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Analysis of the distribution of Tm3+ ions in LaF3 containing transparent glass-ceramics through X-ray absorption spectroscopy

AuthorsPablos Martín, Araceli de ; García García-Tuñón, Miguel Ángel ; Muñoz-Noval, A. ; Castro, Germán R. ; Pascual, M. Jesús ; Durán, Alicia
KeywordsFluoride crystals
Oxyfluoride glass-ceramics
X-ray absorption spectroscopy
Rare earths
Issue Date2014
CitationJournal of Non-Crystalline Solids 384: 83-87 (2014)
AbstractIncorporation of rare-earth (RE) ions in the fluoride crystals of oxyfluoride glass-ceramics greatly improves the optical properties of these materials, such as the up-conversion emission. In this work, we present a study of this incorporation using X-ray absorption near-edge structure (XANES) spectroscopy and extended X-ray absorption fine structure (EXAFS) spectroscopy. Both techniques allow quantifying the distribution of these ions in the glass matrix and the fluoride crystals. We found that 27% of Tm3 + ions are incorporated in LaF3 nano-crystals. © 2013 Elsevier B.V.
Identifiersdoi: 10.1016/j.jnoncrysol.2013.07.021
issn: 0022-3093
e-issn: 1873-4812
Appears in Collections:(ICMM) Artículos
(ICV) Artículos
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