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    Luminescence properties of Eu 2+ and Mn 2+ doped Sr 1.7Mg 0.3SiO 4 phosphors

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    Authors
    Guo, M.
    Huang, L.
    Zhao, S.
    Deng, D.
    Wang, H.
    Hua, Y.
    Jia, Guohua
    Xu, S.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Guo, M. and Huang, L. and Zhao, S. and Deng, D. and Wang, H. and Hua, Y. and Jia, G. et al. 2012. Luminescence properties of Eu 2+ and Mn 2+ doped Sr 1.7Mg 0.3SiO 4 phosphors. Ceramics International. 38 (7): pp. 5571-5574.
    Source Title
    Ceramics International
    DOI
    10.1016/j.ceramint.2012.03.076
    ISSN
    0272-8842
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/32680
    Collection
    • Curtin Research Publications
    Abstract

    Eu 2+, Mn 2+ doped Sr 1.7Mg 0.3SiO 4 phosphors were prepared by high temperature solid-state reaction method. Their luminescence properties were studied. The emission spectra of Eu 2+ singly doped Sr 1.7Mg 0.3SiO 4 consist of a blue band (455 nm) and a green band (550 nm). The relative intensities of two emissions varied with Eu 2+ concentration. Eu 2+ and Mn 2+ co-doped Sr 1.7Mg 0.3SiO 4 phosphors emit three color lights and present whitish color. The blue (455 nm) and green (550 nm) emissions are attributed to the transitions of Eu 2+, while the red (670 nm) emission is originated from the transition of Mn 2+ ion. The results indicate the energy transfer from Eu 2+ to Mn 2+. The mechanism of the energy transfer is resonance-type energy transfer due to the spectral overlap between the emission of Eu 2+and the absorption of Mn 2+. © 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

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