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Issue 2, 2014
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Exciton diffusion in organic photovoltaic cells

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Abstract

Exciton generation, migration, and dissociation are key processes that play a central role in the design and operation of many organic optoelectronic devices. In organic photovoltaic cells, charge generation often occurs only at an interface, forcing the exciton to migrate from the point of photogeneration in order to be dissociated into its constituent charge carriers. Consequently, the design and performance of these devices is strongly impacted by the typically short distance over which excitons are able to move. The ability to engineer materials or device architectures with favorable exciton transport depends strongly on improving our understanding of the governing energy transfer mechanisms and rates. To this end, this review highlights recent efforts to better characterize, understand and ultimately engineer exciton transport.

Graphical abstract: Exciton diffusion in organic photovoltaic cells

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Publication details

The article was received on 19 Jul 2013, accepted on 11 Sep 2013 and first published on 07 Oct 2013


Article type: Review Article
DOI: 10.1039/C3EE42444H
Citation: Energy Environ. Sci., 2014,7, 499-512
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    Exciton diffusion in organic photovoltaic cells

    S. M. Menke and R. J. Holmes, Energy Environ. Sci., 2014, 7, 499
    DOI: 10.1039/C3EE42444H

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