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

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

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 (π‐stacking & main chain) plane...

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Veröffentlicht in:Advanced materials (Weinheim) 2012-02, Vol.24 (6), p.839-844
Hauptverfasser: Crossland, Edward J. W., Tremel, Kim, Fischer, Florian, Rahimi, Khosrow, Reiter, Günter, Steiner, Ullrich, Ludwigs, Sabine
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropy
Channels
Charge transport
conjugated polymers
Crystal structure
Crystallization
Electron Transport
Grain boundaries
organic field-effect transistors
self assembly
Solvents
structure-property relationships
Swelling
thin films
Thiophenes - chemistry
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Beschreibung
Zusammenfassung: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 (π‐stacking & main chain) plane and the role of order–disorder grain boundaries are reported.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201104284