| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1495767 | Optical Materials | 2010 | 6 Pages |
Abstract
Oxy-fluoride glass-ceramics offer a promising alternative as hosting of lanthanide ions, making them suitable for the fabrication of optical devices. In this study, transparent oxy-fluoride glass-ceramics doped with Tm3+ have been obtained from glasses in the system K2O–Na2O–Al2O3–SiO2–LaF3 by heat treatments slightly above the glass transition temperature, Tg. Under that treatment, NaLaF4 nano-crystals with sizes up to 30 nm precipitate. The crystallisation has been studied as a function of the heat treatment by using dilatometry, X-ray diffraction (XRD) and transmission electron microscopy (TEM) techniques. The distribution of Tm3+ between glassy matrix and fluoride nano-crystals has been analysed from photoluminescence spectra.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
A. de Pablos-Martín, M.O. Ramírez, A. Durán, L.E. Bausá, M.J. Pascual,