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Improving the Efficiency of Organic Photovoltaic Devices through Interface Engineering

Published online by Cambridge University Press:  31 July 2013

Feilong Liu
Affiliation:
University of Minnesota, Minneapolis, MN 55455, U.S.A. Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A.
Brian K. Crone
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A.
Paul Ruden
Affiliation:
University of Minnesota, Minneapolis, MN 55455, U.S.A. Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A.
Darryl L. Smith
Affiliation:
University of Minnesota, Minneapolis, MN 55455, U.S.A. Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A.
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Abstract

We explore theoretically the effect of incorporating a thin tunnel barrier between the electron and hole transport layers of organic heterostructure photovoltaic devices. The device efficiency can be improved significantly by controlling the rates of microscopic processes associated with exciton dissociation and recombination at the interface between the electron and hole transport layers. The effects of different parameters are examined, and conclusions for organic photovoltaic device design are discussed.

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Articles
Copyright
Copyright © Materials Research Society 2013 

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