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- W4386024307 abstract "A series of cool white light radiating nanomaterials of Dy3+ embedded into the Ca9Y(VO4)7 host lattice have been synthesized via an energy-saving, cost-effective, and ecological solution combustion procedure and proved their utility in lighting applications with excellent optical features, high stability, and non-toxic behavior. Rietveld refinement and x-ray-diffraction profiles validated the trigonal phase with the R 3c space group of the prepared series. Energy-dispersive spectroscopy (EDS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) investigations have been utilized for elemental and morphological analysis. The existence of a strong band at 327 nm in the excitation spectrum, has confirmed the transfer of energy between VO43− → Dy3+ ions. With a 327 nm excitation wavelength, Dy3+-activated nanophosphors revealed significant peaks ascribed to emissions due to 4F9/2 → 6H13/2, 15/2 transitions. Dexter’s and the Inokuti-Hirayama (I-H) theories were employed to study the concentration quenching phenomenon. Moreover, non-radiative rates, quantum efficiency, and radiative lifetime were investigated by Auzel’s system. The colorimetric parameters including color coordinates (0.2843, 0.3243), and color temperature (8326 K), signify a cool and efficient white light radiating Ca9Y0.97Dy0.03(VO4)7 nanophosphor and hence, suggest their successful utilization in white-LEDs, and other color-emitting devices." @default.
- W4386024307 created "2023-08-22" @default.
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- W4386024307 date "2023-10-01" @default.
- W4386024307 modified "2023-10-09" @default.
- W4386024307 title "Crystal configuration and optical traits of cool white light radiating Dy3+- activated Ca9Y(VO4)7 nanomaterials for solid-state lighting applications" @default.
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- W4386024307 doi "https://doi.org/10.1016/j.inoche.2023.111255" @default.
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