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Keywords:

  • conducting materials;
  • electron transport;
  • fluorine;
  • semiconductors;
  • thiophene oligomers
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A new family of perfluoroarene-modified thiophene semiconductors 13 has been synthesized to assess the influence of perfluoroarene introduction and regiochemistry on molecular and thin-film transistor properties. Compound 1 is an n-type semiconductor with a mobility approaching 0.1 cm2 V−1 s−1 whereas 2 and 3 exhibit p-type behavior. These results show that the origin of n-type carrier mobility is not solely a consequence of solution/film LUMO and HOMO energies.