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Knut Deppert

Knut Deppert

Professor

Knut Deppert

Size-, shape-, and position-controlled GaAs nano-whiskers

Author

  • B. J. Ohlsson
  • M. T. Björk
  • M. H. Magnusson
  • K. Deppert
  • L. Samuelson
  • L. Reine Wallenberg

Summary, in English

We have developed a technique for the synthesis of size-selected, GaAs, epitaxial nano-whiskers, grown on a crystalline substrate. As catalysts, we used size-selected gold aerosol particles, which enabled us to fully vary the surface coverage independently of the whisker diameter. The whiskers were rod shaped, with a uniform diameter between 10 and 50 nm, correlated to the size of the catalytic seed. Furthermore, by the use of nano-manipulation of the aerosol particles by means of atomic force microscopy, we can nucleate individual nano-whiskers in a controlled manner at specific positions on a substrate with accuracy on the nm level.

Department/s

  • Solid State Physics
  • Centre for Analysis and Synthesis

Publishing year

2001-11-12

Language

English

Pages

3335-3337

Publication/Series

Applied Physics Letters

Volume

79

Issue

20

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Condensed Matter Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0003-6951