title: Record high electron mobility of 6.3 cm² V⁻¹ s⁻¹ achieved for polymer semiconductors using a new building block.
abstract: A new electron acceptor building block, 3,6-di(pyridin-2-yl)pyrrolo[3,4-c ]pyrrole-1,4(2H ,5H)-dione (DBPy), is used to construct a donor-acceptor polymer, PDBPyBT. This polymer exhibits a strong self-assembly capability, to form highly crystalline and oriented thin films with a short π-π stacking distance of 0.36 nm. PDBPyBT shows ambipolar charge-transport performance in organic thin-film transistors, reaching a record high electron-mobility value of 6.30 cm(2) V(-1) s(-1).
authors.affiliation: Department of Chemical Engineering, Waterloo Institute for Nanotechnology (WIN), Waterloo, ON, N2L 3G1, Canada.
authors.forename: Bin
authors.initials: B
authors.lastname: Sun
authors.forename: Wei
authors.initials: W
authors.lastname: Hong
authors.forename: Zhuangqing
authors.initials: Z
authors.lastname: Yan
authors.forename: Hany
authors.initials: H
authors.lastname: Aziz
authors.forename: Yuning
authors.initials: Y
authors.lastname: Li
keywords: ambipolar charge transport; electron acceptor; electron mobility; organic thin film transistors; polymer semiconductor