Highly π-extended copolymers with diketopyrrolopyrrole moieties for high-performance field-effect transistors.

Chen, Huajie; Guo, Yunlong; Yu, Gui; Zhao, Yan; Zhang, Ji; Gao, Dong; Liu, Hongtao; Liu, Yunqi · Adv Mater · 2012

basic_science · Level V

Where this comes from

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.

Medical subject headings