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Study of photocurre...
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Jain, VishalHögskolan i Halmstad,Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Tillämpad matematik och fysik (MPE-lab),Solid State Physics and the Nanometer Structure Consortium, Lund University, Lund, Sweden,Nanovetenskap
(författare)
Study of photocurrent generation in InP nanowire-based p(+)-i-n(+) photodetectors
- Artikel/kapitelEngelska2014
Förlag, utgivningsår, omfång ...
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2015-01-07
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Beijing & Berlin/Heidelberg :Springer Science and Business Media LLC,2014
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:050c1a13-806b-4053-9800-56b07fc0d236
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https://lup.lub.lu.se/record/4668128URI
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https://doi.org/10.1007/s12274-014-0422-2DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-25121URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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The authors acknowledge financial support from the Nanometer Structure Consortium nmC@LU, Halmstad University, the Erik Johan Ljungberg Foundation, the Carl Trygger Foundation, the Swedish Research Council, the Swedish National Board for Industrial and Technological Development, the Swedish Foundation for Strategic Research, the Swedish Energy Agency and the EU program AMON-RA (No. 214814).
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We report on electrical and optical properties of p(+)-i-n(+)photodetectors/solar cells based on square millimeter arrays of InP nanowires (NWs) grown on InP substrates. The study includes a sample series where the p(+)-segment length was varied between 0 and 250 nm, as well as solar cells with 9.3% efficiency with similar design. The electrical data for all devices display clear rectifying behavior with an ideality factor between 1.8 and 2.5 at 300 K. From spectrally resolved photocurrent measurements, we conclude that the photocurrent generation process depends strongly on the p(+)-segment length. Without a p(+)-segment, photogenerated carriers funneled from the substrate into the NWs contribute strongly to the photocurrent. Adding a p(+)-segment decouples the substrate and shifts the depletion region, and collection of photogenerated carriers, to the NWs, in agreement with theoretical modeling. In optimized solar cells, clear spectral signatures of interband transitions in the zinc blende and wurtzite InP layers of the mixed-phase i-segments are observed. Complementary electroluminescence, transmission electron microscopy (TEM), as well as measurements of the dependence of the photocurrent on angle of incidence and polarization, support our interpretations.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Nowzari, AliLund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Lund University, Lund, Sweden,Solid State Physics and the Nanometer Structure Consortium(Swepub:lu)ftf-ano
(författare)
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Wallentin, JesperLund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Lund University, Lund, Sweden,Solid State Physics and the Nanometer Structure Consortium(Swepub:lu)ftf-jwa
(författare)
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Borgström, MagnusLund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Lund University, Lund, Sweden,Solid State Physics and the Nanometer Structure Consortium(Swepub:lu)ftf-mbo
(författare)
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Messing, MariaLund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Lund University, Lund, Sweden,Solid State Physics and the Nanometer Structure Consortium(Swepub:lu)ftf-mmi
(författare)
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Asoli, DamirIdeon Science Park, Sol Voltaics AB, Lund, Sweden
(författare)
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Graczyk, MariuszLund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Lund University, Lund, Sweden,Solid State Physics and the Nanometer Structure Consortium(Swepub:lu)ftf-mgr
(författare)
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Witzigmann, BerndUniversity of Kassel, Kassel, Germany,Department of Computational Electronics and Photonics
(författare)
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Capasso, FedericoHarvard University, Cambridge, Massachusetts, USA,School of Engineering and Applied Sciences
(författare)
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Samuelson, LarsLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Lund University, Lund, Sweden,Solid State Physics and the Nanometer Structure Consortium(Swepub:lu)ftf-lsa
(författare)
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Pettersson, HåkanHögskolan i Halmstad,Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Tillämpad matematik och fysik (MPE-lab),Nanovetenskap(Swepub:hh)hape
(författare)
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Fasta tillståndets fysikFysiska institutionen
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Nano ReseachBeijing & Berlin/Heidelberg : Springer Science and Business Media LLC7:4, s. 544-5521998-01241998-0000
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Jain, Vishal
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Nowzari, Ali
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Wallentin, Jespe ...
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Borgström, Magnu ...
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Messing, Maria
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Asoli, Damir
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Graczyk, Mariusz
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Samuelson, Lars
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