Synthesis of SrAl2O4 : Eu, Dy phosphor nanometer powders by sol-gel   processes and its optical properties

doi:10.1016/j.matchemphys.2003.12.001

CORC > 北京大学 > 化学与分子工程学院

	Synthesis of SrAl2O4 : Eu, Dy phosphor nanometer powders by sol-gel processes and its optical properties
	Peng, TY ; Huajun, L ; Yang, HP ; Yan, CH
刊名	材料化学与材料物理学
	2004
关键词	long afterglow phosphor sol-gel method strontium aluminate hole trap optical properties LUMINESCENCE MECHANISM BA CO
DOI	10.1016/j.matchemphys.2003.12.001
英文摘要	Eu2+, Dy3+ co-doped strontium aluminate (SrA1(2)O(4)) phosphor nanometer powders with high brightness and long afterglow were prepared by heating the precursor gel (resulted from sol-gel method) at 900 degreesC and a reductive atmosphere of active carbon. The average particle size of the SrA1(2)O(4):Eu, Dy phosphor powders was 59 +/- 7 nm and its optical properties have been studied systematically. The broad band UV excited luminescence of the SrA1(2)O(4):Eu, Dy was observed at lambda(max) = 506 nm due to transitions from the 4f(6)5d(1) to the 47 configuration of the EU2+ ion. The results indicated that the main peaks in the emission and excitation spectrum shifted to the short wavelength compared with phosphor obtained by the solid-state reaction synthesis method. The decay speed of the afterglow for nanometer phosphors was faster than that obtained by the solid-state reaction method. (C) 2004 Elsevier B.V. All rights reserved.; Materials Science, Multidisciplinary; SCI(E); EI; 115; ARTICLE; 1; 68-72; 85
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/255025]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Peng, TY,Huajun, L,Yang, HP,et al. Synthesis of SrAl2O4 : Eu, Dy phosphor nanometer powders by sol-gel processes and its optical properties[J]. 材料化学与材料物理学,2004.
APA	Peng, TY,Huajun, L,Yang, HP,&Yan, CH.(2004).Synthesis of SrAl2O4 : Eu, Dy phosphor nanometer powders by sol-gel processes and its optical properties.材料化学与材料物理学.
MLA	Peng, TY,et al."Synthesis of SrAl2O4 : Eu, Dy phosphor nanometer powders by sol-gel processes and its optical properties".材料化学与材料物理学 (2004).