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High Carrier Mobility Polythiophene Thin Films: Structure Determination by Experiment and Theory
Author(s) -
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.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200602651
Subject(s) - polythiophene , materials science , thin film , nanotechnology , optoelectronics , polymer , conductive polymer , composite material
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.