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dc.contributor.authorNam, Sungho
dc.contributor.authorHahm, Suk Gyu
dc.contributor.authorKhim, Dongyoon
dc.contributor.authorKim, Hwajeong
dc.contributor.authorSajoto, Tissa
dc.contributor.authorRee, Moonhor
dc.contributor.authorMarder, Seth R.
dc.contributor.authorAnthopoulos, Thomas D.
dc.contributor.authorBradley, Donal D.C.
dc.contributor.authorKim, Youngkyoo
dc.date.accessioned2018-04-16T11:27:44Z
dc.date.available2018-04-16T11:27:44Z
dc.date.issued2018-03-23
dc.identifier.citationNam S, Hahm SG, Khim D, Kim H, Sajoto T, et al. (2018) Pronounced Side Chain Effects in Triple Bond-Conjugated Polymers Containing Naphthalene Diimides for n-Channel Organic Field-Effect Transistors. ACS Applied Materials & Interfaces. Available: http://dx.doi.org/10.1021/acsami.8b01196.
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.doi10.1021/acsami.8b01196
dc.identifier.urihttp://hdl.handle.net/10754/627534
dc.description.abstractThree triple bond-conjugated naphthalene diimide (NDI) copolymers, poly{[N,N′-bis(2-R1)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-[(2,5-bis(2-R2)-1,4-phenylene)bis(ethyn-2,1-diyl)]} (PNDIR1-R2), were synthesized via Sonogashira coupling polymerization with varying alkyl side chains at the nitrogen atoms of the imide ring and 2,5-positions of the 1,4-diethynylbenzene moiety. Considering their identical polymer backbone structures, the side chains were found to have a strong influence on the surface morphology/nanostructure, thus playing a critical role in charge-transporting properties of the three NDI-based copolymers. Among the polymers, the one with an octyldodecyl (OD) chain at the nitrogen atoms of imide ring and a hexadecyloxy (HO) chain at the 2,5-positions of 1,4-diethynylbenzene, P(NDIOD-HO), exhibited the highest electron mobility of 0.016 cm2 V–1 s–1, as compared to NDI-based copolymers with an ethylhexyl chain at the 2,5-positions of 1,4-diethynylbenzene. The enhanced charge mobility in the P(NDIOD-HO) layers is attributed to the well-aligned nano-fiber-like surface morphology and highly ordered packing structure with a dominant edge-on orientation, thus enabling efficient in-plane charge transport. Our results on the molecular structure–charge transport property relationship in these materials may provide an insight into novel design of n-type conjugated polymers for applications in the organic electronics of the future.
dc.description.sponsorshipThis work was financially supported by grants from the Korean Government (NRF_2016H1D5A1910319, NRF_2017M2A2A4A01071010, NRF_2015R1A2A2A01003743, and Basic Science Research Program_2009-0093819).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/full/10.1021/acsami.8b01196
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/full/10.1021/acsami.8b01196.
dc.subjectchain orientation
dc.subjectfield-effect transistor
dc.subjectnaphthalene diimide
dc.subjectside chain engineering
dc.subjecttriple bond-conjugated
dc.titlePronounced Side Chain Effects in Triple Bond-Conjugated Polymers Containing Naphthalene Diimides for n-Channel Organic Field-Effect Transistors
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalACS Applied Materials & Interfaces
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Physics, Division of Mathematical, Physical and Life Sciences
dc.contributor.institutionOrganic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering
dc.contributor.institutionSchool of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
dc.contributor.institutionDepartment of Chemistry, Division of Advanced Materials Science, Pohang Accelerator Laboratory, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
dc.contributor.institutionCentre for Plastic Electronics, Department of Physics, Blackett Laboratory, Imperial College London, London SW7 2AZ, U.K.
dc.contributor.institutionPriority Research Center, Research Institute of Advanced Energy Technology, Kyungpook National University, Daegu 41566, Republic of Korea
dc.contributor.institutionDepartments of Engineering Science, Division of Mathematical, Physical and Life Sciences, University of Oxford, Oxford OX1 3PD, U.K.
kaust.personAnthopoulos, Thomas D.


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