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

被引:23
作者
de Pablos-Martin, A. [1 ,3 ]
Garcia, M. A. [1 ]
Munoz-Noval, A. [2 ]
Castro, G. R. [2 ]
Pascual, M. J. [1 ]
Duran, A. [1 ]
机构
[1] CSIC, Inst Ceram & Vidrio, Madrid 28049, Spain
[2] Spanish CRG Beamline ESRF, Inst Ciencia Mat Madrid SpLine, F-38043 Grenoble 09, France
[3] Fraunhofer Inst Mech Mat IWM, D-06120 Halle, Germany
关键词
X-ray absorption spectroscopy; Oxyfluoride glass-ceramics; Fluoride crystals; Rare earths; COORDINATION ENVIRONMENTS; FLUORIDE; NANOCRYSTALS; YB3+; NMR; XAS;
D O I
10.1016/j.jnoncrysol.2013.07.021
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Incorporation 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. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:83 / 87
页数:5
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