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Visible−Near Infrared Absorbing Dithienylcyclopentadienone−Thiophene Copolymers for Organic Thin-Film Transistors

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Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, and Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095
∥Current address: Harvard University, Department of Chemistry and Chemical Biology, 12 Oxford St., Cambridge, MA 02138.
†Department of Chemistry and Biochemistry, University of California, Santa Barbara.
‡Center for Polymers and Organic Solids, University of California, Santa Barbara.
§Department of Chemistry and Biochemistry, University of California, Los Angeles.
Cite this: J. Am. Chem. Soc. 2008, 130, 49, 16524–16526
Publication Date (Web):November 17, 2008
Copyright © 2008 American Chemical Society

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    Structural design, synthesis, and characterization of a series of organic semiconductors consisting exclusively of dithienylcyclopentadienone subunits within a polythiophene backbone are described as the first example for organic electronic devices. The donor (thiophene)-alt-acceptor (cyclopentadienone) copolymers exhibit a substantial p-carrier mobility in OFET but an unexpected noncorrelation between absorption and photoconductivity.

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    Text giving full experimental details for the synthesis of all new materials as well as the measurements, differential scanning calorimetry (DSC), cyclic voltammograms, XRD patterns, UV−vis absorption spectra, the in situ conductivity measurement, and crystal data tables. This material is available free of charge via the Internet at

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