Skip navigation
Skip navigation

Nearly intrinsic exciton lifetimes in single twin-free GaAs/AlGaAs core-shell nanowire heterostructures

Perera, S.; Fickenscher, M. A.; Jackson, H. E.; Smith, L. M.; Yarrison-Rice, J. M.; Joyce, H. J.; Gao, Q.; Jagadish, C.; Zhang, X.; Zou, J.; Tan, Hark Hoe


CW and time-resolvedphotoluminescence measurements are used to investigate exciton recombination dynamics in GaAs∕AlGaAsheterostructurenanowires grown with a recently developed technique which minimizes twinning. A thin capping layer is deposited to eliminate the possibility of oxidation of the AlGaAs shell as a source of oxygen defects in the GaAs core. We observe exciton lifetimes of ∼1ns, comparable to high quality two-dimensional double heterostructures. These GaAsnanowires allow one to...[Show more]

CollectionsANU Research Publications
Date published: 2008-08-06
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.2967877


File Description SizeFormat Image
01_Perera_Nearly_intrinsic_exciton_2008.pdf788.86 kBAdobe PDFThumbnail

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator