Charge transport in oligo phenylene and phenylene-thiophene nanofibers

Jakob Kjelstrup-Hansen*, Joseph E. Norton, Demetrio A.da Silva Filho, Jean-Luc Bredas, Horst Günter Rubahn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Charge carrier mobilities have been measured in elongated crystalline aggregates with nanoscale cross-sectional dimensions. These molecular crystals are grown via dedicated epitaxial surface growth. They consist of well-ordered phenylene-thiophene (co-) oligomers that have been systematically tailored to study mobility of oligomers containing six rings and a variable number of thiophene rings. These organic nanoscale one-dimensional systems demonstrate charge mobilities as high as 1 cm2 V-1 s-1. Density functional theory calculations have been performed in order to correlate the experimentally observed trends in mobility with molecular charge transport properties.

Original languageEnglish (US)
Pages (from-to)1228-1234
Number of pages7
JournalOrganic Electronics
Volume10
Issue number7
DOIs
StatePublished - Jan 1 2009

Keywords

  • Marcus theory
  • Mobility
  • Organic nanofibers
  • Space-charge limited current

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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