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  • Belova, ValentinaUniversity of Tübingen (author)

Evidence for Anisotropic Electronic Coupling of Charge Transfer States in Weakly Interacting Organic Semiconductor Mixtures

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2017-06-15
  • American Chemical Society (ACS),2017
  • 13 s.

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:fba44668-7bad-4620-8c44-010b8318c24d
  • https://lup.lub.lu.se/record/fba44668-7bad-4620-8c44-010b8318c24dURI
  • https://doi.org/10.1021/jacs.7b01622DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

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

Notes

  • We present a comprehensive investigation of the charge-transfer (CT) effect in weakly interacting organic semiconductor mixtures. The donor-acceptor pair diindenoperylene (DIP) and N,N′-bis(2-ethylhexyl)-1,7-dicyanoperylene-3,4/9,10-bis(dicarboxyimide) (PDIR-CN2) has been chosen as a model system. A wide range of experimental methods was used in order to characterize the structural, optical, electronic, and device properties of the intermolecular interactions. By detailed analysis, we demonstrate that the partial CT in this weakly interacting mixture does not have a strong effect on the ground state and does not generate a hybrid orbital. We also find a strong CT transition in light absorption as well as in photo- and electroluminescence. By using different layer sequences and compositions, we are able to distinguish electronic coupling in-plane vs out-of-plane and, thus, characterize the anisotropy of the CT state. Finally, we discuss the impact of CT exciton generation on charge-carrier transport and on the efficiency of photovoltaic devices.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Beyer, PaulHumboldt University of Berlin (author)
  • Meister, EduardUniversity of Augsburg (author)
  • Linderl, TheresaUniversity of Augsburg (author)
  • Halbich, Marc UwePhilipp University of Marburg (author)
  • Gerhard, MarinaPhilipp University of Marburg(Swepub:lu)ma3576ge (author)
  • Schmidt, StefanUniversity of Augsburg (author)
  • Zechel, ThomasUniversity of Augsburg (author)
  • Meisel, TinoHumboldt University of Berlin (author)
  • Generalov, Alexander V.Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)maxl-arg (author)
  • Anselmo, Ana SofiaHelmholtz Association of German Research Centers (author)
  • Scholz, ReinhardDresden University of Technology (author)
  • Konovalov, OlegEuropean Synchrotron Radiation Facility (author)
  • Gerlach, AlexanderUniversity of Tübingen (author)
  • Koch, MartinPhilipp University of Marburg (author)
  • Hinderhofer, AlexanderUniversity of Tübingen (author)
  • Opitz, AndreasHumboldt University of Berlin (author)
  • Brütting, WolfgangUniversity of Augsburg (author)
  • Schreiber, FrankUniversity of Tübingen (author)
  • University of TübingenHumboldt University of Berlin (creator_code:org_t)

Related titles

  • In:Journal of the American Chemical Society: American Chemical Society (ACS)139:25, s. 8474-84860002-78631520-5126

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