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Luminescence properties of Er3+ ions in nanocrystalline glass-ceramics

AuthorsBalda, Rolindes ; Miguel, A.; Morea, Roberta ; Gonzalo, J. ; Fernández, Joaquín
Issue Date13-Jul-2016
CitationICTON (2016)
AbstractThe influence of the nanocrystallization process on the luminescence properties of Er3+ ions in transparent oxyfluoride tellurite glass-ceramics obtained by heat treatment of the precursor Er-doped glass is analyzed. The comparison between the fluorescence properties of Er-doped glass and glass-ceramics suggests that a fraction of Er3+ ions are forming nanocrystals while the rest remain in a glass environment. The presence of fluoride nanocrystals has a strong effect in the upconverted red emission from 4F9/2 level. This emission increases significantly as compared with the green one in the glass-ceramic sample. The time evolution of the upconverted red emission shows that energy transfer upconversion processes are responsible for the increase of this emission in the glass-ceramic samples.
DescriptionConferencia invitada; International Conference on Transparent Optical Networks ICTON, University of Trento, Trento, Italy, July 10-14, 2016 ; https://icton2016.fbk.eu/
Appears in Collections:(CFMAC-IO) Comunicaciones congresos
(CFM) Comunicaciones congresos
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