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Zinc blende and wurtzite crystal structure formation in gold catalyzed InGaAs nanowires

Johansson, Jonas LU and Leshchenko, Egor D. LU (2019) In Journal of Crystal Growth 509. p.118-123
Abstract

III-V semiconductor nanowires made of materials which have the zinc blende crystal structure in bulk are well known to exhibit either the zinc blende or the wurtzite crystal structure. Understanding and controlling which crystal structure that forms is of highest importance for nanowire applications in a variety of areas. In addition to this, composition control in ternary nanowires is another key technology area for successful nanowire applications. We derive a general model, based on two-component nucleation theory, which we use to explain the so far less understood experimental observations of zinc blende, wurtzite, and mixed crystal structure as a function of growth conditions and composition, x, in gold catalyzed... (More)

III-V semiconductor nanowires made of materials which have the zinc blende crystal structure in bulk are well known to exhibit either the zinc blende or the wurtzite crystal structure. Understanding and controlling which crystal structure that forms is of highest importance for nanowire applications in a variety of areas. In addition to this, composition control in ternary nanowires is another key technology area for successful nanowire applications. We derive a general model, based on two-component nucleation theory, which we use to explain the so far less understood experimental observations of zinc blende, wurtzite, and mixed crystal structure as a function of growth conditions and composition, x, in gold catalyzed InxGa1-xAs nanowires. An interesting theoretical finding is that the wurtzite and zinc blende phases have different compositions, even if they are nucleated from the same catalyst particle at the same conditions.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
A1. Crystal structure, A1. Nanostructures, A1. Nucleation, B2. Semiconducting III-V materials, B2. Semiconducting ternary compounds
in
Journal of Crystal Growth
volume
509
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:85059804642
ISSN
0022-0248
DOI
10.1016/j.jcrysgro.2019.01.002
language
English
LU publication?
yes
id
83f02277-bf71-48e2-8e0c-c0258e2371dc
date added to LUP
2019-01-23 09:17:57
date last changed
2019-02-20 11:44:03
@article{83f02277-bf71-48e2-8e0c-c0258e2371dc,
  abstract     = {<p>III-V semiconductor nanowires made of materials which have the zinc blende crystal structure in bulk are well known to exhibit either the zinc blende or the wurtzite crystal structure. Understanding and controlling which crystal structure that forms is of highest importance for nanowire applications in a variety of areas. In addition to this, composition control in ternary nanowires is another key technology area for successful nanowire applications. We derive a general model, based on two-component nucleation theory, which we use to explain the so far less understood experimental observations of zinc blende, wurtzite, and mixed crystal structure as a function of growth conditions and composition, x, in gold catalyzed In<sub>x</sub>Ga<sub>1-x</sub>As nanowires. An interesting theoretical finding is that the wurtzite and zinc blende phases have different compositions, even if they are nucleated from the same catalyst particle at the same conditions.</p>},
  author       = {Johansson, Jonas and Leshchenko, Egor D.},
  issn         = {0022-0248},
  keyword      = {A1. Crystal structure,A1. Nanostructures,A1. Nucleation,B2. Semiconducting III-V materials,B2. Semiconducting ternary compounds},
  language     = {eng},
  pages        = {118--123},
  publisher    = {Elsevier},
  series       = {Journal of Crystal Growth},
  title        = {Zinc blende and wurtzite crystal structure formation in gold catalyzed InGaAs nanowires},
  url          = {http://dx.doi.org/10.1016/j.jcrysgro.2019.01.002},
  volume       = {509},
  year         = {2019},
}