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Effects of Bi incor...
Effects of Bi incorporation on recombination processes in wurtzite GaBiAs nanowires
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- Zhang, Bin (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Jansson, Mattias (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Chen, P-P (author)
- Chinese Acad Sci, Peoples R China
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- Wang, X-J (author)
- Chinese Acad Sci, Peoples R China
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- Chen, Weimin (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Buyanova, Irina (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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(creator_code:org_t)
- 2020-03-13
- 2020
- English.
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In: Nanotechnology. - : IOP PUBLISHING LTD. - 0957-4484 .- 1361-6528. ; 31:22
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- The effects of Bi incorporation on the recombination process in wurtzite (WZ) GaBiAs nanowires are studied by employing micro-photoluminescence (mu-PL) and time-resolved PL spectroscopies. It is shown that at low temperatures (T amp;lt; 75 K) Bi-induced localization effects cause trapping of excitons within band-tail states, which prolongs their lifetime and suppresses surface nonradiative recombination (SNR). With increasing temperature, the trapped excitons become delocalized and their lifetime rapidly shortens due to facilitated SNR. Furthermore, Bi incorporation in the GaBiAs NW is found to have a minor influence on the surface states responsible for SNR.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- GaBiAs; nanowires; wurtzite; exciton localization; surface recombination
Publication and Content Type
- ref (subject category)
- art (subject category)
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