articleAdvanced MaterialsJun 15, 2012Closed access

Highly π‐Extended Copolymers with Diketopyrrolopyrrole Moieties for High‐Performance Field‐Effect Transistors

Beijing National Laboratory for Molecular Sciences · Chinese Academy of Sciences · +1 more institution

PubMed
Indexed incrossrefpubmed

Abstract

Two donor-acceptor (D-A) copolymer PDVTs based on diketopyrrolopyrole and (E)-2-(2-(thiophen-2-yl)vinyl)thiophene (TVT) units are synthesized for solution-processed field-effect transistors (FETs). The highly π-extended TVT units strengthen the coplanarity of the polymer backbone. FETs based on PDVTs show high mobilities above 2.0 cm(2) V(-1) s(-1) with a current on/off ratio of 10(5)-10(7) , high shelf storage, and operation stability.

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