Morphology control and luminescence properties of YAG:Eu phosphors prepared by spray pyrolysis

被引：139

作者：

Zhou, YH ^{[1
]}

Lin, J ^{[1
]}

Yu, M ^{[1
]}

Han, SM ^{[1
]}

Wang, SB ^{[1
]}

Zhang, HJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 08期

基金：

中国国家自然科学基金;

关键词：

optical materials; chemical synthesis; electron microscopy; luminescence;

D O I：

10.1016/S0025-5408(03)00141-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Starting from nitrate aqueous solutions with citric acid and polyethylene glycol (PEG) as additives, Y3Al5O12:Eu (YAG:Eu) phosphors were prepared by a two-step spray pyrolysis (SP) method. The obtained YAG:Eu phosphor particles have spherical shape, submicron size and smooth surface. The effects of process conditions of the spray pyrolysis on the crystallinity, morphology and luminescence properties of phosphor particles were investigated. The emission intensity of the phosphors increased with increasing of sintering temperature and solution concentration due to the increase of the crystallinity and particles size, respectively. Adequate amount of PEG was necessary for obtaining spherical particles, and the optimum emission intensity could be obtained when the concentration of PEG was 0.10 g/ml in the precursor solution. Compared with the YAG:Eu phosphor prepared by citrate-gel (CG) method with non-spherical morphology, spherical YAG:Eu phosphor particles showed a higher emission intensity. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1289 / 1299

页数：11

共 14 条

[1] GROWTH PARAMETER OPTIMIZATION AND TB-3+ SENSITIZATION OF CE-3+ ACTIVATED Y3AL5O12 PHOSPHOR [J].