Anisotropy in the Mobility and Photogeneration of Charge Carriers in Thin Films of Discotic Hexabenzocoronenes, Columnarly Self-Assembled on Friction-Deposited Poly(tetrafluoroethylene)

Jorge Piris, Michael G. Debije, Natalie Stutzmann, Anick M. Van de Craats, Mark D. Watson, Klaus Müllen, John M. Warmam

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

The mobility of charge carriers in poly(tetrafluoroethylene) (PTFE) -aligned hexabenzocoronene (HBC) films was shown to be highly anisotropic with transport along the columns favored by more than an order of magnitude. The transition dipole moment of the first optical absorption band was oriented parallel to the polymer backbone. A substantial difference between the two HBC derivatives was found to be in the decay kinetics of the photoconductivity.

Original languageEnglish
Pages (from-to)1736-1740
Number of pages5
JournalAdvanced Materials
Volume15
Issue number20
DOIs
StatePublished - Oct 16 2003

ASJC Scopus subject areas

  • Materials Science (all)
  • Mechanics of Materials
  • Mechanical Engineering

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