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dc.contributor.authorXin, F.
dc.contributor.authorZhao, S.
dc.contributor.authorXu, S.
dc.contributor.authorHuang, L.
dc.contributor.authorJia, Guohua
dc.contributor.authorDeng, D.
dc.contributor.authorWang, H.
dc.identifier.citationXin, F. and Zhao, S. and Xu, S. and Huang, L. and Jia, G. and Deng, D. and Wang, H. 2011. Structure and luminescence properties of Eu/Tb codoped oxyfluoride glass ceramics containing Sr 2GdF 7 nanocrystals. Optical Materials. 34 (1): pp. 85-88.

Eu/Tb codoped transparent oxyfluoride borosilicate glass ceramics containing Sr 2GdF 7 nanocrystals were fabricated under a reductive atmosphere and the conversion of Eu 3+ ions to Eu 2+ ions was observed. The Sr 2GdF 7 nanocrystals with an average size of 32 nm were homogeneously precipitated in the oxyfluoride borosilicate glass matrix, which could be evidenced by X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy-dispersive X-ray (EDX) spectroscopy. The enhancement of photoluminescence emission intensity, reduction of the relative emission intensities between 5D 0 ? 7F 2 and 5D 0 ? 7F 1, and long fluorescence lifetimes of Eu 2+, Eu 3+, and Tb 3+ ions revealed that more rare earth ions were partitioned into the low phonon energy environment Sr 2GdF 7 nanocrystals. Under ultraviolet excitation, pure and bright white light emission was obtained in the oxyfluoride borosilicate glass ceramic, which may be a potential blue, green and red-emitting phosphor for white LEDs. © 2011 Elsevier B.V. All rights reserved.

dc.titleStructure and luminescence properties of Eu/Tb codoped oxyfluoride glass ceramics containing Sr 2GdF 7 nanocrystals
dc.typeJournal Article
dcterms.source.titleOptical Materials
curtin.departmentNanochemistry Research Institute
curtin.accessStatusFulltext not available

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