Abstract—
Emission spectra of Y2O2S:Er (1 at %) ceramics and decay times of their visible photoluminescence have been studied at different pulsed IR excitation wavelengths. The results demonstrate that the visible anti-Stokes luminescence of the erbium-doped material is due to isolated Er3+ ions or complexes of erbium ions. We have obtained characteristic emission centers of the complexes and isolated erbium centers. A method has been proposed for selective delayed luminescence measurements in order to separate the contributions of various erbium centers to anti-Stokes emission of Y2O2S:Er.
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This work was supported by the Russian Federation Ministry of Science and Higher Education, state research target no. 075-00706-22-00.
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Gruzintsev, A.N. Effect of Erbium Complexes on the Anti-Stokes Luminescence of Y2O2S:Er Ceramics. Inorg Mater 59, 410–416 (2023). https://doi.org/10.1134/S0020168523040015
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DOI: https://doi.org/10.1134/S0020168523040015