Highly π-extended copolymers with diketopyrrolopyrrole moieties for high-performance field-effect transistors.
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.
Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, PR China.
Huajie
H
Chen
Yunlong
Y
Guo
Gui
G
Yu
Yan
Y
Zhao
Ji
J
Zhang
Dong
D
Gao
Hongtao
H
Liu
Yunqi
Y
Liu
D004579:Electron Transport; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry; D013876:Thiophenes / Q000737:chemistry; D014173:Transistors, Electronic
D011108:Polymers; D011758:Pyrroles; D013876:Thiophenes