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Synthesis and Characterization of Doped and Undoped ZnO Nanostructures

Published online by Cambridge University Press:  14 July 2006

Katie E. McBean ,
Matthew R. Phillips  and
Ewa M. Goldys
Katie E. McBean
Affiliation:
Microstructural Analysis Unit, University of Technology, Sydney, P.O. Box 123, Broadway NSW, 2007 Australia
Matthew R. Phillips
Affiliation:
Microstructural Analysis Unit, University of Technology, Sydney, P.O. Box 123, Broadway NSW, 2007 Australia
Ewa M. Goldys
Affiliation:
Division of Information and Communication Sciences, Macquarie University, North Ryde, 2109 Australia
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Abstract

Zinc oxide (ZnO) nanoparticles have been produced using precipitation methods from ethanolic solution. Rare-earth metal doping was performed, and the effect of lithium codoping on the luminescence properties of the rare-earth doped products was assessed. The resulting particles were characterized using cathodoluminescence and scanning electron microscopy. It was found that lithium significantly enhanced the cathodoluminescence signal from the rare-earth ions, which has been attributed to the increased integration of the rare-earth ions into the ZnO structure. The nanophase ZnO products were also annealed in argon, hydrogen, and oxygen, with hydrogen being the most successful for removing the broad defect emission present in as-grown samples and enhancing the ZnO near band edge emission.

Keywords

zinc oxidecathodoluminescencerare-earth metaldopingannealing
Type
MODERN DEVELOPMENTS AND APPLICATIONS IN MICROBEAM ANALYSIS
Information
Microscopy and Microanalysis , Volume 12 , Issue 4 , August 2006 , pp. 327 - 330
Copyright
© 2006 Microscopy Society of America

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References

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