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Preparation and Characteristics of Ca2NaMg2V3O12:Sm3+ Single-Phased White-Emitting Phosphors

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Abstract

Novel single-phased phosphors Ca2NaMg2-V3O12:xSm3+ that exhibit efficient white-light photoluminescence properties have been successfully synthesized by the solid-state reaction method. The formation of a single Ca2NaMg2V3O12 phase has been confirmed by X-ray powder diffraction (XRD). The wavelength-tunable white light is realized by coupling of the broad emission band at 500 nm due to a V5+−O2− charge-transfer state transition and the sharp emission peaks at 564, 616, 650 and 708 nm assigned to 4G5/2→6HJ (J = 5/2, 7/2, 9/2, 11/2) transitions of the Sm3+ ion. The luminescence color can be tuned from green to white by adjusting the doping concentration of Sm3+. When the doping concentration of Sm3+is increased from x = 0 to x = 0.20, the color rendering index of the Ca2NaMg2V3O12:xSm3+ phosphors increased from 55 to 83. The present white phosphors show a great potential for white LEDs.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant No. 21171152).

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Authors and Affiliations

  1. Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, 430074, People’s Republic of China

    Yujun Liang & Mingyu Liu

  2. Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, People’s Republic of China

    Yujun Liang, Mingyu Liu, Fan Yang, Xiaoyong Wu, Wenlong Yang & Xuejing Li

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  1. Yujun Liang
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  2. Mingyu Liu
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Correspondence to Yujun Liang.

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Liang, Y., Liu, M., Yang, F. et al. Preparation and Characteristics of Ca2NaMg2V3O12:Sm3+ Single-Phased White-Emitting Phosphors. J Inorg Organomet Polym 23, 684–689 (2013). https://doi.org/10.1007/s10904-013-9833-x

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  • DOI: https://doi.org/10.1007/s10904-013-9833-x

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