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• W4386221824 abstract "Abstract KAlSiO 4 :Eu 3+ , Tb 3+ phosphor synthesized first time by simple combustion method. The X-ray diffraction (XRD) study confirms that the KAlSiO 4 phosphor matrix successfully matches to standard JCPDS database file. Photoluminescence properties observed for rare earth Eu 3+ , Tb 3+ at various concentration (x = 0.3, 0.5, 1.0, 1.3 mole %) shows an optimistic luminescence property. KAlSiO 4 matrix shows unique emissions of Eu 2+ and Eu 3+ ions when excited by 395 nm, where the utmost emission intensity was received when x = 1.0 mole%. The excitation spectra of KAlSiO 4 :Eu 3+ give proper peak position at 262 nm, 395 nm, and 465 nm corresponding to O 2+ → Eu 3+ , 7 F 0 → 5 L 6 , 7 F 0 → 5 D 2 . While sharp emissions peaked at 593 nm and 613 nm are obtained by 7 F 0 → 5 D 1 and 7 F 0 → 5 D 2 transitions. On the other hand, KAlSiO 4 :Tb 3+ shows the excitation peak position at 352 nm,370 nm, and 378 nm which gives the sharp green emission peak at 545 nm due to the 5 D 4 → 5 F 5 transitions. The particle size and elemental constitution determine using SEM-EDX analysis which is in the range of micrometers in size. The band gap and refractive index are determined using UV-visible spectroscopy. CIE chromaticity coordinate shows multicolor emission for KAlSiO 4 :Eu 3+ while the green color emission for the KAlSiO 4 :Tb 3+ phosphor. Photoluminescence (Pl) spectroscopy reveals the exciting luminescent properties of the KAlSiO4:Eu 3+ , Tb 3+ phosphor which may be applicable potential phosphor for fabrication of various light emitting devices." @default.
• W4386221824 created "2023-08-29" @default.
• W4386221824 creator A5010288782 @default.
• W4386221824 creator A5090600481 @default.
• W4386221824 date "2023-08-28" @default.
• W4386221824 modified "2023-09-30" @default.
• W4386221824 title "Study synthetic method, photoluminescence mechanism and optimistic applications of KAlSiO 4 Phosphor" @default.
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• W4386221824 doi "https://doi.org/10.21203/rs.3.rs-3283326/v1" @default.
• W4386221824 hasPublicationYear "2023" @default.
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