High Carrier Mobility Polythiophene Thin Films: Structure Determination by Experiment and Theory

The structure within crystalline thin films of a high‐carrier‐mobility polythiophene is studied with complementary characterization methods and first‐principles theory. As shown in the figure, two important structural aspects are revealed: 1) a slip in the face‐to‐face π‐π packing, which strongly in...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2007-03, Vol.19 (6), p.833-837
Main Authors: DeLongchamp, D. M., Kline, R. J., Lin, E. K., Fischer, D. A., Richter, L. J., Lucas, L. A., Heeney, M., McCulloch, I., Northrup, J. E.
Format: Article
Language:English
Subjects:
CARRIER MOBILITY
CRYSTAL STRUCTURE
LAMELLAE
MATERIALS SCIENCE
national synchrotron light source
organic
Organic electronics
POLYCYCLIC SULFUR HETEROCYCLES
polymer
Polythiophenes
Semiconductors
Semiconductors, organic
Semiconductors, polymer
SLIP
THIN FILMS
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Summary:The structure within crystalline thin films of a high‐carrier‐mobility polythiophene is studied with complementary characterization methods and first‐principles theory. As shown in the figure, two important structural aspects are revealed: 1) a slip in the face‐to‐face π‐π packing, which strongly influences carrier mobility, and 2) the interdigitation of highly trans side chains between vertically adjacent lamellae.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200602651