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Photoluminescence of Eu3+:Y2O3 Nanoclusters Embedded in SiO2 Glass

Published online by Cambridge University Press:  10 February 2011

Weiyi Jia ,
Yanyun Wang ,
Miguel Santiago ,
Limari Castro ,
Huimin Liu ,
B. Claflin  and
G. Lucovsky
Weiyi Jia
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez, PR 00681
Yanyun Wang
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez, PR 00681
Miguel Santiago
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez, PR 00681
Limari Castro
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez, PR 00681
Huimin Liu
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez, PR 00681
B. Claflin
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez, PR 00681
G. Lucovsky
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez, PR 00681
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Abstract

Eu3+(1at%) doped and Eu3+"(1at%), Y3+(10at%) codoped SiO2 glasses were prepared by sol-gel technology. Dominant red emission at 615 nm from 5D0to 7F2of Eu3+ was observed from both samples annealed above 800 °C. The intensity of luminescence of Eu, Y codoped samples is three times stronger than that of Eu doped samples. The lifetime of the former is two times longer than the latter. An analysis indicates that in the sample of Eu, Y codoped SiO2 glass, Eu3+ ions stay in the Y2O3 nanoclusters, which were formed during the annealing process and embedded in SiO2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 519: Symposium O – Organic/Inorganic Hybrid Materials , 1998 , 271
Copyright
Copyright © Materials Research Society 1998

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