A general relationship between disorder, aggregation and charge transport in conjugated polymers

Handle URI:
http://hdl.handle.net/10754/597277
Title:
A general relationship between disorder, aggregation and charge transport in conjugated polymers
Authors:
Noriega, Rodrigo; Rivnay, Jonathan; Vandewal, Koen; Koch, Felix P. V.; Stingelin, Natalie; Smith, Paul; Toney, Michael F.; Salleo, Alberto
Abstract:
Conjugated polymer chains have many degrees of conformational freedom and interact weakly with each other, resulting in complex microstructures in the solid state. Understanding charge transport in such systems, which have amorphous and ordered phases exhibiting varying degrees of order, has proved difficult owing to the contribution of electronic processes at various length scales. The growing technological appeal of these semiconductors makes such fundamental knowledge extremely important for materials and process design. We propose a unified model of how charge carriers travel in conjugated polymer films. We show that in high-molecular-weight semiconducting polymers the limiting charge transport step is trapping caused by lattice disorder, and that short-range intermolecular aggregation is sufficient for efficient long-range charge transport. This generalization explains the seemingly contradicting high performance of recently reported, poorly ordered polymers and suggests molecular design strategies to further improve the performance of future generations of organic electronic materials. © 2013 Macmillan Publishers Limited. All rights reserved.
Citation:
Noriega R, Rivnay J, Vandewal K, Koch FPV, Stingelin N, et al. (2013) A general relationship between disorder, aggregation and charge transport in conjugated polymers. Nat Mater 12: 1038–1044. Available: http://dx.doi.org/10.1038/NMAT3722.
Publisher:
Springer Nature
Journal:
Nature Materials
KAUST Grant Number:
KUS-C1-015-21
Issue Date:
4-Aug-2013
DOI:
10.1038/NMAT3722
PubMed ID:
23913173
Type:
Article
ISSN:
1476-1122; 1476-4660
Sponsors:
We thank G. Rumbles for his comments in the preparation of this manuscript. We gratefully thank A. Facchetti and Z. Chen (Polyera, Skokie, IL), and I. McCulloch and M. Heeney (Imperial College, London) for supplying materials (P[NDI2OD-T2], P3HT, and PBTTT). This work is supported by the Center for Advanced Molecular Photovoltaics Award No. KUS-C1-015-21 made by King Abdullah University of Science and Technology (KAUST) (R.N., J.R., K. V., A. S.), and NSF (J.R., A. S.). N.S. acknowledges support by a European Research Council (ERC) Starting Independent Researcher Fellowship under the grant agreement No. 279587. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the US Department of Energy, Office of Basic Energy Sciences.
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Full metadata record

DC FieldValue Language
dc.contributor.authorNoriega, Rodrigoen
dc.contributor.authorRivnay, Jonathanen
dc.contributor.authorVandewal, Koenen
dc.contributor.authorKoch, Felix P. V.en
dc.contributor.authorStingelin, Natalieen
dc.contributor.authorSmith, Paulen
dc.contributor.authorToney, Michael F.en
dc.contributor.authorSalleo, Albertoen
dc.date.accessioned2016-02-25T12:29:38Zen
dc.date.available2016-02-25T12:29:38Zen
dc.date.issued2013-08-04en
dc.identifier.citationNoriega R, Rivnay J, Vandewal K, Koch FPV, Stingelin N, et al. (2013) A general relationship between disorder, aggregation and charge transport in conjugated polymers. Nat Mater 12: 1038–1044. Available: http://dx.doi.org/10.1038/NMAT3722.en
dc.identifier.issn1476-1122en
dc.identifier.issn1476-4660en
dc.identifier.pmid23913173en
dc.identifier.doi10.1038/NMAT3722en
dc.identifier.urihttp://hdl.handle.net/10754/597277en
dc.description.abstractConjugated polymer chains have many degrees of conformational freedom and interact weakly with each other, resulting in complex microstructures in the solid state. Understanding charge transport in such systems, which have amorphous and ordered phases exhibiting varying degrees of order, has proved difficult owing to the contribution of electronic processes at various length scales. The growing technological appeal of these semiconductors makes such fundamental knowledge extremely important for materials and process design. We propose a unified model of how charge carriers travel in conjugated polymer films. We show that in high-molecular-weight semiconducting polymers the limiting charge transport step is trapping caused by lattice disorder, and that short-range intermolecular aggregation is sufficient for efficient long-range charge transport. This generalization explains the seemingly contradicting high performance of recently reported, poorly ordered polymers and suggests molecular design strategies to further improve the performance of future generations of organic electronic materials. © 2013 Macmillan Publishers Limited. All rights reserved.en
dc.description.sponsorshipWe thank G. Rumbles for his comments in the preparation of this manuscript. We gratefully thank A. Facchetti and Z. Chen (Polyera, Skokie, IL), and I. McCulloch and M. Heeney (Imperial College, London) for supplying materials (P[NDI2OD-T2], P3HT, and PBTTT). This work is supported by the Center for Advanced Molecular Photovoltaics Award No. KUS-C1-015-21 made by King Abdullah University of Science and Technology (KAUST) (R.N., J.R., K. V., A. S.), and NSF (J.R., A. S.). N.S. acknowledges support by a European Research Council (ERC) Starting Independent Researcher Fellowship under the grant agreement No. 279587. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the US Department of Energy, Office of Basic Energy Sciences.en
dc.publisherSpringer Natureen
dc.titleA general relationship between disorder, aggregation and charge transport in conjugated polymersen
dc.typeArticleen
dc.identifier.journalNature Materialsen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
dc.contributor.institutionDepartment of Materials Science and Engineering, Stanford, CA 94305, United Statesen
dc.contributor.institutionEidgenossische Technische Hochschule Zurich, Zurich, Switzerlanden
dc.contributor.institutionImperial College London, London, United Kingdomen
dc.contributor.institutionStanford Synchrotron Radiation Laboratory, Menlo Park, United Statesen
dc.contributor.institutionUC Berkeley, Berkeley, United Statesen
dc.contributor.institutionMines ParisTech, Paris, Franceen
kaust.grant.numberKUS-C1-015-21en
kaust.grant.fundedcenterCenter for Advanced Molecular Photovoltaics (CAMP)en

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