Tuning carrier transport properties of thienoisoindigo-based copolymers by loading fluorine atoms onto the diarylethylene-based electron-donating units

	Tuning carrier transport properties of thienoisoindigo-based copolymers by loading fluorine atoms onto the diarylethylene-based electron-donating units
	Zhang, Weifeng 1; Shi, Keli 1,2; Wei, Congyuan 1,2; Zhou, Yankai 3; Wang, Liping 3; Yu, Gui 1,2
刊名	POLYMER
	2017-12-06
卷号	132 页码:12-22
关键词	Fluorine Atoms Thienoisoindigos Field-effect Transistors
英文摘要	Herein, we demonstrate an effective fine-tuning of carrier transport properties in polymer semiconductors by loading fluorine atoms on polymeric pi-systems. To a thienoisoindigo-based conjugated backbones, we introduced dithiophenethene, difluorodithiophenethene, difluorodiphenylethene, and tetrafluorodiphenylethene units affording D-A copolymers, PTIDTE, PTIFDTE, PTIDFPE, and PTITFPE, respectively. PTIDTE and PTIDFPE exhibited unipolar p-channel transport properties with mobilities of 0.24 and 0.11 cm(2) V-1 s(-1), respectively, whereas PTIFDTE and PTITFPE afforded ambipolar transport properties with the highest hole/electron mobilities of 0.072/0.017 cm(2) V-1 s(-1) and 0.017/0.0034 cm(2) V-1 s(-1), respectively. Thin film microstructure studies (AFM and 2D-GIXRD) suggest that more ordered lamellar and predominantly edge-on molecular packing mode formed in the PTIFDTE and PTITFPE thin films though they own inferior surface morphologies. The thienoisoindigo-based polymers' backbone conformations were purposed to interpret their different molecular packing mode in solid state, revealing that single conjugated backbone conformations are much easier to form for PTIFDTE and PTITFPE. (c) 2017 Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38330]
专题	化学研究所_有机固体实验室
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Organ Solids Lab,CAS Res Educ Ctr Excellence Mol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Weifeng,Shi, Keli,Wei, Congyuan,et al. Tuning carrier transport properties of thienoisoindigo-based copolymers by loading fluorine atoms onto the diarylethylene-based electron-donating units[J]. POLYMER,2017,132:12-22.
APA	Zhang, Weifeng,Shi, Keli,Wei, Congyuan,Zhou, Yankai,Wang, Liping,&Yu, Gui.(2017).Tuning carrier transport properties of thienoisoindigo-based copolymers by loading fluorine atoms onto the diarylethylene-based electron-donating units.POLYMER,132,12-22.
MLA	Zhang, Weifeng,et al."Tuning carrier transport properties of thienoisoindigo-based copolymers by loading fluorine atoms onto the diarylethylene-based electron-donating units".POLYMER 132(2017):12-22.