Kennedy, O;
Zapf, M;
Audinot, J-N;
Pal, S;
Eswara, S;
Wirtz, T;
Ronning, C;
(2019)
Photoluminescence of ZnO/ZnMgO heterostructure nanobelts grown by MBE.
Nanotechnology
10.1088/1361-6528/ab60cb.
(In press).
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Abstract
ZnO nanobelts grow with their polar axis perpendicular to growth direction. Heterostructure nanobelts may therefore contain hetero-interfaces along the polar axis of ZnO where polarization mismatch may induce electron confinement. We demonstrate the growth of such heterostructure nanobelts and investigate the effects of shell-growth temperature on nano-heterostructures using photoluminescence and secondary ion mass spectrometry in a focussed ion-beam microscope with a N+as the primary ion beam. We perform ow temperature photoluminescence on ensembles of such heterostructures and single nanostructure. We show how single nanobelts have photoluminescence spectra rich in features and attribute these to band misalignment at ZnO/ZnMgO interfaces embedded within nano-heterostructures.
| Type: | Article |
|---|---|
| Title: | Photoluminescence of ZnO/ZnMgO heterostructure nanobelts grown by MBE |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1361-6528/ab60cb |
| Publisher version: | https://doi.org/10.1088/1361-6528/ab60cb |
| Language: | English |
| Additional information: | © Copyright 2019 IOP Publishing. As the Version of Record of this article is going to be/has been published on a gold open access basis under a CC BY 3.0 licence, this Accepted Manuscript is available for reuse under a CC BY 3.0 licence immediately. |
| Keywords: | Heterostructure, MBE, Nanobelt, ZnO |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10088169 |
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