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Cathodoluminescence visualisation of local thickness variations of GaAs/AlGaAs quantum-well tubes on nanowires

Gustafsson, A.; Jiang, Nian; Zheng, Changlin; Etheridge, Joanne; Gao, Qiang; Tan, Hark Hoe; Jagadish, Chennupati; Wong-Leung, Jennifer


We present spatially and spectrally resolved emission from nanowires with a thin radial layer of GaAs embedded in AlGaAs barriers, grown radially around taper-free GaAs cores. The GaAs layers are thin enough to show quantization, and are quantum wells. Due to their shape, they are referred to as quantum well tubes (QWTs). We have investigated three different nominal QWT thicknesses: 1.5, 2.0, and 6.0 nm. They all show average emission spectra from the QWT with an energy spread corresponding to...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Nanotechnology
DOI: 10.1088/1361-6528/ab9fb3
Access Rights: Open Access


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