Synthesis and photoluminescence properties of Eu2+ doped Sr9Sc(PO4)(7) phosphors for white light-emitting diodes

	Synthesis and photoluminescence properties of Eu2+ doped Sr9Sc(PO4)(7) phosphors for white light-emitting diodes
	Dong X. L.; Zhang J. H.; Zhang X.; Hao Z. D.; Lv S. Z.
	2014
发表期刊	Ceramics International
ISSN	ISBN/0272-8842
卷号	40 期号:4 页码:5421-5423
摘要	A series of Eu2+-activated Sr9Sc(PO4)(7) yellowish-green emitting phosphors were synthesized by conventional solid-state reaction. The photoluminescence (PL) properties and concentration quenching mechanism of the as-prepared phosphors were investigated. The emission spectrum exhibits a broad and asymmetric band peaking at 510 nm, which corresponds to the 4f(6)5d(1) -> 4f(7) transition of Eu2+. The excitation spectrum exhibits a broad band extending from 250 to 450 nm, which matches well with the.emission of near ultraviolet (n-UV) chips (350 430 nm). Non-radiative transitions between Eu2+ ions in the Sr9Sc(PO4)(7) host have been demonstrated to be attributable to dipole dipole interactions, and the critical distance was calculated to be 23.1 A. These results indicate that Sr9Sc(PO4)(7):Eu2+ phosphor could serve as a promising candidate for application in n-UV white-light LEDs. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44427
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Dong X. L.,Zhang J. H.,Zhang X.,et al. Synthesis and photoluminescence properties of Eu2+ doped Sr9Sc(PO4)(7) phosphors for white light-emitting diodes[J]. Ceramics International,2014,40(4):5421-5423.
APA	Dong X. L.,Zhang J. H.,Zhang X.,Hao Z. D.,&Lv S. Z..(2014).Synthesis and photoluminescence properties of Eu2+ doped Sr9Sc(PO4)(7) phosphors for white light-emitting diodes.Ceramics International,40(4),5421-5423.
MLA	Dong X. L.,et al."Synthesis and photoluminescence properties of Eu2+ doped Sr9Sc(PO4)(7) phosphors for white light-emitting diodes".Ceramics International 40.4(2014):5421-5423.

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