Abstract
Sm3+-doped Sc2O3 translucent polycrystalline ceramics were fabricated by solid-state reaction method in order to evaluate its potential for visible emission. The optical spectra in the UV–IR range of Sm3+ in these samples, at different temperatures (10–300K), were performed. A series of data on Sm: Sc2O3 system not investigated previously were obtained from the analysis of the absorption and visible emission spectra as well as the emission kinetics: an extended energy level scheme, absorption cross sections for different bands, lifetimes, etc. Additional spectroscopic parameters were evaluated in the frame of the Judd–Ofelt (J–O) theory: J–O intensity parameters, oscillator strengths, radiative transitions probabilities, radiative lifetimes, branching ratios, and the cross sections (by Füchtbauer–Ladenburg) of the main three visible emissions: 4G5/2→6H5/2 (yellow), 4G5/2→6H7/2 (orange) and 4G5/2→6H9/2 (red).
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