Graphene assisting magnetic alignment of a high-performance semiconducting polymer for improved carrier transport

doi:10.1063/5.0006234

	Graphene assisting magnetic alignment of a high-performance semiconducting polymer for improved carrier transport
	Su, Songlin 5,6; Pan, Guoxing 3,4; Xiao, Xuhua 5,6; Wang, Qi 1,2; Zhang, Fapei 2,6
刊名	APPLIED PHYSICS LETTERS
	2020-08-10
卷号	117
ISSN号	0003-6951
DOI	10.1063/5.0006234
通讯作者	Pan, Guoxing(pangrady@mail.ustc.edu.cn) ; Zhang, Fapei(fzhang@hmfl.ac.cn)
英文摘要	We report the fabrication of large-area highly aligned films of a naphthalene dicarboximide-based copolymer P(NDI2OD-T2) via solvent vapor annealing of as-spun films under a high magnetic field. Structural characterization reveals that the incorporation of a small amount of graphene nanosheets via solution mixing remarkably improves the degree of chain alignment and ordering of the semiconducting polymers. Field-effect transistors based on the magnetically aligned polymer/graphene composites exhibit a dramatic enhancement of electron mobility as well as extraordinarily high mobility anisotropy of 81, compared to pristine P(NDI2OD-T2)-based devices. We further proposed a mechanism to explain the enhancement of molecular orientation and charge transport, which is based on the assembling of polymer aggregates on the pi -plane of graphene to facilitate magnetic alignment.
资助项目	National Natural Science Foundation of China (NSFC)[11774348] ; National Natural Science Foundation of China (NSFC)[U1532156] ; National Key Research and Development Program of China[2016YFA0401801]
WOS关键词	FIELD-EFFECT TRANSISTORS ; THIN-FILMS ; MOBILITY ; ANISOTROPY ; TEXTURE ; ORDER
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000561386800001
资助机构	National Natural Science Foundation of China (NSFC) ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/70558]
专题	中国科学院合肥物质科学研究院
通讯作者	Pan, Guoxing; Zhang, Fapei
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 3.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 4.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China 5.Univ Sci & Technol China, Hefei 230026, Peoples R China 6.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Su, Songlin,Pan, Guoxing,Xiao, Xuhua,et al. Graphene assisting magnetic alignment of a high-performance semiconducting polymer for improved carrier transport[J]. APPLIED PHYSICS LETTERS,2020,117.
APA	Su, Songlin,Pan, Guoxing,Xiao, Xuhua,Wang, Qi,&Zhang, Fapei.(2020).Graphene assisting magnetic alignment of a high-performance semiconducting polymer for improved carrier transport.APPLIED PHYSICS LETTERS,117.
MLA	Su, Songlin,et al."Graphene assisting magnetic alignment of a high-performance semiconducting polymer for improved carrier transport".APPLIED PHYSICS LETTERS 117(2020).