Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5403338 | Journal of Luminescence | 2007 | 6 Pages |
Abstract
The fluorescence property of xTbF3-BaF2-AlF3-GeO2+ySmF3 (x=0.01-40Â mol%, y=0-5Â wt%) glasses were investigated. The enhancement of Sm3+ fluorescence was recognized in the presence of Tb3+. Increasing Tb3+ content, the emission color changed from green to orange. When the intensity of fluorescence at 540Â nm originated from Tb3+ is compared with that at 600Â nm originated from Sm3+, the information about the concentration quenching of Tb3+ and Sm3+ was obtained. From these results, rare earth ions were dispersed identically in the glasses. After heating to 673Â K or cooling to 77Â K, the emission color of 20TbF3-20BaF2-10AlF3-50GeO2/mol%+0.05Â wt% SmF3 glass was reversibly changed from orange to green. In addition, while the emission from 10TbF3-20BaF2-10AlF3-60GeO2+0.01Â wt% SmF3 glass was green, its crystallized sample, prepared by annealing at 1073Â K, exhibited an orange emission due to Sm3+ at room temperature.
Related Topics
Physical Sciences and Engineering
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Authors
S. Nishibu, T. Nishio, S. Yonezawa, M. Takashima,