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Characterization of Quantum Dot-like Emission from GaAs/GaNAs Core/Shell Nanowires
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-5751-6225
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-6405-9509
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-7155-7103
Ehime University, Japan.
2016 (English)In: 2016 IEEE 16TH INTERNATIONAL CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO), IEEE , 2016, 42-44 p.Conference paper (Refereed)
Abstract [en]

this work we investigate properties of ultra-narrow photoluminescence lines originating from recombination of excitons trapped by short-range potential fluctuations, caused by alloy disorder in GaAs/GaNAs core/shell nanowires. From power-dependent photoluminescence measurements we show that the emission behavior is consistent with biexciton-exciton cascade recombination in quantum dots. We also show that the thermal activation energy from the related localized states is of the order of 9-30 meV, suggesting a rather shallow confinement potential.

Place, publisher, year, edition, pages
IEEE , 2016. 42-44 p.
Keyword [en]
nanowires; quantum dots; GaNAs; biexciton
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-134519DOI: 10.1109/NANO.2016.7751294ISI: 000391840000013ISBN: 978-1-5090-1493-4 OAI: oai:DiVA.org:liu-134519DiVA: diva2:1074329
Conference
16th IEEE International Conference on Nanotechnology (IEEE-NANO)
Available from: 2017-02-15 Created: 2017-02-15 Last updated: 2017-03-27

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Jansson, MattiasChen, WeiminBuyanova, Irina
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CiteExportLink to record
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Citation style
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