Donor-Acceptor Conjugated Polymers with Dithienocarbazoles as Donor Units: Effect of Structure on Semiconducting Properties

doi:10.1021/ma301864f

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	Donor-Acceptor Conjugated Polymers with Dithienocarbazoles as Donor Units: Effect of Structure on Semiconducting Properties
	Deng, Yunfeng 1,2; Chen, Yagang 1,2; Zhang, Xiaojie 1; Tian, Hongkun 1; Bao, Cheng 1; Yan, Donghang 1; Geng, Yanhou 1; Wang, Fosong 1
刊名	MACROMOLECULES
	2012-11-13
卷号	45 期号:21 页码:8621-8627
ISSN号	0024-9297
DOI	10.1021/ma301864f
英文摘要	A series of donor acceptor (D A) conjugated polymers (CPs) comprising dithieno[2,3-b;7,6-b]carbazole (C1) or dithieno[3,2b;6,7-b]carbazole (C2) as D unit and thienopyrroledione (TPD), isoindigo (IID), or diketopyrrolopyrrole (DPP) as A unit were synthesized, and their semiconducting properties were investigated with organic field-effect transistors (OFETs). Because of different bonding geometry of Cl and C2, the CPs based on these isomeric D units have distinct backbone conformation. The CPs based on C1 unit and all three A units show strong backbone curvature. In consequence, these polymers all formed amorphous films and exhibited low OFET mobility in the level of 10(-3) cm(2)/(V s). P(TPD-C2) and P(DPP-C2), which comprise C2 and TPD or DPP, both display pseudo-straight-shaped backbones and formed ordered films with the polymer backbones adopting edge on orientation respective to the substrates. Accordingly, P(TPD-C2) and P(DPP-C2) exhibited the highest mobility of 0.31 and 1.36 cm(2)/(V s), respectively. However, P(IID-C2) could only form amorphous films probably owing to its highly stiff backbone, leading to a moderate OFET mobility (2.96 x 10(-2) cm(2)/(v s)). This implies that large fused aromatics are promising building blocks for high mobility D A CPs when polymer backbone conformation and rigidity are appropriately manipulated.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000311245200013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/49573]
专题	中国科学院化学研究所
通讯作者	Zhang, Xiaojie
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Deng, Yunfeng,Chen, Yagang,Zhang, Xiaojie,et al. Donor-Acceptor Conjugated Polymers with Dithienocarbazoles as Donor Units: Effect of Structure on Semiconducting Properties[J]. MACROMOLECULES,2012,45(21):8621-8627.
APA	Deng, Yunfeng.,Chen, Yagang.,Zhang, Xiaojie.,Tian, Hongkun.,Bao, Cheng.,...&Wang, Fosong.(2012).Donor-Acceptor Conjugated Polymers with Dithienocarbazoles as Donor Units: Effect of Structure on Semiconducting Properties.MACROMOLECULES,45(21),8621-8627.
MLA	Deng, Yunfeng,et al."Donor-Acceptor Conjugated Polymers with Dithienocarbazoles as Donor Units: Effect of Structure on Semiconducting Properties".MACROMOLECULES 45.21(2012):8621-8627.