Chemistry of Materials · 2005 · 244 citations · 22 references
Natural SciencesChemistryMaterials ScienceElectronic MaterialsPolymer ChemistryThin FilmsConducting PolymersConductive PolymersOrganic SemiconductorsPolymer CharacterizationPolymer PhysicsPolymer Thin FilmsHole TransportMicrostructureMolecular OrientationNear-edge X-ray Absorption Fine Structure SpectroscopyPolymer MicrostructurePolymer OrientationPolythiopheneSpin Coating
The molecular orientation of regioregular poly(3-hexylthiophene) varies from edge-on to plane-on depending on the film drying rate controlled by spin-coating speed. The field effect hole mobility varies accordingly. Orientation was determined with near-edge X-ray fine structure spectroscopy of the π* resonance, which is orthogonal to the conjugated plane.
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Two-dimensional charge transport in self-organized, high-mobility conjugated polymers
Henning Sirringhaus, P. J. Brown, Richard H. Friend et al. · Nature · 1999 · 4.6K citations