A Structurally Simple but High‐Performing Donor–Acceptor Polymer for Field‐Effect Transistor Applications

Filip Aniés, Simeng Wang, Thomas Hodsden, Julianna Panidi, Zhuping Fei, Xuechen Jiao, Yi Hang Cherie Wong, Christopher R. McNeill, Thomas D. Anthopoulos, Martin Heeney

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A straightforward synthesis is reported for four structurally simple donor–acceptor conjugated polymers based on an alkylated difluorobenzotriazole and either unsubstituted bithiophene (T2) or thienylvinylthiophene (TVT) co-monomers. Two solubilizing sidechains are investigated in which the position of the branching point is moved away from the conjugated backbone. Optoelectronic measurements and density functional theory calculations show very similar energetic properties between the polymers, with a slightly narrower bandgap for the vinylene incorporating TVT polymers as a result of extended conjugation. Transistor measurements demonstrate that the simplest polymer, containing a readily available 2-decyltetradecyl sidechain with a T2 co-monomer, exhibits the best device performance, with an average saturated mobility of 0.2 cm2 V−1 s−1.
Original languageUndefined/Unknown
Article number2000490
JournalAdvanced Electronic Materials
Volume6
Issue number9
Early online date19 Jul 2020
DOIs
Publication statusPublished - 7 Sept 2020

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