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Issue 11, 2012
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Solvothermal synthesis and luminescence properties of BaCeF5, and BaCeF5:Tb3+ nanocrystals

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Abstract

Cubic monodisperse BaCeF5 and BaCeF5:Tb3+ nanocrystals have been successfully synthesized by a citric acid assisted solvothermal method. The crystalline phase, size, morphology, and luminescence properties were characterized using powder X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), photoluminescence (PL), photoluminescent excitation spectra (PLE) as well as dynamics decay. The results reveal that the Tb3+-doped BaCeF5 sample shows a strong green emission centered at 546 nm, corresponding to the 5D47F5 transition of Tb3+ due to an efficient energy transfer from Ce3+ to Tb3+. The decay lifetime of Ce3+ monotonically increases with increase of Tb3+ concentration. The critical energy transfer distance between Ce3+ and Tb3+ was also calculated by methods of concentration quenching and spectral overlapping. Experimental analysis and theoretical calculations reveal that the dipole–dipole interaction should be the dominant mechanism for the Ce3+–Tb3+ energy transfer.

Graphical abstract: Solvothermal synthesis and luminescence properties of BaCeF5, and BaCeF5:Tb3+ nanocrystals

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Publication details

The article was received on 17 Jan 2012, accepted on 07 Mar 2012 and first published on 07 Mar 2012


Article type: Paper
DOI: 10.1039/C2RA20094E
Citation: RSC Adv., 2012,2, 4697-4702
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    Solvothermal synthesis and luminescence properties of BaCeF5, and BaCeF5:Tb3+ nanocrystals

    T. Sheng, Z. Fu, J. Wang, X. Fu, Y. Yu, S. Zhou, S. Zhang and Z. Dai, RSC Adv., 2012, 2, 4697
    DOI: 10.1039/C2RA20094E

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