Failure of the Vapor−Liquid−Solid Mechanism in Au-Assisted MOVPE Growth of InAs Nanowires
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- 18 March 2005
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 5 (4) , 761-764
- https://doi.org/10.1021/nl050301c
Abstract
We report the temperature dependence of the Au-assisted growth of InAs nanowires in MOVPE. Extensive studies of the growth of such nanowires have attributed growth to the so-called vapor-liquid-solid (VLS) mechanism, with a liquid Au-In alloy particle. We assert here that growth is instead assisted by a solid particle and does not occur at all when the particle is a liquid. Thus the temperature range of InAs nanowire growth is limited by the melting of the Au-In alloy. Comparison with growth of InAs nanowires in the same system assisted by a layer of SiO(x) is used to support this conclusion.Keywords
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