title: A spray-processable, low bandgap, and ambipolar donor-acceptor conjugated polymer.
abstract: Combining a strong donor, tris(dodecyloxy)phenyl)-dithieno[3,2-b:2',3'-d]pyrrole, with a strong acceptor, 4,8-dithien-2-yl-2lambda(4)delta(2)-benzo[1,2-c;4,5-c']bis[1,2,5]thiadiazole, has yielded the lowest bandgap, soluble, spray-processable polymer to date. The polymer has access to four different redox states and shows ambipolar behavior in OFETs. Multiple techniques, including transmission/absorption spectroscopy on SWCNTs and reflectance spectroscopy on gold were used to accurately estimate the optical bandgap at 0.5-0.6 eV, which correlates well to theoretical calculations.
authors.affiliation: The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, Center for Macromolecular Science and Engineering, University of Florida, Box 117200, Gainesville, Florida 32611, USA.
authors.forename: Timothy T
authors.initials: TT
authors.lastname: Steckler
authors.forename: Xuan
authors.initials: X
authors.lastname: Zhang
authors.forename: Jungseek
authors.initials: J
authors.lastname: Hwang
authors.forename: Ryan
authors.initials: R
authors.lastname: Honeyager
authors.forename: Shino
authors.initials: S
authors.lastname: Ohira
authors.forename: Xiao-Hong
authors.initials: XH
authors.lastname: Zhang
authors.forename: Adrian
authors.initials: A
authors.lastname: Grant
authors.forename: Stefan
authors.initials: S
authors.lastname: Ellinger
authors.forename: Susan A
authors.initials: SA
authors.lastname: Odom
authors.forename: Daniel
authors.initials: D
authors.lastname: Sweat
authors.forename: David B
authors.initials: DB
authors.lastname: Tanner
authors.forename: Andrew G
authors.initials: AG
authors.lastname: Rinzler
authors.forename: Stephen
authors.initials: S
authors.lastname: Barlow
authors.forename: Jean-Luc
authors.initials: JL
authors.lastname: Brédas
authors.forename: Bernard
authors.initials: B
authors.lastname: Kippelen
authors.forename: Seth R
authors.initials: SR
authors.lastname: Marder
authors.forename: John R
authors.initials: JR
authors.lastname: Reynolds