Interplay between electron-phonon coupling and disorder strength on the transport properties of organic semiconductors (Articolo in rivista)

Type
Label
  • Interplay between electron-phonon coupling and disorder strength on the transport properties of organic semiconductors (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.85.155205 (literal)
Alternative label
  • C. A. Perroni and V. Cataudella (2012)
    Interplay between electron-phonon coupling and disorder strength on the transport properties of organic semiconductors
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • C. A. Perroni and V. Cataudella (literal)
Pagina inizio
  • 155205/1 (literal)
Pagina fine
  • 155205/5 (literal)
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  • http://link.aps.org/doi/10.1103/PhysRevB.85.155205 (literal)
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  • 85 (literal)
Rivista
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  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 15 (literal)
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  • CNR-SPIN and Dipartimento di Scienze Fisiche, Università di Napoli \"Federico II\", I-80126 Napoli, Italy (literal)
Titolo
  • Interplay between electron-phonon coupling and disorder strength on the transport properties of organic semiconductors (literal)
Abstract
  • The combined effect of bulk and interface electron-phonon couplings on the transport properties is investigated in a model for organic semiconductors gated with polarizable dielectrics. While the bulk electron-phonon interaction affects the behavior of mobility in the coherent regime below room temperature, the interface coupling is dominant for the activated high-T contribution of localized polarons. In order to improve the description of the transport properties, the presence of disorder is needed in addition to electron-phonon couplings. The effects of a weak disorder largely increase the activation energies of mobility and induce the small polaron formation at lower values of electron-phonon couplings in the experimentally relevant window 150 K
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