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Core-shell carrier ...
Core-shell carrier and exciton transfer in GaAs/GaNAs coaxial nanowires
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- Chen, Shula (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska fakulteten
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- Jansson, Mattias (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska fakulteten
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- Filippov, Stanislav (author)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska fakulteten
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- Ishikawa, Fumitaro (author)
- Ehime University, Japan
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- Chen, Weimin (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska fakulteten
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- Buyanova, Irina (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska fakulteten
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(creator_code:org_t)
- American Institute of Physics (AIP), 2016
- 2016
- English.
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In: Journal of Vacuum Science & Technology B. - : American Institute of Physics (AIP). - 1071-1023 .- 1520-8567. ; 34:4, s. 04J104-
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Comprehensive studies of GaAs/GaNAs coaxial nanowires grown on Si substrates are carried out by temperature-dependent photoluminescence (PL) and PL excitation, to evaluate effects of the shell formation on carrier recombination. The PL emission from the GaAs core is found to transform into a series of sharp PL lines upon radial growth of the GaNAs shell, pointing toward the formation of localization potentials in the core. This hampers carrier transfer at low temperatures from the core in spite of its wider bandgap. Carrier injection from the core to the optically active shell is found to become thermally activated at Tamp;gt;60 K, which implies that the localization potentials are rather shallow. (C) 2016 American Vacuum Society.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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