Skip to main content Accessibility help
×
Home
Hostname: page-component-684899dbb8-x64cq Total loading time: 0.196 Render date: 2022-05-26T03:03:48.838Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "useRatesEcommerce": false, "useNewApi": true }

On the Luminescence of VLS-grown GaAs-AlGaAs Core-Shell Nanowires and its Dependence on MOVPE Growth Conditions

Published online by Cambridge University Press:  31 January 2011

Paola Prete
Affiliation:
paola.prete@le.imm.cnr.it, IMM-CNR, Lecce, Italy
Nico Lovergine
Affiliation:
nico.lovergine@unisalento.it, University of Salento, Innovation Engineering, Lecce, Italy
Ilio Miccoli
Affiliation:
ilio.miccoli@unisalento.it, University of Salento, Innovation Engineering, Lecce, Italy
Fabio Marzo
Affiliation:
fabio.marzo@unisalento.it, University of Salento, Innovation Engineering, Lecce, Italy
Joan S. Burger
Affiliation:
jb3842@drexel.edu, University of Salento, Innovation Engineering, Lecce, Italy
Giancarlo Salviati
Affiliation:
salviati@imem.cnr.it, IMEM-CNR, Parma, Italy
Laura Lazzarini
Affiliation:
lazzarini@imem.cnr.it, IMEM-CNR, Parma, Italy
Get access

Abstract

We report on the photoluminescence (PL) of GaAs-Al0.32Ga0.68As core-shell nanowires grown by MOVPE, and their dependence on the precursors V:III molar ratio utilised in the vapor during growth. It is shown that the PL emission of the GaAs nanowire core red-shifts with decreasing the V:III ratio from 30:1 to 4:1, an effect tentatively ascribed to the build-up of a space-charge region at the core-shell hetero-interface, the latter associated to the unintentional incorporation of impurities, namely C in GaAs and Si in AlGaAs.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Wagner, R.S., and Ellis, W.C., Appl. Phys. Lett. 4, 89 (1964).CrossRefGoogle Scholar
2 Sköld, N., Karlsson, L.S., Larsson, M.W., Pistol, M.-E., Seifert, W., Trägårdh, J., and Samuelson, L., Nano Lett. 5, 19431947 (2005).CrossRefGoogle Scholar
3 Titova, L.V., Hoang, T.B., Jackson, H.E., Smith, L.M., Yarrison-Rice, J.M., Kim, Y., Joyce, H.J., Tan, H.H., and Jagadish, C., Appl. Phys. Lett. 89, 173126, 13 (2006).Google Scholar
4 Noborisaka, J., Motohisa, J., Hara, S., and Fukui, T., Appl. Phys. Lett. 87, 093109, 13 (2005).Google Scholar
5 Prete, P. Marzo, F., Paiano, P., Lovergine, N., Salviati, G., Lazzarini, L., and Sekiguchi, T., J. Cryst. Growth 310, 51145118 (2008).CrossRefGoogle Scholar
6 Paiano, P., Prete, P., Lovergine, N., and Mancini, A.M., J. Appl. Phys. 100, 094305, 14 (2006).Google Scholar
7 Miccoli, I., Prete, P., and Lovergine, N., to be reported elsewhere.Google Scholar
8 Richter, W., University of Rome “Tor Vergata“, private communication.Google Scholar
9 Su, W.S., Chen, T.T., Cheng, C.L., Fu, S.P., Chen, Y.F., Hsiao, C.L., and Tu, L.W., Nanotechnol. 19, 235401, 15 (2008).Google Scholar
10Data from Sigma-Aldrich Fine Chemicals High-Tech (UK).Google Scholar
11 Prete, P., Miccoli, I., Marzo, F., and Lovergine, N., to be reported elsewhere.Google Scholar

Linked content

Please note a has been issued for this article.

Save article to Kindle

To save this article to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

On the Luminescence of VLS-grown GaAs-AlGaAs Core-Shell Nanowires and its Dependence on MOVPE Growth Conditions
Available formats
×

Save article to Dropbox

To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.

On the Luminescence of VLS-grown GaAs-AlGaAs Core-Shell Nanowires and its Dependence on MOVPE Growth Conditions
Available formats
×

Save article to Google Drive

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

On the Luminescence of VLS-grown GaAs-AlGaAs Core-Shell Nanowires and its Dependence on MOVPE Growth Conditions
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *