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- W4295957526 abstract "Alumino tungsten borate (AlWB) glasses doped with Dy 3+ ions are prepared by melt-quenching method and characterized using spectroscopic techniques such as optical absorption, photoluminescence, and decay spectral studies to comprehend the importance in photonic devices, visible solid lasers, and other applications. The CIE Chromaticity coordinates are evaluated from the emission spectra of the as-prepared glasses are brought about white light emission. Therefore, based on the acquired data from the as-prepared glasses are suitable for photonic devices such as white LED’s and lasers applications. Alumino tungsten borate (AlWB) glasses doped with dysprosium ions are prepared by melt-quenching method and characterized using spectroscopic techniques such as optical absorption, photoluminescence (PL), and decay spectral studies to comprehend the importance in photonic devices, visible solid state lasers, and other applications. The amorphous nature of the as-prepared glasses were confirmed by XRD studies. The oscillator strengths are measured by using absorption spectra are intern used to evaluate the Judd-Ofelt (Ω 2, Ω 4, and Ω 6 ) parameters. The PL spectra of the as-prepared glasses manifested three significant emission bands at 483 nm (blue), 575 nm (yellow) and 664 nm (red), and their corresponding electronic transitions are identified from 4 F 9/2 to 6 H 15/2, 6 H 13/2 and 6 H 11/2 respectively. Various radiative parameters such as branch ratio (β R ), transition probability (A R ), radiative lifetime (τ R ), effective bandwidth (Δλp), and stimulated emission cross-section (σ se ) have been calculated. The CIE Chromaticity coordinates evaluated from the emission spectra of Dy-doped AlWB glasses reveal white light emission. Quantum efficiency values are evaluated by correlating the radiative lifetime with the experimental lifetime values measured from the PL decay spectral features. The data acquired from the as-prepared glasses allows us to contemplate that, the titled glasses are suitable to fabricate photonic devices. such as white LED’s and lasers." @default.
- W4295957526 created "2022-09-16" @default.
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- W4295957526 date "2022-11-01" @default.
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- W4295957526 title "Optical and spectroscopic studies of Dy3+ ions doped Alumino tungsten borate glasses for w-LEDs applications" @default.
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- W4295957526 doi "https://doi.org/10.1016/j.poly.2022.116137" @default.
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