TY - JOUR
T1 - Dithiopheneindenofluorene (TIF) Semiconducting Polymers with Very High Mobility in Field-Effect Transistors
AU - Chen, Hu
AU - Hurhangee, Michael
AU - Nikolka, Mark
AU - Zhang, Weimin
AU - Kirkus, Mindaugas
AU - Neophytou, Marios
AU - Cryer, Samuel J.
AU - Harkin, David
AU - Hayoz, Pascal
AU - Abdi-Jalebi, Mojtaba
AU - McNeill, Christopher R.
AU - Sirringhaus, Henning
AU - McCulloch, Iain
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors thank KAUST and BASF for financial support and
acknowledge EC FP7 Project SC2 (610115) EC H2020 Project
SOLEDLIGHT (643791), and EPSRC Projects EP/G037515/1 and
EP/M005143/1. M.N. and H.S. acknowledge financial support from
the Engineering and Physical Sciences Research Council through a
Programme Grant (EP/M005141/1). M.A.J. gratefully acknowledges
Nava Technology Limited for a Ph.D. scholarship. The authors also
thank Mr. James Fraser for the help of synthesizing several intermediates
and Dr. Aditya Sadhanala for help with PDS measurements. C.R.M.
also acknowledges support from the Australian Research Council
(DP130102616). This research was undertaken in part on the SAXS/
WAXS beamline[26] at the Australian Synchrotron, Victoria, Australia.
PY - 2017/7/21
Y1 - 2017/7/21
N2 - The charge-carrier mobility of organic semiconducting polymers is known
to be enhanced when the energetic disorder of the polymer is minimized.
Fused, planar aromatic ring structures contribute to reducing the polymer
conformational disorder, as demonstrated by polymers containing the
indacenodithiophene (IDT) repeat unit, which have both a low Urbach energy
and a high mobility in thin-film-transistor (TFT) devices. Expanding on this
design motif, copolymers containing the dithiopheneindenofluorene repeat unit
are synthesized, which extends the fused aromatic structure with two additional
phenyl rings, further rigidifying the polymer backbone. A range of copolymers
are prepared and their electrical properties and thin-film morphology evaluated,
with the co-benzothiadiazole polymer having a twofold increase in hole mobility
when compared to the IDT analog, reaching values of almost 3 cm2 V−1 s−1 in
bottom-gate top-contact organic field-effect transistors.
AB - The charge-carrier mobility of organic semiconducting polymers is known
to be enhanced when the energetic disorder of the polymer is minimized.
Fused, planar aromatic ring structures contribute to reducing the polymer
conformational disorder, as demonstrated by polymers containing the
indacenodithiophene (IDT) repeat unit, which have both a low Urbach energy
and a high mobility in thin-film-transistor (TFT) devices. Expanding on this
design motif, copolymers containing the dithiopheneindenofluorene repeat unit
are synthesized, which extends the fused aromatic structure with two additional
phenyl rings, further rigidifying the polymer backbone. A range of copolymers
are prepared and their electrical properties and thin-film morphology evaluated,
with the co-benzothiadiazole polymer having a twofold increase in hole mobility
when compared to the IDT analog, reaching values of almost 3 cm2 V−1 s−1 in
bottom-gate top-contact organic field-effect transistors.
UR - http://hdl.handle.net/10754/625239
UR - http://doi.wiley.com/10.1002/adma.201702523
UR - http://www.scopus.com/inward/record.url?scp=85026649620&partnerID=8YFLogxK
U2 - 10.1002/adma.201702523
DO - 10.1002/adma.201702523
M3 - Article
C2 - 28731227
SN - 0935-9648
VL - 29
SP - 1702523
JO - Advanced Materials
JF - Advanced Materials
IS - 36
ER -