Abstract
In this work we present laser-excited infrared photoluminescence and Raman spectra of zirconia with different yttria content (2%–9.5% Y 2O 3) in order to investigate the effect of dopant on their optical properties. All the Raman spectra were taken over the range 100–800 cm −1, and the Ar + laser-excited luminescence over the range 16,000–19,000 cm −1 (absolute frequency). The results are discussed on the basis of defects related to anion vacancies and changes in the disorder degree induced mainly by yttria content in the samples.
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