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Luminescence properties of Eu3+:Y2O3 and Eu3+:Lu2O3 nanoparticles, ceramics and thin films

Published online by Cambridge University Press:  01 February 2011

Kai Zhang ,
D. Hunter ,
S. Mohanty ,
J. B. Dadson ,
Y. Barnakov  and
A. K. Pradhan
Kai Zhang
Affiliation:
Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, VA 23504
D. Hunter
Affiliation:
Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, VA 23504
S. Mohanty
Affiliation:
Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, VA 23504
J. B. Dadson
Affiliation:
Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, VA 23504
Y. Barnakov
Affiliation:
Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, VA 23504
A. K. Pradhan
Affiliation:
Center for Materials Research, Norfolk State University, 700 Park Avenue, Norfolk, VA 23504
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Abstract

Eu3+ doped Y2O3 and Lu2O3 nanocrystalline powders were synthesized via combustion technique using urea as a fuel and the metal nitrates as oxidants. The compacted nanopowders were vacuum sintered in order to form the translucent ceramics. A significant enhancement of emission characteristics was observed from the ceramics synthesized from the nanoparticles by controlling the vacuum-sintering conditions. Although the processed ceramics display superior emission characteristics, the nanocrystalline phosphor powders also display reasonably good emission characteristics. Highly epitaxial Y2O3:Eu3+ and Lu2O3:Eu3+ films were deposited on various substrates under different growth and optimization conditions using pulsed-laser deposition technique using high-density translucent ceramic target. Superior spectroscopic performance was obtained on films grown on sapphire substrates due to high-quality and epitaxial nature of the film.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 846: Symposium DD – Organic and Nanocomposite Optical Materials , 2004 , DD9.1
Copyright
Copyright © Materials Research Society 2005

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References

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