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Photoluminescence properties of Eu3+/ Sm3+ activated CaZr4(PO4)6 phosphors

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Abstract

Solid state reaction method was employed for the synthesis of a series of CaZr4(PO4)6: Eu3+/Sm3+ phosphors. The red-emitting CaZr4(PO4)6:Eu3+ phosphors can be efficiently excited at 396 nm and thereby, exhibit a strong red luminescence predominantly corresponding to the electric dipole transition at 615 nm. Under 405 nm excitation, CaZr4(PO4)6:Sm3+ phosphors display orange emission with color temperatures approximately around 2200 K. The acquired results reveal that CaZr4(PO4)6: RE3+ (RE = Eu, Sm) phosphors could be potential candidates for red and orange emitting phosphor, respectively, for UV/blue-pump LEDs.

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Acknowledgments

One of the authors [GBN] acknowledges the Department of Science and Technology (DST), New Delhi, INDIA for financial assistance under INSPIRE Fellowship programme with registration number IF150675.

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  1. Department of Physics, R.T.M. Nagpur University, Nagpur, 440033, India

    Govind B. Nair & S. J. Dhoble

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  1. Govind B. Nair
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Correspondence to S. J. Dhoble.

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Nair, G.B., Dhoble, S.J. Photoluminescence properties of Eu3+/ Sm3+ activated CaZr4(PO4)6 phosphors. J Fluoresc 26, 1865–1873 (2016). https://doi.org/10.1007/s10895-016-1880-6

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