Journal
JOURNAL OF LUMINESCENCE
Volume 132, Issue 5, Pages 1166-1170Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2011.12.080
Keywords
Sodium fluoro-borate glass; Judd-Ofelt theory; Photoluminescence; Resonant energy transfer
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Funding
- Changwon National University
- National Research Foundation of Korea [핵06B2813] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report the optical absorption, photoluminescence and fluorescence decay properties of Tb3+-doped sodium fluoro-borate (SFB) glasses. Different concentrations of Tb3+-doped SFB glasses were prepared by conventional melt quenching technique using a chemical composition (in mol%) 25Na(2)O-5LaF(3)-10CaF(2)-10AlF(3)-(50-x) B2O3-x TbF3 (0.01 <= x >= 4). The Judd-Ofelt model has been adopted to determine the radiative parameters of the D-5(4)-> F-7(6-3) emission transitions. The effect of Tb3+ ion concentration on the emission from the D-5(3,4) excited levels is discussed in detail. The analysis of optimization of Tb3+ ion concentration for efficient green color display devises is reported. The resonance energy transfer mechanism responsible for non-radiative decay rates is clearly explored. (C) 2012 Elsevier B.V. All rights reserved.
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