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dc.contributor.authorZhang, Lei
dc.contributor.authorRose, Bradley Daniel
dc.contributor.authorLiu, Yao
dc.contributor.authorNahid, Masrur M.
dc.contributor.authorGann, Eliot
dc.contributor.authorLy, Jack
dc.contributor.authorZhao, Wei
dc.contributor.authorRosa, Stephen J.
dc.contributor.authorRussell, Thomas P.
dc.contributor.authorFacchetti, Antonio
dc.contributor.authorMcNei, Christopher R.
dc.contributor.authorBredas, Jean-Luc
dc.contributor.authorBriseno, Alejandro L.
dc.date.accessioned2017-01-29T13:51:36Z
dc.date.available2017-01-29T13:51:36Z
dc.date.issued2016-11-21
dc.identifier.citationZhang L, Rose BD, Liu Y, Nahid MM, Gann E, et al. (2016) Efficient Naphthalenediimide-Based Hole Semiconducting Polymer with Vinylene Linkers between Donor and Acceptor Units. Chemistry of Materials 28: 8580–8590. Available: http://dx.doi.org/10.1021/acs.chemmater.6b03379.
dc.identifier.issn0897-4756
dc.identifier.issn1520-5002
dc.identifier.doi10.1021/acs.chemmater.6b03379
dc.identifier.urihttp://hdl.handle.net/10754/622756
dc.description.abstractWe demonstrate a new method to reverse the polarity and charge transport behavior of naphthalenediimide (NDI)-based copolymers by inserting a vinylene linker between the donor and acceptor units. The vinylene linkers minimize the intrinsic steric congestion between the NDI and thiophene moieties to prompt backbone planarity. The polymers with vinylene linkers exhibit electron n-channel transport characteristics under vacuum, similar to the benchmark polymer, P(NDI2OD-T2). To our surprise, when the polymers are measured in air, the dominant carrier type switches from n- to p-type and yield hole mobilities up to 0.45 cm(2) s(-1) with hole to electron mobility ratio of three (mu(h)/mu(e), similar to 3), which indicates that the hole density in the active layer can be significantly increased by exposure to air. This increase is consistent with the intrinsic more delocalized nature of the highest occupied molecular orbital of the charged vinylene polymer, as estimated by density functional theory (DFT) calculations, which facilitates hole transport within the polymer chains. This is the first demonstration of an efficient NDI-based hole semiconducting polymer, which will enable new developments in all-polymer solar cells, complementary circuits, and dopable polymers for use in thermoelectrics.
dc.description.sponsorshipL.Z., J. L., S.J.R., and A.L.B thank the Office of Naval Research (N0001471410053) and the National Science Foundation (DMR-1508627) for support of this work; Y.L. and T.P.R. acknowledge the support of the Office of Naval Research under contract N00014-15-1-2244; C.M. acknowledges funding from the Australian Research Council (FT10010075, DP130102616); B.D.R. and J.L.B. acknowledge the support from ONR-Global, Award N62909-15-1-2003, and from competitive research funding of King Abdullah University of Science and Technology. Parts of this research were undertaken on the soft X-ray and SAXS/WAXS beamlines of the Australian Synchrotron. L.Z. thanks the Fundamental Research Funds for the Central Universities (ZY1636).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.chemmater.6b03379
dc.titleEfficient Naphthalenediimide-Based Hole Semiconducting Polymer with Vinylene Linkers between Donor and Acceptor Units
dc.typeArticle
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalChemistry of Materials
dc.contributor.institutionCollege of Energy, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
dc.contributor.institutionDepartment of Polymer Science and Engineering, University of Massachusetts, 120 Governors Drive, Amherst, Massachusetts 01003, United States
dc.contributor.institutionDepartment of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
dc.contributor.institutionAustralian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
dc.contributor.institutionPolyera Corporation, 8045 Lamon Avenue, Skokie, Illinois 60077, United States
kaust.personRose, Bradley Daniel
kaust.personBredas, Jean-Luc
dc.date.published-online2016-11-21
dc.date.published-print2016-12-13


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