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Synthesis and Laser Spectroscopy of Monoclinic Eu3+: Y2O3 Nanocrystals

Published online by Cambridge University Press:  10 February 2011

Bipin Bihari  and
Brian M. Tissue
Bipin Bihari
Affiliation:
Department of Chemistry, Virginia Polytechnic Institute and State University Blacksburg, VA 24061–0212
Brian M. Tissue
Affiliation:
Department of Chemistry, Virginia Polytechnic Institute and State University Blacksburg, VA 24061–0212
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Abstract

Gas-phase condensation of CO2 laser-heated EU3+:Y2O3 ceramics produces monoclinic-phase nanocrystalline material. Transmission electron microscopy shows particle diameters in the range 7–30 nm for particles quenched at 60 °C under 400 Torr of nitrogen atmosphere. The optical spectra of nanocrystals produced from 0.1% Eu3+:Y2O3 starting material have narrow lines, and the 5D0 lifetimes are 1.8, 1.2 and, 1.3 ms for the three Eu3+ cation sites. Nanocrystals obtained from 0.7 –5 % Eu3+:Y2O3 starting material show line broadening and the presence of Eu2O3 secondary phase.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 457: Symposium V – Nanophase and Nanocomposite Materials II , 1996 , 105
Copyright
Copyright © Materials Research Society 1997

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References

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