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

文献类型：期刊论文

作者Su, Songlin1,2; Pan, Guoxing3,4; Xiao, Xuhua1,2; Wang, Qi5,6; Zhang, Fapei1,5
刊名APPLIED PHYSICS LETTERS
出版日期2020-08-10
卷号117
ISSN号0003-6951
DOI10.1063/5.0006234
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.
WOS关键词FIELD-EFFECT TRANSISTORS ; THIN-FILMS ; MOBILITY ; ANISOTROPY ; TEXTURE ; ORDER
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研究方向Physics
语种英语
WOS记录号WOS:000561386800001
出版者AMER INST PHYSICS
资助机构National Natural Science Foundation of China (NSFC) ; National Key Research and Development Program of China
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, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China
4.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China
5.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
6.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, 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).

入库方式： OAI收割

来源：合肥物质科学研究院

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