title: Novel conjugated polymers based on dithieno[3,2-b:6,7-b]carbazole for solution processed thin-film transistors.
abstract: Two conjugated polymers (CPs) P-tCzC12 and P-tCzC16 comprising alternating dithieno[3,2-b:6,7-b]carbazole and 4,4'-dihexadecyl-2,2'-bithiophene units have been designed and synthesized. Upon thermal annealing, they can form ordered thin films in which the polymer backbones dominantly adopted an edge-on orientation respective to the substrate with a lamellar spacing of ≈24 Å and a π-stacking distance of ≈3.7 Å. Organic thin-film transistors (OTFTs) were fabricated by solution casting. A hole mobility of 0.39 cm(2)  V(-1) s(-1)  has been demonstrated with P-tCzC16. This value is the highest among the CPs containing heteroacenes larger than 4 rings.
authors: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P. R. China.
authors: Yagang
authors: Y
authors: Chen
authors: Chengfang
authors: C
authors: Liu
authors: Hongkun
authors: H
authors: Tian
authors: Cheng
authors: C
authors: Bao
authors: Xiaojie
authors: X
authors: Zhang
authors: Donghang
authors: D
authors: Yan
authors: Yanhou
authors: Y
authors: Geng
authors: Fosong
authors: F
authors: Wang
mesh_terms: D002227:Carbazoles / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry; D013876:Thiophenes / Q000737:chemistry; D014173:Transistors, Electronic
chemical_list: D002227:Carbazoles; D011108:Polymers; D012996:Solutions; D013876:Thiophenes; C041514:carbazole