title: Connecting molecular structure and exciton diffusion length in rubrene derivatives.
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.
authors.affiliation: Department of Chemical Engineering and Materials Science, University of Minnesota, 151 Amundson Hall, 421 Washington Ave. S.E., Minneapolis, MN 55455, USA.
authors.forename: Tyler K
authors.initials: TK
authors.lastname: Mullenbach
authors.forename: Kathryn A
authors.initials: KA
authors.lastname: McGarry
authors.forename: Wade A
authors.initials: WA
authors.lastname: Luhman
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Douglas
authors.forename: Russell J
authors.initials: RJ
authors.lastname: Holmes
keywords: energy transfer; exciton diffusion; organic photovoltaic cells; rubrene