Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

In situ analysis of catalyst composition during gold catalyzed GaAs nanowire growth

Maliakkal, Carina B. LU ; Jacobsson, Daniel LU ; Tornberg, Marcus LU ; Persson, Axel R. LU orcid ; Johansson, Jonas LU orcid ; Wallenberg, Reine LU and Dick, Kimberly A. LU (2019) In Nature Communications 10(1).
Abstract

Semiconductor nanowires offer the opportunity to incorporate novel structures and functionality into electronic and optoelectronic devices. A clear understanding of the nanowire growth mechanism is essential for well-controlled growth of structures with desired properties, but the understanding is currently limited by a lack of empirical measurements of important parameters during growth, such as catalyst particle composition. However, this is difficult to accurately determine by investigating post-growth. We report direct in situ measurement of the catalyst composition during nanowire growth for the first time. We study Au-seeded GaAs nanowires inside an electron microscope as they grow and measure the catalyst composition using X-ray... (More)

Semiconductor nanowires offer the opportunity to incorporate novel structures and functionality into electronic and optoelectronic devices. A clear understanding of the nanowire growth mechanism is essential for well-controlled growth of structures with desired properties, but the understanding is currently limited by a lack of empirical measurements of important parameters during growth, such as catalyst particle composition. However, this is difficult to accurately determine by investigating post-growth. We report direct in situ measurement of the catalyst composition during nanowire growth for the first time. We study Au-seeded GaAs nanowires inside an electron microscope as they grow and measure the catalyst composition using X-ray energy dispersive spectroscopy. The Ga content in the catalyst during growth increases with both temperature and Ga precursor flux.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature Communications
volume
10
issue
1
article number
4577
publisher
Nature Publishing Group
external identifiers
  • scopus:85073056209
  • pmid:31594930
ISSN
2041-1723
DOI
10.1038/s41467-019-12437-6
language
English
LU publication?
yes
id
a21bda6c-e085-45a8-8c6b-6f0683cae899
date added to LUP
2019-10-22 09:42:46
date last changed
2024-05-15 22:15:33
@article{a21bda6c-e085-45a8-8c6b-6f0683cae899,
  abstract     = {{<p>Semiconductor nanowires offer the opportunity to incorporate novel structures and functionality into electronic and optoelectronic devices. A clear understanding of the nanowire growth mechanism is essential for well-controlled growth of structures with desired properties, but the understanding is currently limited by a lack of empirical measurements of important parameters during growth, such as catalyst particle composition. However, this is difficult to accurately determine by investigating post-growth. We report direct in situ measurement of the catalyst composition during nanowire growth for the first time. We study Au-seeded GaAs nanowires inside an electron microscope as they grow and measure the catalyst composition using X-ray energy dispersive spectroscopy. The Ga content in the catalyst during growth increases with both temperature and Ga precursor flux.</p>}},
  author       = {{Maliakkal, Carina B. and Jacobsson, Daniel and Tornberg, Marcus and Persson, Axel R. and Johansson, Jonas and Wallenberg, Reine and Dick, Kimberly A.}},
  issn         = {{2041-1723}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{1}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Nature Communications}},
  title        = {{In situ analysis of catalyst composition during gold catalyzed GaAs nanowire growth}},
  url          = {{http://dx.doi.org/10.1038/s41467-019-12437-6}},
  doi          = {{10.1038/s41467-019-12437-6}},
  volume       = {{10}},
  year         = {{2019}},
}