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Three-dimensional structure of P3HT assemblies in organic solvents revealed by cryo-TEM
Maarten J M Wirix1, Paul H H Bomans, Heiner Friedrich
1Laboratory for Materials and Interface Chemistry and Soft Matter Cryo-TEM Research Unit, Eindhoven University of Technology , P.O. Box 513, Eindhoven, 5600 MB, The Netherlands.
Abstract:
Poly(3-hexylthiophene) (P3HT) assemblies in vitrified organic solvents were visualized at nanometer scale resolution by cryo-transmission electron microscopy, low dose electron diffraction, and cryo-tomography revealing a three-dimensional lamellar structure formed by the stacking of the conjugated backbones of P3HT with a distance of 1.7 nm and increased order in the bulk of the nanowire. This combination of techniques reveals local structures in dispersion and the condensed state that play a crucial role in the performance of organic electronic devices.
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