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Keywords:

  • Conjugated polymers;
  • Light-emitting diodes, organic (OLEDs);
  • Poly(phenylene vinylene)s (PPVs);
  • Structure–property relationships
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The application of an electric field (Ecast) during solvent vaporization is shown to inhibit the formation of ordered domains in thin films of a poly(phenylenevinylene) derivative, resulting in a homogeneous environment favorable for charge transfer. An order-of-magnitude increase in charge-carrier mobility (see Figure) is achieved by the elimination of these commonly found domains.