Role of thermodynamics and kinetics in the composition of ternary III-V nanowires
Leshchenko, Egor D. LU and Johansson, Jonas LU
(2020)
In Nanomaterials
10(12).
- Abstract
We explain the composition of ternary nanowires nucleating from a quaternary liquid melt. The model we derive describes the evolution of the solid composition from the nucleated-limited composition to the kinetic one. The effect of the growth temperature, group V concentration and Au/III concentration ratio on the solid-liquid dependence is studied. It has been shown that the solid composition increases with increasing temperature and Au concentration in the droplet at the fixed In/Ga concentration ratio. The model does not depend on the site of nucleation and the geometry of monolayer growth and is applicable for nucleation and growth on a facet with finite radius. The case of a steady-state (or final) solid composition is considered... (More)
We explain the composition of ternary nanowires nucleating from a quaternary liquid melt. The model we derive describes the evolution of the solid composition from the nucleated-limited composition to the kinetic one. The effect of the growth temperature, group V concentration and Au/III concentration ratio on the solid-liquid dependence is studied. It has been shown that the solid composition increases with increasing temperature and Au concentration in the droplet at the fixed In/Ga concentration ratio. The model does not depend on the site of nucleation and the geometry of monolayer growth and is applicable for nucleation and growth on a facet with finite radius. The case of a steady-state (or final) solid composition is considered and discussed separately. While the nucleation-limited liquid-solid composition dependence contains the miscibility gap at relevant temperatures for growth of InxGa1-xAs NWs, the miscibility gap may be suppressed completely in the steady-state growth regime at high supersaturation. The theoretical results are compared with available experimental data via the combination of the here described solid-liquid and a simple kinetic liquid-vapor model.
(Less)
- author
- Leshchenko, Egor D.
LU
and Johansson, Jonas
LU
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Au-catalyzed, Composition, Modelling, Quaternary liquid melts, Ternary nanowires
- in
- Nanomaterials
- volume
- 10
- issue
- 12
- article number
- 2553
- pages
- 15 pages
- publisher
- MDPI AG
- external identifiers
-
- pmid:33353245
- scopus:85098146353
- ISSN
- 2079-4991
- DOI
- 10.3390/nano10122553
- project
- Kinetic and thermodynamic modelling of ternary nanowire growth
- language
- English
- LU publication?
- yes
- id
- 2cdca437-50f8-40cc-97bc-ac0864abe9ce
- date added to LUP
- 2021-01-07 10:00:54
- date last changed
- 2024-03-05 17:30:50
@article{2cdca437-50f8-40cc-97bc-ac0864abe9ce,
abstract = {{<p>We explain the composition of ternary nanowires nucleating from a quaternary liquid melt. The model we derive describes the evolution of the solid composition from the nucleated-limited composition to the kinetic one. The effect of the growth temperature, group V concentration and Au/III concentration ratio on the solid-liquid dependence is studied. It has been shown that the solid composition increases with increasing temperature and Au concentration in the droplet at the fixed In/Ga concentration ratio. The model does not depend on the site of nucleation and the geometry of monolayer growth and is applicable for nucleation and growth on a facet with finite radius. The case of a steady-state (or final) solid composition is considered and discussed separately. While the nucleation-limited liquid-solid composition dependence contains the miscibility gap at relevant temperatures for growth of InxGa1-xAs NWs, the miscibility gap may be suppressed completely in the steady-state growth regime at high supersaturation. The theoretical results are compared with available experimental data via the combination of the here described solid-liquid and a simple kinetic liquid-vapor model.</p>}},
author = {{Leshchenko, Egor D. and Johansson, Jonas}},
issn = {{2079-4991}},
keywords = {{Au-catalyzed; Composition; Modelling; Quaternary liquid melts; Ternary nanowires}},
language = {{eng}},
number = {{12}},
publisher = {{MDPI AG}},
series = {{Nanomaterials}},
title = {{Role of thermodynamics and kinetics in the composition of ternary III-V nanowires}},
url = {{http://dx.doi.org/10.3390/nano10122553}},
doi = {{10.3390/nano10122553}},
volume = {{10}},
year = {{2020}},
}