Abstract
The wet chemical synthesis was used to make a series of Sr3La(PO4)3:Eu3+ phosphors. X-ray diffraction (XRD), morphology, photoluminescence characteristics and chromaticity were thoroughly investigated. The X-ray diffraction was used to confirm the cubic phase with the space group I − 4 3 d (220). The Sr3La(PO4)3:Eu3+ phosphors show a strong excitation peak at 394 nm. Upon 394 nm excitation, two emission peaks were observed at 594 nm (orange) and 615 nm (red), which corresponding to the transitions 5D0 → 7F1 and 5D0 → 7F2 of Eu3+ ions, respectively. The concentration quenching occurred at 0.5 mol % of Eu3+ ions. The chromaticity coordinates of wavelength 594 nm are (x = 0.597, y = 0.401), and wavelength 615 nm is (x = 0.680, y = 0.319). The Sr3La(PO4)3:Eu3+ phosphors are a series of candidate phosphors for near-UV-based solid-state lighting.
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Acknowledgements
Author Mr. Chandrahasya M. Nandanwar is thankful for financial support from the MJPRF-2021, Nagpur (MH), India, fellowship (Outward No. MAHAJYOTI/Nag./Fellowship/2021-22/1042(142) Dated 17/01/2022).
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Nandanwar, C.M., Kokode, N.S., Yerojwar, R.M. et al. Wet chemical synthesis and photoluminescence study of Eu3+ activated orthophosphate-based phosphor for n-UV-based solid-state lighting. J Opt 53, 70–75 (2024). https://doi.org/10.1007/s12596-023-01130-z
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DOI: https://doi.org/10.1007/s12596-023-01130-z