A spray-processable, low bandgap, and ambipolar donor-acceptor conjugated polymer.
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.
Steckler
Timothy T
TT
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.
Zhang
Xuan
X
Hwang
Jungseek
J
Honeyager
Ryan
R
Ohira
Shino
S
Zhang
Xiao-Hong
XH
Grant
Adrian
A
Ellinger
Stefan
S
Odom
Susan A
SA
Sweat
Daniel
D
Tanner
David B
DB
Rinzler
Andrew G
AG
Barlow
Stephen
S
Brédas
Jean-Luc
JL
Kippelen
Bernard
B
Marder
Seth R
SR
Reynolds
John R
JR