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  • Ponseca, CarlitoLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Division of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden (author)

Ultrafast Terahertz Photoconductivity of Bulk Heterojunction Materials Reveals High Carrier Mobility up to Nanosecond Time Scale

  • Article/chapterEnglish2012

Publisher, publication year, extent ...

  • 2012-07-13
  • American Chemical Society (ACS),2012

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:336ce450-718e-47f5-bd6f-fe046a7640aa
  • https://doi.org/10.1021/ja301757yDOI
  • https://research.chalmers.se/publication/163156URI
  • https://lup.lub.lu.se/record/2967681URI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-175370URI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • The few-picosecond (ps) decay of terahertz (THz) photoconductivity typically observed for conjugated polymer fullerene blends (at excitation fluencies similar to 10(15) photons/cm(2) per pulse) is shown to be a result of charge pair annihilation for two polymer:PCBM blends. At a factor of 100 lower excitation density, the THz decay is in the hundreds of ps time scale, implying that very high carrier mobility (similar to 0.1 cm(2) V-1 s(-1)) prevails for long time after charge formation, of importance for free charge formation in organic solar cells.

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  • Yartsev, ArkadyLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Division of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden(Swepub:lu)chph-ay (author)
  • Wang, Ergang,1981Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemical and Biological Engineering/Polymer Technology, Chalmers University of Technology, 412 96 Göteborg, Sweden(Swepub:cth)ergang (author)
  • Andersson, Mats,1966Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemical and Biological Engineering/Polymer Technology, Chalmers University of Technology, 412 96 Göteborg, Sweden(Swepub:cth)matsand (author)
  • Vithanage, DimaliLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Division of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden(Swepub:lu)chem-dmv (author)
  • Sundström, VillyLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Division of Chemical Physics, Lund University, Box 124, 221 00 Lund, Sweden(Swepub:lu)chph-vs (author)
  • Kemisk fysikEnheten för fysikalisk och teoretisk kemi (creator_code:org_t)

Related titles

  • In:Journal of the American Chemical Society: American Chemical Society (ACS)134:29, s. 11836-118391520-51260002-7863

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