Journal
INORGANIC MATERIALS
Volume 40, Issue 8, Pages 840-844Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1023/B:INMA.0000037930.59049.0b
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The diffuse reflectance and luminescence spectra of Y2O2S:Er3+ and Y2O3:Er3+ are studied under selective and polarized laser excitation. The results indicate that the Er3+ luminescence bands of yttrium oxysulfide in the 1.54-mum region are one order of magnitude stronger and broader than those of yttria. Y2O2S:Er3(+) is shown to contain two types of Er-related emission centers differing in the anion environment of the Er3+ ion.
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