Strong visible up-conversion emission in Tb3+, Tm3+ and Tb3+-Tm3+ co-doped tellurite glasses sensitized by Yb3+.
Substance Nomenclature: | 0 (Ions) 06SSF7P179 (Terbium) 8RKC5ATI4P (Thulium) IVA6SGP6QM (tellurous acid) MNQ4O4WSI1 (Ytterbium) NQA0O090ZJ (Tellurium) |
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Entry Date(s): | Date Created: 20061118 Date Completed: 20070802 Latest Revision: 20131121 |
Update Code: | 20231215 |
DOI: | 10.1016/j.saa.2006.09.023 |
PMID: | 17110158 |
Autor: | Wang X; Shanghai Institute of Optics & Fine Mechanics, CAS, Shanghai 201800, China. xunsiwang@siom.ac.cn, Liu L, Nie Q, Xu T, Shen X, Dai S, Zhang X |
Jazyk: | angličtina |
Zdroj: | Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2007 Jul; Vol. 67 (3-4), pp. 1025-9. Date of Electronic Publication: 2006 Sep 24. |
DOI: | 10.1016/j.saa.2006.09.023 |
Abstrakt: | Up-conversion luminescence characteristics under 975 nm excitation have been investigated with Tb3+/Tm3+/Yb3+ triply doped tellurite glasses. Here, green (547 nm: (5)D(4)-->(7)F(4)) and red (660 nm: (5)D(4)-->(7)F(2)) up-conversion (UC) luminescence originating from Tb3+ is observed strongly, because of the quadratic dependences of emission intensities on the excitation power. Especially, the UC luminescence was intensified violently with the energy transfer from the Tm3+ ions involves in the Tb3+ excitation. To the Tb3+/Tm3+/Yb3+ triply doped glass system, a novel up-conversion mechanism is proposed as follows: the energy of (3)G(4) level (Tm3+) was transferred to (5)D(4) (Tb(3+)) and the 477-nm UC luminescence of Tm3+ was nearly quenched. |
Databáze: | MEDLINE |
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