Diameter Control of GaSb Nanowires Revealed by In Situ Environmental Transmission Electron Microscopy
Marnauza, Mikelis LU
; Sjökvist, Robin
LU
; Lehmann, Sebastian
LU
and Dick, Kimberly
LU
(2023)
In The Journal of Physical Chemistry Letters
14(33).
p.7404-7410
- Abstract
- Several nanowire properties are strongly dependent on their diameter, which is notoriously difficult to control for III–Sb nanowires compared with other III–V nanowires. Herein environmental transmission electron microscopy is utilized to study the growth of Au nanoparticle seeded GaSb nanowires in situ. In this study, the real time changes to morphology and nanoparticle composition as a result of precursor V/III ratio are investigated. For a wide range of the growth parameters, it is observed that decreasing the V/III ratio increases the nanoparticle volume through Ga accumulation in the nanoparticle. The increase in nanoparticle volume in turn forces the nanowire diameter to expand. The effect of the V/III ratio on diameter allows the... (More)
- Several nanowire properties are strongly dependent on their diameter, which is notoriously difficult to control for III–Sb nanowires compared with other III–V nanowires. Herein environmental transmission electron microscopy is utilized to study the growth of Au nanoparticle seeded GaSb nanowires in situ. In this study, the real time changes to morphology and nanoparticle composition as a result of precursor V/III ratio are investigated. For a wide range of the growth parameters, it is observed that decreasing the V/III ratio increases the nanoparticle volume through Ga accumulation in the nanoparticle. The increase in nanoparticle volume in turn forces the nanowire diameter to expand. The effect of the V/III ratio on diameter allows the engineering of diameter modulated nanowires, where the modulation persisted after the growth. Lastly, this study demonstrates the observed trends can be reproduced in a conventional ex situ system, highlighting the transferability and importance of the results obtained in situ. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/e613b149-b37c-4e05-88d0-e83d5b4396df
- author
- Marnauza, Mikelis
LU
; Sjökvist, Robin
LU
; Lehmann, Sebastian
LU
and Dick, Kimberly
LU
- organization
- publishing date
- 2023-08-11
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of Physical Chemistry Letters
- volume
- 14
- issue
- 33
- pages
- 7 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:85168778173
- pmid:37566795
- ISSN
- 1948-7185
- DOI
- 10.1021/acs.jpclett.3c01928
- language
- English
- LU publication?
- yes
- id
- e613b149-b37c-4e05-88d0-e83d5b4396df
- date added to LUP
- 2023-08-28 11:14:32
- date last changed
- 2024-02-27 03:00:27
@article{e613b149-b37c-4e05-88d0-e83d5b4396df,
abstract = {{Several nanowire properties are strongly dependent on their diameter, which is notoriously difficult to control for III–Sb nanowires compared with other III–V nanowires. Herein environmental transmission electron microscopy is utilized to study the growth of Au nanoparticle seeded GaSb nanowires in situ. In this study, the real time changes to morphology and nanoparticle composition as a result of precursor V/III ratio are investigated. For a wide range of the growth parameters, it is observed that decreasing the V/III ratio increases the nanoparticle volume through Ga accumulation in the nanoparticle. The increase in nanoparticle volume in turn forces the nanowire diameter to expand. The effect of the V/III ratio on diameter allows the engineering of diameter modulated nanowires, where the modulation persisted after the growth. Lastly, this study demonstrates the observed trends can be reproduced in a conventional ex situ system, highlighting the transferability and importance of the results obtained in situ.}},
author = {{Marnauza, Mikelis and Sjökvist, Robin and Lehmann, Sebastian and Dick, Kimberly}},
issn = {{1948-7185}},
language = {{eng}},
month = {{08}},
number = {{33}},
pages = {{7404--7410}},
publisher = {{The American Chemical Society (ACS)}},
series = {{The Journal of Physical Chemistry Letters}},
title = {{Diameter Control of GaSb Nanowires Revealed by <i>In Situ</i> Environmental Transmission Electron Microscopy}},
url = {{http://dx.doi.org/10.1021/acs.jpclett.3c01928}},
doi = {{10.1021/acs.jpclett.3c01928}},
volume = {{14}},
year = {{2023}},
}