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Knut Deppert

Knut Deppert

Professor

Knut Deppert

Failure of the vapor-liquid-solid mechanism in Au-assisted MOVPE growth of InAs nanowires

Author

  • Kimberly Dick Thelander
  • Knut Deppert
  • Thomas Mårtensson
  • B Mandl
  • Lars Samuelson
  • Werner Seifert

Summary, in English

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 SiOx is used to support this conclusion.

Department/s

  • Solid State Physics

Publishing year

2005

Language

English

Pages

761-764

Publication/Series

Nano Letters

Volume

5

Issue

4

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Nano Technology

Status

Published

ISBN/ISSN/Other

  • ISSN: 1530-6992