ICCAS OpenIR
Luminescence enhancement of BaMgSiO(4): Eu(2+) by adding borate as flux
Wu Fengqi1,3; Wang Jiaguo1,2; Jing Xiping1; Yan Chunhua1; Jianhua, Lin1; Fuhui, Liao1
2008-02-01
Source PublicationJOURNAL OF RARE EARTHS
ISSN1002-0721
Volume26Issue:1Pages:26-30
AbstractThe 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.
KeywordBamgsio(4): Eu(2+) Luminescence Energy Transfer Flux Solid State Lighting Rare Earths
Indexed BySCI
Language英语
WOS IDWOS:000254512700005
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64716
Collection中国科学院化学研究所
Corresponding AuthorWang Jiaguo
Affiliation1.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
Recommended Citation
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.
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