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Intermolecular hybridization governs molecular electrical doping

  • Current models for molecular electrical doping of organic semiconductors are found to be at odds with other well-established concepts in that field, like polaron formation. Addressing these inconsistencies for prototypical systems, we present experimental and theoretical evidence for intermolecular hybridization of organic semiconductor and dopant frontier molecular orbitals. Common doping-related observations are attributed to this phenomenon, and controlling the degree of hybridization emerges as a strategy for overcoming the present limitations in the yield of doping-induced charge carriers.

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Author details:Ingo Salzmann, Georg Heimel, Steffen Duhm, Martin Oehzelt, Patrick Pingel, Benjamin M. George, Alexander Schnegg, Klaus Lips, Ralf-Peter Blum, Antje Vollmer, Norbert Koch
Parent title (English):Physical review letters
Publisher:American Physical Society
Place of publication:College Park
Publication type:Article
Year of first publication:2012
Year of completion:2012
Release date:2017/03/26
Page number:5
Funding institution:DFG (Germany); JSPS (Japan); Austrian Science Fund (FWF) [P21094]
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Peer review:Referiert