Abstract
The Ba2Ca(PO4)2:Eu3+ phosphors that were co-doped in the alkali metal ions A+ (A+ = Li, Na and K) to improve their luminescence property were synthesized by wet chemical method. X-ray diffraction confirmed the phase formation. When excited at 394 nm wavelength, the Ba2Ca(PO4)2:Eu3+ phosphor showed an emission peak at 591 and 615 nm. The intensity of the Ba2Ca(PO4)2:Eu3+ phosphor emission could reach a maximum of 0.5 mol % and then concentration quenching occurs. The emission intensity can be increased by introducing compensator charge A+ (A+ = Li, Na and K) into the Ba2Ca(PO4)2:Eu3+ phosphor. In contrast, all three charge compensators may improve luminescence emission intensity, among these charge compensating ions Li+ being the most effective. The chromaticity coordinates of the Ba2Ca(PO4)2:Eu3+, Li+ phosphor were (x = 0.680, y = 0.319) according to the CIE. The findings indicate that Ba2Ca(PO4)2:Eu3+, A+ (A+ = Li, Na and K) phosphors with excellent photoluminescence properties will be used as a component in near-ultraviolet exciting solid state lighting.
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Acknowledgements
Mr. Chandrahasya M. Nandanwar is thankful for financial support from the Mahajyoti fellowship, Nagpur (MH), India, (Outward No. MAHAJYOTI/Nag./Fellowship/2021-22/1042(142) Dated 17/01/2022).
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This work was supported by the Mahajyoti fellowship, Nagpur (MH), India, (Outward No. MAHAJYOTI/Nag./Fellowship/2021-22/1042(142)).
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Nandanwar, C.M., Yerpude, A.N., Kokode, N.S. et al. Effect of charge compensators A+ (A+ = Li, Na and K) on photoluminescence properties of Ba2Ca(PO4)2:Eu3+ phosphor for solid state lighting. J Mater Sci: Mater Electron 34, 1464 (2023). https://doi.org/10.1007/s10854-023-10889-7
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DOI: https://doi.org/10.1007/s10854-023-10889-7