Perera, S.; Fickenscher, M. A.; Jackson, H. E.; Smith, L. M.; Yarrison-Rice, J. M.; Joyce, H. J.; Gao, Q.; Tan, H. H.; Jagadish, C.; Zhang, X.; Zou, J.
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]
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.