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Adv Mater. 2013 Jul 19;25(27):3689-93. doi: 10.1002/adma.201300641. Epub 2013 Jun 10.

Connecting molecular structure and exciton diffusion length in rubrene derivatives.

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1
Department of Chemical Engineering and Materials Science, University of Minnesota, 151 Amundson Hall, 421 Washington Ave. S.E., Minneapolis, MN 55455, USA.

Abstract

Connecting molecular structure and exciton diffusion length in rubrene derivatives demonstrates how the diffusion length of rubrene can be enhanced through targeted functionalization aiming to enhance self-Förster energy transfer. Functionalization adds steric bulk, forcing the molecules farther apart on average, and leading to increased photoluminescence efficiency. A diffusion length enhancement greater than 50% is realized over unsubstituted rubrene.

KEYWORDS:

energy transfer; exciton diffusion; organic photovoltaic cells; rubrene

PMID:
23754475
DOI:
10.1002/adma.201300641
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