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Keywords:

  • Conjugated polymers;
  • Defects;
  • Transistors;
  • Charge transport;
  • Grain bourndaries
Thumbnail image of graphical abstract

P3HT films that are highly anisotropic in-plane are produced using a directional crystallization technique, and the charge-transport properties of grain bourdaries between different orientations of crystallites are studied. Boundaries along the fiber provide a small barrier to charge transport when compared to fiber-to-fiber grain boundaries. The films allow a correlation to be drawn between the grain-boundary type and charge-transport behavior in P3HT.