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Synthesis of hierarchical zinc oxide nanotubes

Published online by Cambridge University Press:  31 January 2011

Hansoo Kim  and
Wolfgang M. Sigmund
Hansoo Kim
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
Wolfgang M. Sigmund
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
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Abstract

In this paper, we report on the synthesis and structure of hierarchical zinc oxide nanotubes. Hierarchical nanotubes grown by physical vaporization of zinc in the presence of a catalyst were decorated with many secondary zinc oxide nanorods on the outer surface. The axis of these nanotubes with an average diameter of 65 nm was aligned along the c axis of wurtzite zinc oxide. The hierarchical zinc oxide nanotubes, many of which were single crystals, were transparent or opaque, depending on whether they had a zinc layer inside. The opaque nanotubes showed an abrupt change in electronic transmittance during investigation with transmission electron microscopy. The unique structure of the hierarchical ZnO nanotubes and the quantum effect resulting from the reduced dimension will modify the original properties of ZnO, leading to novel applications.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 12 , December 2003 , pp. 2845 - 2850
Copyright
Copyright © Materials Research Society 2003

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