中国科学院重庆绿色智能技术研究院机构知识库

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	A vinyl flanked difluorobenzothiadiazole-dithiophene conjugated polymer for high performance organic field-effect transistors
	Liang, Xianfeng1,2; Sun, Wandong1; Chen, Yanlin1; Tan, Luxi1; Cai, Zhengxu3; Liu, Zitong3; Wang, Lin2; Li, Jing4; Chen, Wei5,6; Dong, Lichun1
	2018-02-21
摘要	Fluorine containing conjugated polymers have been widely applied in high performance organic solar cells, but their use in field-effect transistors is still quite limited. In this work, a conjugated polymer PTFBTV based on difluorobenzothiadiazole (DFBT) and dithiophene was synthesized, utilizing multiple vinylene as linkers. The polymer exhibits a relatively high hole mobility up to 2.0 cm(2) V-1 s(-1) compared with the reported DFBT-oligothiophene based polymers, yet its structural complexity is much simpler. The polymer thin film exhibits a typical 'face on' molecular orientation. A single crystal of its monomer revealed a non-covalent intramolecular contact between fluorine and the neighbouring proton, which strengthens the backbone co-planarity. Meanwhile an intermolecular F...F contact was also observed, which might cause rather scattered lamellar crystallinity for PTFBTV in the solid state.
DOI	10.1039/c7tc05360f
发表期刊	JOURNAL OF MATERIALS CHEMISTRY C
ISSN	2050-7526
卷号	6期号:7页码:1774-1779
收录类别	SCI
WOS记录号	WOS:000425309300019
语种	英语