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Trap-assisted charge transport at conjugated polymer interfaces
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Chemistry. Linköping University, Faculty of Science & Engineering. University of Brasilia, Brazil; University of Brasilia, Brazil.
University of Brasilia, Brazil.
University of Brasilia, Brazil.
2016 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 644, 121-126 p.Article in journal (Refereed) PublishedText
Abstract [en]

The trap-assisted charge transport in conjugated polymers is numerically investigated in the framework of a one-dimensional tight-binding model. Our findings show that a polaron trapped within an interchain region can be released migrating between the chains at low temperature regimes. Conversely, a trapped bipolaron cannot be released even considering high temperature values. Interestingly, for systems containing more than one polaron, the formation of trapped states is avoided and there is no charge transfer between the chains. Considering more than one bipolaron, the generation of trapped states occurs and a bipolaron can migrates between the chains. (C) 2015 Elsevier B.V. All rights reserved.

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ELSEVIER SCIENCE BV , 2016. Vol. 644, 121-126 p.
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URN: urn:nbn:se:liu:diva-124631DOI: 10.1016/j.cplett.2015.12.006ISI: 000368264500003OAI: diva2:901782

Funding Agencies|Swedish Research Council (VR); Brazilian Research Council CNPq; Brazilian Research Council CAPES; Brazilian Research Council FAPDF

Available from: 2016-02-09 Created: 2016-02-08 Last updated: 2016-02-15

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Ribeiro Junior, Luiz Antonio
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Theoretical ChemistryFaculty of Science & Engineering
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