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    Potential tunable white-emitting phosphor lt;LiSr4(BO3)3:Ce3+, Eu2+ for ultraviolet light-emitting diodes

    Access Status
    Fulltext not available
    Authors
    Wang, Q.
    Deng, D.
    Hua, Y.
    Huang, L.
    Wang, H.
    Zhao, S.
    Jia, Guohua
    Li, C.
    Xu, S.
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wang, Q. and Deng, D. and Hua, Y. and Huang, L. and Wang, H. and Zhao, S. and Jia, G. et al. 2012. Potential tunable white-emitting phosphor LiSr4(BO3)3:Ce3+, Eu2+ for ultraviolet light-emitting diodes. Journal of Luminescence. 132 (2): pp. 434-438.
    Source Title
    Journal of Luminescence
    DOI
    10.1016/j.jlumin.2011.09.003
    ISSN
    0022-2313
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/32276
    Collection
    • Curtin Research Publications
    Abstract

    A novel Ce3/Eu2 co-activated LiSr4(BO 3)3 phosphor has been synthesized by traditional solid-state reaction. The samples could display varied color emission from blue towards white and ultimately to yellow under the excitation of ultraviolet (UV) light with the appropriate adjustment of the relative proportion of Ce 3/Eu2. The resonance-type energy transfer mechanism from Ce3 to Eu2 in LiSr4(BO3) 3:Ce3, Eu2 phosphors is dominant by electric dipoledipole interaction, and the critical distance is calculated to be about 29.14 Å by the spectra overlap method. White light was observed from LiSr4(BO3)3:mCe3, nEu2 phosphors with chromaticity coordinates (0.34, 0.30) upon 350 nm excitation. The LiSr4(BO3)3:Ce3, Eu2 phosphor has potential applications as an UV radiation-converting phosphor for white light-emitting diodes. © 2011 Elsevier B.V. All rights reserved.

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