Journal article

Low ensemble disorder in quantum well tube nanowires

Abstract:: We have observed very low disorder in high quality quantum well tubes (QWT) in GaAs-Al0.4Ga0.6As core-multishell nanowires. Room-temperature photoluminescence spectra were measured from 150 single nanowires enabling a full statistical analysis of both intra- and inter-nanowire disorder. By modelling individual nanowire spectra, we assigned a quantum well tube thickness, a core disorder parameter and a QWT disorder parameter to each nanowire. A strong correlation was observed between disorder in the GaAs cores and disorder in the GaAs QWTs, which indicates that variations in core morphology effectively propagate to the shell layers. This highlights the importance of high quality core growth prior to shell deposition. Furthermore, variations in QWT thicknesses for different facet directions was found to be a likely cause of intra-wire disorder, highlighting the need for accurate shell growth.

Publication status:: Published

Peer review status:: Peer reviewed

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APA Style

Christopher L., M., Parkinson, P., Jiang, N., Boland, J., Conesa-Boj, S., Tan, H., Jagadish, C., Herz, L., & Johnston, M. (2015). Low ensemble disorder in quantum well tube nanowires. Nanoscale, 7(48), 20531–20538.

MLA Style

Christopher L., M., et al. “Low Ensemble Disorder in Quantum Well Tube Nanowires.” Nanoscale, vol. 7, no. 48, Royal Society of Chemistry, 2015, pp. 20531–38.

Chicago Style

Christopher L., M, P Parkinson, N Jiang, J Boland, S Conesa-Boj, H Tan, C Jagadish, L Herz, and M Johnston. 2015. “Low Ensemble Disorder in Quantum Well Tube Nanowires.” Nanoscale 7 (48): 20531–38.
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Files:: c5nr06996c.pdf

(Preview, Version of record, pdf, 2.1MB, Terms of use)

Publisher copy:: 10.1039/c5nr06996c

Authors

+ Christopher L., M More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Role:: Author

+ Parkinson, P More by this author

Role:: Author

+ Jiang, N More by this author

Role:: Author

+ Boland, J More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Role:: Author

+ Conesa-Boj, S More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Role:: Author

More authors...

+ Australian Research Council More from this funder

+ Engineering and Physical Sciences Research Council More from this funder

Publisher:: Royal Society of Chemistry
Journal:: Nanoscale More from this journal
Volume:: 7
Issue:: 48
Pages:: 20531-20538
Publication date:: 2015-12-01
Acceptance date:: 2015-11-06
DOI:: 10.1039/c5nr06996c
EISSN:: 2040-3372
ISSN:: 2040-3364

Language:: English
Pubs id:: pubs:580661
UUID:: uuid:cbc9659c-58e3-48c9-a28a-a5dde2685620
Local pid:: pubs:580661
Source identifiers:: 580661
Deposit date:: 2016-02-28

Terms of use

Copyright holder:: Davies et al
Copyright date:: 2015
Notes:: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.

Licence:: CC Attribution (CC BY)

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