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    Eu2+/Sm3+ ions co-doped white light luminescence SrSiO3 glass-ceramics phosphor for White LED

    Access Status
    Fulltext not available
    Authors
    Cui, Z.
    Ye, R.
    Deng, D.
    Hua, Y.
    Zhao, S.
    Jia, Guohua
    Li, C.
    Xu, S.
    Date
    2011
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Cui, Z. and Ye, R. and Deng, D. and Hua, Y. and Zhao, S. and Jia, G. and Li, C. et al. 2011. Eu2+/Sm3+ ions co-doped white light luminescence SrSiO3 glass-ceramics phosphor for White LED. Journal of Alloys and Compounds. 509 (8): pp. 3553-3558.
    Source Title
    Journal of Alloys and Compounds
    DOI
    10.1016/j.jallcom.2010.12.058
    ISSN
    0925-8388
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/20198
    Collection
    • Curtin Research Publications
    Abstract

    Eu2+/Sm3+ co-doped silicate glass was prepared by high temperature melting under reducing atmosphere and the Eu 2+/Sm3+ co-doped SrSiO3 transparent glass-ceramics were obtained after heat-treatment. X-ray diffraction (XRD) and Raman spectra confirmed the formation of SrSiO3 nano-crystals in the glass matrix. The photoluminescence excitation (PLE) spectra and photoluminescence (PL) spectra of the samples were measured. A broad emission band from 400 nm to 550 nm due to the 4f65d1 ? 4f7 transitions of Eu2+ was observed, as well as several sharp emission peaks at 563 nm, 600 nm, 646 nm and 713 nm ascribed to the 4f ? 4f transitions of Sm3+. The luminescence properties of the glass ceramics with different molar ratio of Eu2+/Sm3+ were studied and the corresponding chromaticity coordinates were calculated. The ultraviolet light-emitting diode (UV-LED) excitable glass-ceramics emitting white light were obtained by tuning the relative emission intensity of Eu 2+ and Sm3+. The results indicate that the Eu 2+/Sm3+ co-doped SrSiO3 transparent glass-ceramics can be used as a potential matrix material for White LED under UV-LED excitation. © 2010 Elsevier B.V. All rights reserved.

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