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- W4307867939 abstract "In this study Barium Lanthanum Aluminate BaLaAlO 4 and BaLaAlO 4 :xEu red phosphors were produced at different x at.% Eu concentration (x = 0,1,3,5 and 7 at.% of Eu) by combustion synthesis method and post-annealing. The X-ray diffraction (XRD) patterns shows that all samples present the orthorhombic phase (JCPDS # 44-0164). Scanning electron microscopy (SEM) shows that the grains size diminished and then increases as a function of Eu-doping concentration addition. Photoluminescence spectra of the samples, under UV excitation, show a maximum strong red emission at l em = 615 nm attributed to the 5 D 0 ® 7 F 2 Eu 3+ ion transition. The Eu-doped BaLaAlO 4 sample that present the highest luminescence intensity was with the x= 1.0 at.% of Eu doping concentration. The quenching in photoluminescence spectra was detected for the Eu doping concentrations of x= 5 and 7 at%, which was ascribed to due to dipole-quadrupole (d-q) interactions. Because the strong red emission of Eu-doped BaLaAlO 4 phosphor it could be used UV activated LEDs." @default.
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- W4307867939 date "2022-10-31" @default.
- W4307867939 modified "2023-09-27" @default.
- W4307867939 title "Luminescence Properties of Eu-Doped BaLaAlO<sub>4</sub> Phosphors for Solid State Lighting" @default.
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- W4307867939 doi "https://doi.org/10.4028/p-6b13d7" @default.
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