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- W4292246174 abstract "The fabrication and luminescent properties of novel Na2YMg2V3O12:Eu3+ phosphors, obtained by a conventional solid-state reaction, were investigated. The self-activated emission of the Na2YMg2V3O12 host exhibits a broad emission band ranging from 400 to 700 nm with a maximum peak at 530 nm, ascribed to the d-d transition (3T2, 3T1 → 1A1) of V5+ ions in the (VO4)3− groups. On excitation with near-UV (365 nm) light, the Na2YMg2V3O12:Eu3+ phosphors emit bright red light, including both the broad emission band of the (VO4)3− groups and the sharp emission peaks of Eu3+ ions. At a quenching concentration of 0.20 mol, the Eu3+ ion emission peaks were located at 597, 613, 654 and 710 nm. The thermal stability of the as-prepared Na2YMg2V3O12:Eu3+ phosphor was studied and the thermal quenching activation energy (△E) was calculated to be 0.33 eV. Furthermore, a designed and packaged white-light-emitting diode (WLED) lamp, fabricated with the obtained phosphors, commercial (Ba, Sr)2SiO4:Eu2+ green phosphors, BaMgAl10O17:Eu2+ blue phosphors and a near-ultraviolet (n-UV) chip, emitted bright white light with a CIE coordinate of (0.3068, 0.3491), CRI of 88.20 and CCT of 4460 K. These results indicate the potential of the as-prepared Na2YMg2V3O12:Eu3+ phosphor as a red-emitting phosphor for solid-state illumination." @default.
- W4292246174 created "2022-08-19" @default.
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- W4292246174 date "2022-11-01" @default.
- W4292246174 modified "2023-10-16" @default.
- W4292246174 title "Synthesis and photoluminescence properties of Eu3+-doped Na2YMg2V3O12: A novel red-emitting phosphor for WLEDs" @default.
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- W4292246174 doi "https://doi.org/10.1016/j.poly.2022.116087" @default.
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