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Luminescence and energy transfer mechanism in Sr9Sc(PO4)(7): Ce3+, Mn2+ phosphor
Dong X. L.; Zhang J. H.; Zhang X.; Hao Z. D.; Luo Y. S.
2014
发表期刊Journal of Luminescence
ISSNISBN/0022-2313
卷号148页码:60-63
摘要A series of Ce3+ and Mn2+ co-doped Sr9Sc(PO4)(7) phosphors have been synthesized by high temperature solid state reaction and their luminescence properties are investigated. The obtained phosphors exhibit a broad excitation band ranging from 240 to 350 nm and two emission bands centered at about 370 and 610 nm upon 310 nm excitation, resulting from the 5d-4f transitions of Ce3+ and the d-d forbidden transition of Mn2+, respectively. Energy transfer mechanism from Ce3+ to Mn2+ in Sr9Sc(PO4)(7) host matrix was studied and demonstrated to be a resonant type via a dipole-dipole mechanism based on the decay lifetime data. Furthermore, we have calculated the critical distance for Ce3+ -> Mn2+ energy transfer to be about 6.12 angstrom by the spectral overlap method. Through effective energy transfer, a color-tunable emission varied from blue to reddish orange can be realized by adjusting the ratio of Ce3+ to Mn2+. Our results indicate the novel Sr9Sc(PO4)(7): Ce3+, Mn2+ phosphor can be a promising candidate for a color-tunable phosphor applied in a UV white light emitting diodes. (C) 2013 Elsevier B.V. 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/181722/44136
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. Luminescence and energy transfer mechanism in Sr9Sc(PO4)(7): Ce3+, Mn2+ phosphor[J]. Journal of Luminescence,2014,148:60-63.
APA Dong X. L.,Zhang J. H.,Zhang X.,Hao Z. D.,&Luo Y. S..(2014).Luminescence and energy transfer mechanism in Sr9Sc(PO4)(7): Ce3+, Mn2+ phosphor.Journal of Luminescence,148,60-63.
MLA Dong X. L.,et al."Luminescence and energy transfer mechanism in Sr9Sc(PO4)(7): Ce3+, Mn2+ phosphor".Journal of Luminescence 148(2014):60-63.
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