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    Up- and down-conversion luminescence in the oxyfluoride glass ceramics containing Ba 2+1.5xYb 1-xF 7:Tb 3+ nanocrystals

    Access Status
    Fulltext not available
    Authors
    Xin, F.
    Zhao, S.
    Jia, Guohua
    Huang, L.
    Deng, D.
    Wang, H.
    Xu, S.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Xin, F. and Zhao, S. and Jia, G. and Huang, L. and Deng, D. and Wang, H. and Xu, S. 2012. Up- and down-conversion luminescence in the oxyfluoride glass ceramics containing Ba 2+1.5xYb 1-xF 7:Tb 3+ nanocrystals. Materials Chemistry and Physics. 137 (1): pp. 177-181.
    Source Title
    Materials Chemistry and Physics
    DOI
    10.1016/j.matchemphys.2012.09.002
    ISSN
    0254-0584
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/43723
    Collection
    • Curtin Research Publications
    Abstract

    Transparent oxyfluoride borosilicate glass ceramics containing Ba 2+1.5xYb 1-xF 7:Tb 3+ nanocrystals were successfully prepared by a melt-quenching method with subsequent heat treatment. The precipitated crystalline phase in the glass matrix changed gradually from BaF 2 to Ba 2+1.5xYb 1-xF 7 with the increase of YbF 3 content, which was confirmed by the results of XRD, HRTEM and EDX measurements. The ultraviolet and visible up-conversion and near-infrared quantum cutting down-conversion emissions were observed and interpreted. These materials could be used to modify the solar spectrum and enhance the silicon solar cell efficiency by the up-conversion and down-conversion luminescence of Tb 3+-Yb 3+ couples in the oxyfluoride borosilicate glass ceramics. © 2012 Elsevier B.V. All rights reserved.

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