Published in
American Physical Society, Physical Review Letters, 3(108), 2012
DOI: 10.1103/physrevlett.108.035502
Links
- ORCID
- American Physical Society
- [bib-pubdb1.desy.de] | PDF
- [www.helmholtz-berlin.de]
- [bib-pubdb1.desy.de] | PDF
- [www.researchgate.net] | PDF
- [bib-pubdb1.desy.de] | PDF
- [edocs.fu-berlin.de] | PDF
Tools
Intermolecular Hybridization Governs Molecular Electrical Doping
,
Klaus Lips,
Ralf-Peter Blum,
Antje Vollmer,
Norbert Koch
Full text: Download
Abstract
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.