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• W2890590619 endingPage "184798041880064" @default.
• W2890590619 startingPage "184798041880064" @default.
• W2890590619 abstract "Mg 1.5 Al 2 O 4.5 : x% Eu 3+ (0 ≤ x ≤ 2) nanopowders were successfully synthesized via sol–gel method. The X-ray diffraction (XRD) spectrum revealed that the Mg 1.5 Al 2 O 4.5 : x% Eu 3+ matches the single phase of face-centred cubic MgAl 2 O 4 . The estimated average crystallite sizes calculated using the XRD spectra were found to be in the order of 4 nm. The estimated crystal size was confirmed by the high-resolution transmission electron microscopy. The energy dispersive X-ray spectroscopy confirmed the presence of all expected elementary composition (Mg, Al, O and Eu). The field emission gun scanning electron microscope showed that varying the Eu 3+ concentration influence the morphology of the prepared nanophosphor. The photoluminescence results showed that the host emits the violet colour at around 382 nm, which was attributed to the defects within the band gap ( E g ) of host material. The Eu 3+ -doped samples showed the emission at around 560, 580, 593, 618, 655 and 704 nm which are, respectively, attributed to the 5 D 1 → 7 F 3 , 5 D 0 → 7 F 0 , 5 D 0 → 7 F 1 , 5 D 0 → 7 F 2 , 5 D 0 → 7 F 3 and 5 D 0 → 7 F 4 characteristic transitions in Eu 3+ . The International Commission on Illumination colour chromaticity showed that the Eu 3+ doping influences the emission colour." @default.
• W2890590619 created "2018-09-27" @default.
• W2890590619 creator A5039001617 @default.
• W2890590619 creator A5039230703 @default.
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• W2890590619 date "2018-01-01" @default.
• W2890590619 modified "2023-10-18" @default.
• W2890590619 title "The effects of varying the Eu³⁺ concentration on the structural and optical properties of Mg_1.5Al₂O_4.5:<i>x</i>% Eu³⁺ (0 ≤ <i>x</i> ≤ 2) nanophosphors prepared by sol–gel method" @default.
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• W2890590619 doi "https://doi.org/10.1177/1847980418800644" @default.
• W2890590619 hasPublicationYear "2018" @default.
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