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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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Article information


Submitted
19 Jul 2013
Accepted
11 Sep 2013
First published
07 Oct 2013

Energy Environ. Sci., 2014,7, 499-512
Article type
Review Article

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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