期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 357, 期 19-20, 页码 3424-3429出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2011.06.011
关键词
Dy3+/Tb3+ co-doped aluminoborate glass; Luminescence; Energy transfer; Fluorescence decay lifetime
资金
- Foundation of Chinese Overseas Returned Personnel [2006-331]
- Nano-Project of Guangzhou City, People's Republic of China [2007Z3-D2041]
The new calcium aluminoborate glasses with the composition of CaO-Al2O3-B2O3-RE2O3 (RE = Dy and Tb) were synthesized and the luminescence of Dy3+ and Tb3+ was investigated. The results show that the emission intensity of Tb3+ ion was enhanced when introducing Dy3+ ion into CaO-Al2O3-B2O3-Tb2O3 glass due to the energy transfer processes between Dy3+ and Tb3+. The energy transfer efficiencies, transfer probabilities as well as donor-acceptor critical distances were also calculated. The energy transfer mechanism between Dy3+ and Tb3+ ions is electric dipole-dipole interaction, which can be concluded by both fluorescence decay and emission intensity ratio varieties. (C) 2011 Elsevier B.V. All rights reserved.
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