Sb<SUP>3+</SUP>对Tb<SUP>3+</SUP>激活硅酸盐玻璃发光性能的影响

doi:10.3964/j.issn.1000-0593.2008.04.005

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Abstract The Sb³⁺-doped silicate glasses, Tb³⁺-doped silicate glasses, and Sb³⁺ and Tb³⁺ co-doped silicate glasses were synthesized by high-temperature melting method, and their spectral properties were analyzed. The effects of Sb₂O₃ added as a fining agent on the luminescent properties of Tb³⁺-doped silicate glasses were studied with excitation spectra, emission spectra and decay time. The results show that there is energy transfer from Sb³⁺ ions to Tb³⁺ ions in the Sb³⁺ and Tb³⁺ co-doped silicate glasses under UV excitation, but the energy transfer efficiency between them is quite low. The energy transfer takes place between the ³P₁ energy level of Sb³⁺ ions and the ⁵D₃ energy level of Tb³⁺ ions in the Sb³⁺ and Tb³⁺ co-doped silicate glasses, and the way of the energy transfer from Sb³⁺ ions to Tb³⁺ ions is nonradiative energy resonance transfer. Meanwhile, introducing Sb₂O₃ used as a fining agent will reduce the excitation intensity of Tb³⁺ ions in the silicate glasses in the overlap excitation region of both Sb³⁺ ions and Tb³⁺ ions, which corresponds to the region from 200 to 350 nm. The reduction in the excitation intensity of Tb³⁺ ions caused by introducing Sb³⁺ ions is so evident that it can not be compensated by the energy transfer from Sb³⁺ ions to Tb³⁺ ions. Therefore, the negative effects of Sb³⁺ ions on the luminescent properties of Tb³⁺ ions in silicate glasses should be measured when Sb₂O₃ is planned to be used as a fining agent in Tb³⁺-doped silicate glasses.

Key words：Sb³⁺ ion;Tb³⁺ doped silicate glass;Luminescent property

Received: 2007-10-06 Accepted: 2007-12-28

ZTFLH:

TQ171

Corresponding Authors: GU Mu E-mail: mgu@mail.tongji.edu.cn

Cite this article:

ZHANG Jun-cheng,GU Mu,HUANG Shi-ming, et al. Effects of Sb³⁺ on the Luminescent Properties of Tb³⁺ Doped Silicate Glass[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(04): 755-759.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593.2008.04.005 OR https://www.gpxygpfx.com/EN/Y2008/V28/I04/755

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