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Portrait of Reine Wallenberg. Photo: Kennet Ruona

Reine Wallenberg

Professor, Coordinator Materials Science

Portrait of Reine Wallenberg. Photo: Kennet Ruona

Aerotaxy : gas-phase epitaxy of quasi 1D nanostructures

Author

  • Sudhakar Sivakumar
  • Axel R. Persson
  • Wondwosen Metaferia
  • Magnus Heurlin
  • Reine Wallenberg
  • Lars Samuelson
  • Knut Deppert
  • Jonas Johansson
  • Martin H. Magnusson

Summary, in English

Cost- and resource-efficient growth is necessary for many applications of semiconductor nanowires. We here present the design, operational details and theory behind Aerotaxy, a scalable alternative technology for producing quality crystalline nanowires at a remarkably high growth rate and throughput. Using size-controlled Au seed particles and organometallic precursors, Aerotaxy can produce nanowires with perfect crystallinity and controllable dimensions, and the method is suitable to meet industrial production requirements. In this report, we explain why Aerotaxy is an efficient method for fabricating semiconductor nanowires and explain the technical aspects of our custom-built Aerotaxy system. Investigations using SEM (scanning electron microscope), TEM (transmission electron microscope) and other characterization methods are used to support the claim that Aerotaxy is indeed a scalable method capable of producing nanowires with reproducible properties. We have investigated both binary and ternary III-V semiconductor material systems like GaAs and GaAsP. In addition, common aspects of Aerotaxy nanowires deduced from experimental observations are used to validate the Aerotaxy growth model, based on a computational flow dynamics (CFD) approach. We compare the experimental results with the model behaviour to better understand Aerotaxy growth.

Department/s

  • Solid State Physics
  • NanoLund
  • Centre for Analysis and Synthesis

Publishing year

2021

Language

English

Pages

25605-25605

Publication/Series

Nanotechnology

Volume

32

Issue

2

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Nano Technology

Status

Published

ISBN/ISSN/Other

  • ISSN: 0957-4484