Abstract
CaF2:Ce3+/Mn2+ sub-micro cubes and nanospheres were successfully prepared through an ionic liquid-based hydrothermal method. OmimPF6 and OmimBF4 were utilized to introduce a new fluoride source and act as templates. The effects of ionic liquid amount and species on the morphologies and sizes of the nanocrystals have been studied. The photoluminescence properties of CaF2:Ce3+/Mn2+ sub-micro cubes have been discussed, and the results show that the emission intensity of Mn2+ ions can be enhanced by co-doping with Ce3+ ions through an efficient resonance-type energy transfer process.
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Acknowledgments
This work is financially supported by the National Natural Science Foundation of China (Grants No. 21171066 and No. 51272085), the China Postdoctoral Science foundation (Grant No. 2012M510869), the Graduate Innovation Fund of Jilin University (Grant No. 450091202148), and the Key Technology and Equipment of Efficient Utilization of Oil Shale Resources (No: OSR-05).
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Song, Y., Deng, Y., Zhou, H. et al. Ionic liquid-based hydrothermal synthesis and luminescent properties of CaF2:Ce3+/Mn2+ nanocrystals. J Nanopart Res 14, 1258 (2012). https://doi.org/10.1007/s11051-012-1258-x
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DOI: https://doi.org/10.1007/s11051-012-1258-x