Correlation between emission property and concentration of Sn2+ center in the SnO-ZnO-P2O5 glass

The authors report on the correlation between the photoluminescence (PL) property and the SnO amount in SnO-ZnO-P2O5 (SZP) glass. In the PL excitation (PLE) spectra of the SZP glass containing Sn2+ emission center, two S1 states, one of which is strongly affected by SnO amount, are assumed to exist....

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Bibliographic Details
Published in:Optics express 2012-12, Vol.20 (25), p.27319-27326
Main Authors: Masai, Hirokazu, Tanimoto, Toshiro, Fujiwara, Takumi, Matsumoto, Syuji, Tokuda, Yomei, Yoko, Toshinobu
Format: Article
Language:English
Subjects:
Glass - chemistry
Lighting - instrumentation
Lighting - methods
Models, Theoretical
Optical Devices
Phosphorus Compounds - chemistry
Quantum Theory
Temperature
Tin - chemistry
Tin Compounds - chemistry
Zinc Oxide - chemistry
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Summary:The authors report on the correlation between the photoluminescence (PL) property and the SnO amount in SnO-ZnO-P2O5 (SZP) glass. In the PL excitation (PLE) spectra of the SZP glass containing Sn2+ emission center, two S1 states, one of which is strongly affected by SnO amount, are assumed to exist. The PLE band closely correlates with the optical band edge originating from Sn2+ species, and they both largely red-shifts with increasing amount of SnO. The emission decay time of the SZP glass decreased with increasing amount of SnO and the internal quantum efficiencies of the SZP glasses containing 1~5 mol% of SnO are comparable to that of MgWO4. It is expected that the composition-dependent S1 state (the lower energy excitation band) governs the quantum efficiency of the SZP glasses.
ISSN:1094-4087
DOI:10.1364/OE.20.027319