4.8 Article

Anisotropic Charge Transport in Spherulitic Poly(3-hexylthiophene) Films

Journal

ADVANCED MATERIALS
Volume 24, Issue 6, Pages 839-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201104284

Keywords

conjugated polymers; structure-property relationships; self assembly; thin films; organic field-effect transistors

Funding

  1. Freiburg Institute for Advanced Studies
  2. IRTG Soft Matter Science of the DFG
  3. DFG [SPP-1355]

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Macroscopic P3HT spherulitic crystals are grown in 25-nm-thick films via precise control of solvent swelling during polymer crystallization, which allow placement of transistor channels within single oriented crystal domains. Charge-transport anisotropy in the b-c (p-stacking & main chain) plane and the role of order-disorder grain boundaries are reported.

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