Molecular Engineering of Non-Halogenated Solution-Processable Bithiazole based Electron Transport Polymeric Semiconductors
Type
ArticleAuthors
Fu, BoyiWang, Cheng-Yin
Rose, Bradley Daniel

Jiang, Yundi
Chang, Mincheol
Chu, Ping-Hsun
Yuan, Zhibo
Fuentes-Hernandez, Canek
Bernard, Kippelen
Bredas, Jean-Luc

Collard, David M.
Reichmanis, Elsa
KAUST Department
KAUST Solar Center (KSC)Laboratory for Computational and Theoretical Chemistry of Advanced Materials
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2015-04-13Online Publication Date
2015-04-13Print Publication Date
2015-04-28Permanent link to this record
http://hdl.handle.net/10754/350202
Metadata
Show full item recordAbstract
The electron deficiency and trans planar conformation of bithiazole is potentially beneficial for the electron transport performance of organic semiconductors. However, the incorporation of bithiazole into polymers through a facile synthetic strategy remains a challenge. Herein, 2,2’-bithiazole was synthesized in one step and copolymerized with dithienyldiketopyrrolopyrrole to afford poly(dithienyldiketopyrrolopyrrole-bithiazole), PDBTz. PDBTz exhibited electron mobility reaching 0.3 cm2V-1s-1 in organic field-effect transistor (OFET) configuration; this contrasts with a recently discussed isoelectronic conjugated polymer comprising an electron rich bithiophene and dithienyldiketopyrrolopyrrole, which displays merely hole transport characteristics. This inversion of charge carrier transport characteristics confirms the significant potential for bithiazole in the development of electron transport semiconducting materials. Branched 5-decylheptacyl side chains were incorporated into PDBTz to enhance polymer solubility, particularly in non-halogenated, more environmentally compatible solvents. PDBTz cast from a range of non-halogenated solvents exhibited film morphologies and field-effect electron mobility similar to those cast from halogenated solvents.Citation
Molecular Engineering of Non-Halogenated Solution-Processable Bithiazole based Electron Transport Polymeric Semiconductors 2015:150401105405000 Chemistry of MaterialsPublisher
American Chemical Society (ACS)Journal
Chemistry of MaterialsAdditional Links
http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.5b00173ae974a485f413a2113503eed53cd6c53
10.1021/acs.chemmater.5b00173