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The Challenge for Large-scale Vapor-phase Growths of Not-catalyzed ZnO Nanostructures: Purity vs. Yield

Published online by Cambridge University Press:  31 January 2011

Davide Calestani ,
Ming Zheng Zha ,
Roberto Mosca ,
Laura Lazzarini ,
Giancarlo Salviati ,
Andrea Zappettini  and
Lucio Zanotti
Davide Calestani
Affiliation:
[email protected], IMEM-CNR, Parma, Italy
Ming Zheng Zha
Affiliation:
[email protected], IMEM-CNR, Parma, Italy
Roberto Mosca
Affiliation:
[email protected], IMEM-CNR, Parma, Italy
Laura Lazzarini
Affiliation:
[email protected], IMEM-CNR, Parma, Italy
Giancarlo Salviati
Affiliation:
[email protected], IMEM-CNR, Parma, Italy
Andrea Zappettini
Affiliation:
[email protected], IMEM-CNR, Parma, Italy
Lucio Zanotti
Affiliation:
[email protected], IMEM-CNR, Parma, Italy
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Abstract

Large-scale growth capability is a general requirement for any reliable and cost-effective device application. Catalyst-free vapor-phase growth techniques generally let obtain high purity materials, but their application in large-scale growths of zinc oxide (ZnO) nanostructures is not trivial, because the lack of catalysts makes the control of these process rather difficult. Three different optimizations of the basic vapor phase growth have been studied and performed to obtain selected and reproducible growths of three different ZnO nanostructures with improved yield, i.e. nanotetrapods, nanowires and nanorods. No precursor or catalyst has been used in order to reduce contamination sources as more as possible.

Keywords

nanostructureoxidecrystal growth
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1174: Symposium V – Functional Metal-Oxide Nanostructures , 2009 , 1174-V05-02
Copyright
Copyright © Materials Research Society 2009

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