Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 130, Issue 40, Pages 13202-13203Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja804872x
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- Cornell Center for Materials Research
- NYSTAR
- NSF
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Increasing the rigidity of the thiophene monomer through the use of an alkyl-substituted core that consists of four fused thiophene rings is shown to be a promising route toward high-performance organic semiconductors. We report on a dialkylated tetrathienoacene copolymer that can be deposited from solution to yield ordered films with a short pi-pi distance of 3.76 angstrom and with a field-effect hole mobility that exceeds 0.3 cm(3)/V.s. This polymer enables simple transistor fabrication at relatively low temperatures, which is particularly important for the realization of large-area, mechanically flexible electronics.
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