium aluminum garnet (YAG:Ce3+) nanoparticles were successfully prepared by a facile sol-gel technique. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence (PL) spectroscopy were used to characterize the as-prepared phosphors. Well-crystallized fine nanoparticles were obtained at 1000 degrees C. Single-crystal nanoparticles with irregular shapes were obtained, with crystallite sizes ranging between 20 and 60 nm. PL intensity of the particles increased monotonically with decreasing Ce doping concentration and showed the maximum value at 0.1 at%. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：3737 / 3741

页数：5

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