Organization of Charge-Carrier Pathways for Organic Electronics


  • This work was supported by the Deutsche Forschungsgemeinschaft (Schwerpunktprogramm: Organische Feldeffekttransistoren) and the EU project NAIMO (Integrated Project Number NMP4-CT-2004-500355). M. K. and F. L. thank the Fonds der Chemischen Industrie for graduate fellowships. Supporting Information is available online from Wiley Interscience or from the author.


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Controlling self-organization: The chemical variation of alkyl substituents on the discotic hexa-peri-hexabenzocoronene allows the molecular orientation to be controlled with respect to a substrate, which is a key prerequisite to implement such semiconductors into electronic devices (see figure). Charge-carrier mobility determined by a time-of-flight technique reveals a high anisotropy along and perpendicular to the established columnar superstructure.