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Luminescence investigation and thermal stability study of Eu2+ and Eu2+-Mn2+ codoped (Ba,Sr)Mg2Al6Si9O30 phosphor
Alternative Title论文其他题名
Lu W.; Zhang X.; Wang Y.; Hao Z. D.; Liu Y. F.; Luo Y. S.; Wang X. J.; Zhang J. H.
2012
Source PublicationJournal of Alloys and Compounds
ISSN0925-8388
Volume513Pages:430-435
AbstractEu2+ and Eu2+-Mn2+ codoped (Ba,Sr)Mg2Al6Si9O30 phosphors have been synthesized by solid state reaction, and their luminescent properties are investigated. Under the excitation of 330 nm, it is observed that the emission of Eu2+ consists of two emission bands, located at around 370 and 450 nm, which are attributed to two Eu2+ centers (Eu2+(I) and Eu2+(II)) ions substituting for two different Ba2+ and Mg2+ sites, respectively. As Sr2+ gradually substitutes Ba2+, the emission bands of Eu2+(I) shift to longer wavelength whereas the emission bands of Eu2+(II) exhibit no change. This phenomenon is discussed in terms of the crystal-field strength. A detail analysis on the energy transfer from Eu2+ to Mn2+ in SrMg2Al6Si9O30 host is presented, which indicates the energy of the red emission of Mn2+ is derived mainly from Eu2+(I). We have also demonstrated that BaMg2Al6Si9O30:Eu2+, Mn2+ exhibits better thermal quenching properties than that of SrMg2Al6Si9O30:Eu2+, Mn2+ because of bigger activation energy. (C) 2011 Elsevier B.V. All rights reserved.
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/24669
Collection中科院长春光机所知识产出
Recommended Citation
GB/T 7714
Lu W.,Zhang X.,Wang Y.,et al. Luminescence investigation and thermal stability study of Eu2+ and Eu2+-Mn2+ codoped (Ba,Sr)Mg2Al6Si9O30 phosphor[J]. Journal of Alloys and Compounds,2012,513:430-435.
APA Lu W..,Zhang X..,Wang Y..,Hao Z. D..,Liu Y. F..,...&Zhang J. H..(2012).Luminescence investigation and thermal stability study of Eu2+ and Eu2+-Mn2+ codoped (Ba,Sr)Mg2Al6Si9O30 phosphor.Journal of Alloys and Compounds,513,430-435.
MLA Lu W.,et al."Luminescence investigation and thermal stability study of Eu2+ and Eu2+-Mn2+ codoped (Ba,Sr)Mg2Al6Si9O30 phosphor".Journal of Alloys and Compounds 513(2012):430-435.
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