Luminescence enhancement of BaMgSiO(4): Eu(2+) by adding borate as flux

CORC > 化学研究所 > 中国科学院化学研究所

	Luminescence enhancement of BaMgSiO(4): Eu(2+) by adding borate as flux
	Wu Fengqi 1,3; Wang Jiaguo 1,2; Jing Xiping 1; Yan Chunhua 1; Jianhua, Lin 1; Fuhui, Liao 1
刊名	JOURNAL OF RARE EARTHS
	2008-02-01
卷号	26 期号:1 页码:26-30
关键词	Bamgsio(4): Eu(2+) Luminescence Energy Transfer Flux Solid State Lighting Rare Earths
ISSN号	1002-0721
英文摘要	The luminescence of Eu(2+) in BaMgSiO(4) with BaB(2)O(4) as flux was studied. The emission spectrum of the phosphor consisted of two bands, peaking at about 398 run and 515 run, which were attributed to the emissions from different Eu(2+) sites in the lattice. When the BaB(2)O(4) flux was applied, the intensity of the 398 nm emission was not clearly affected, but the intensity of the 515 nm emission was enhanced by about ten times. Gaussian fitting showed that the emission band at around 515 nm could actually be resolved into two bands with peak wavelengths of 499 nm and 521 nm, respectively. The assignments of the emission bands to the cation sites were carried out according to the values of bond valence. The overlapping of the 398 nm emission band on the excitation band of 515 nm emission implied that energy transfer could occur from the luminescent center related to the 398 nm emission to the center related to the 515 nm emission, and the energy transfer process remarkably enhanced the intensity of the 515 nm emission band. The phosphor had strong excitation at around 350-400 nmu and emitted a bright greenluminescence. Thus it could have applications as a green component in solid-state lighting devices assembled by near-UV Light Emitting Diodes (LED) combined with tricolor phosphors.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000254512700005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/64715]
专题	中国科学院化学研究所
通讯作者	Wang Jiaguo
作者单位	1.Beijing Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325027, Peoples R China 3.Fuxin Adv Polytech Coll, Fuxing 123000, Peoples R China
推荐引用方式 GB/T 7714	Wu Fengqi,Wang Jiaguo,Jing Xiping,et al. Luminescence enhancement of BaMgSiO(4): Eu(2+) by adding borate as flux[J]. JOURNAL OF RARE EARTHS,2008,26(1):26-30.
APA	Wu Fengqi,Wang Jiaguo,Jing Xiping,Yan Chunhua,Jianhua, Lin,&Fuhui, Liao.(2008).Luminescence enhancement of BaMgSiO(4): Eu(2+) by adding borate as flux.JOURNAL OF RARE EARTHS,26(1),26-30.
MLA	Wu Fengqi,et al."Luminescence enhancement of BaMgSiO(4): Eu(2+) by adding borate as flux".JOURNAL OF RARE EARTHS 26.1(2008):26-30.