期刊
OPTICAL MATERIALS
卷 31, 期 1, 页码 87-93出版社
ELSEVIER
DOI: 10.1016/j.optmat.2008.01.015
关键词
glass ceramic; nanocrystalline glasses; oxyfluoroborate glass; Eu3+ ion; Judd-Ofelt analysis
资金
- DST
- UGC, New Delhi
Optical properties of Eu3+ doped oxyfluoroborate glasses containing different concentrations of BaF2 have been studied. The emission is found to be maximum at 20 mol% of BaF2. Transparent oxyfluoroborate glass ceramic with 15-20% volume fraction of fluoride nano-crystals are prepared from the Eu3+ doped glass using heat treatment and the optical properties of Eu3+ ions in such a glass ceramic have been studied and compared with those of the original glasses. Luminescence and absorption measurements reveal higher cross-sections in the glass ceramic. Addition of Bi2O3 during glass formation, with a fixed concentration of BaF2 content, increases the stability of the glass and heat treatment of such a glass leads to increase in its luminescence intensity. (C) 2008 Elsevier B.V. All rights reserved.
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