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Title: Fabrication and comprehensive structural and spectroscopic properties of Er:Y₂O₃ transparent ceramics
Authors: Xue, Yanling
Zhu, Feng
Wang, Jun
Sun, Shiyu
Hu, Lili
Tang, Dingyuan
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: Xue, Y., Zhu, F., Wang, J., Sun, S., Hu, L. & Tang, D. (2021). Fabrication and comprehensive structural and spectroscopic properties of Er:Y₂O₃ transparent ceramics. Journal of Rare Earths.
Journal: Journal of Rare Earths
Abstract: Transparent Er:Y2O3 ceramics with sub-micron grain size (<1 μm) were fabricated by using one-step vacuum sintering followed by hot isostatic pressing (HIPing) technique. The transmission of the undoped Y2O3 reaches 83%. The structural characteristics including the phonon energy were investigated through X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) analysis and scanning electron microscopy (SEM) measurement. The overall spectroscopic properties of transmission, fluorescence emission up to 3000 nm, lifetime, up-conversion luminescence, and refractive index were systematically studied for both 0.25 at% and 7.0 at% Er:Y2O3 ceramics with different thicknesses. The comparison of the spectra of the fluorescence emission and up-conversion luminescence under both 976 and 808 nm laser excitation was performed. The multiple high-energy-state transitional processes after the excited state absorption (ESA) processes involved in the up-conversion are discriminated between the multi-phonon non-radiative transitions and the radiative transitions according to the measured maximum phonon vibrational energy. The calculation was performed based on the Judd–Ofelt theory.
ISSN: 1002-0721
DOI: 10.1016/j.jre.2021.12.003
Schools: School of Electrical and Electronic Engineering 
Rights: © 2021 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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