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Evolution of ZnO nanowires, nanorods, and nanosheets with an oxygen-assisted carbothermal reduction process

Published online by Cambridge University Press:  01 February 2011

Jae-Hwan Park ,
Young-Jin Choi  and
Jae-Gwan Park
Jae-Hwan Park
Affiliation:
Materials Science and Technology Division, Korea Institute of Science and Technology, PO Box 131, Cheongryang, Seoul 130–650, Korea
Young-Jin Choi
Affiliation:
Materials Science and Technology Division, Korea Institute of Science and Technology, PO Box 131, Cheongryang, Seoul 130–650, Korea
Jae-Gwan Park
Affiliation:
Materials Science and Technology Division, Korea Institute of Science and Technology, PO Box 131, Cheongryang, Seoul 130–650, Korea
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Abstract

A systematic hierarchical evolution of nanowires, nanorods, and nanosheets in ZnO, based on a oxygen-assisted carbothermal reduction process, was presented. Nanowires, nanorods, and nanosheets were synthesized in series with controlling oxygen partial pressure from 10-6 to 10-1. It was impossible to get ZnO nanowires with using Ar gas only and more than 1ppm of oxygen could successfully introduce the ZnO nanowires on the Si substrates at the downstream of the tube. The additional oxygen gas with Ar carrier gas could introduce not only the nanowires but also the combs and sheets. The details of nanocombs and nanosheets also were presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 848: Symposium FF – Solid-State Chemistry of Inorganic Materials V , 2004 , FF9.6
Copyright
Copyright © Materials Research Society 2005

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References

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