Multiscale Modeling of Charge and Energy Transport in Organic Light-Emitting Diodes and Photovoltaics


Walker, A. B., 2009. Multiscale Modeling of Charge and Energy Transport in Organic Light-Emitting Diodes and Photovoltaics. Proceedings of the IEEE, 97 (9), pp. 1587-1596.

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    Modelling organic devices is an outstanding challenge because device performance is very sensitive to how the molecules are packed and the films are highly disordered. An understanding of charge and exciton (bound electron-hole pair) transport in these materials is important if organic light-emitting diodes are to be exploited in displays, lighting, photovoltaics, transistors, and sensors. This paper discusses methods we have pioneered for predicting charge and exciton transport, in which polymer chains are explicitly modeled and charge and exciton transfer rates are taken from electronic structure theory. Monte Carlo and drift diffusion device models that link device performance with morphology are also covered. The focus here is on polymers, but there is much in common with small molecule organic materials.


    Item Type Articles
    CreatorsWalker, A. B.
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    URLURL Type
    Uncontrolled Keywordsdisplays,diodes,modeling,excitons,charge carrier mobility,plastic films,photovoltaic cells,energy conversion
    DepartmentsFaculty of Science > Physics
    Publisher Statementwalker-97.pdf: Copyright © 2009 IEEE. Reprinted from Proceedings of the IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bath’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
    ID Code15801


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