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Hofmann, Christiane C. ; Lindner, Stefan M. ; Ruppert, Michaela ; Hirsch, Andreas ; Haque, Saif A. ; Thelakkat, Mukundan ; Köhler, Jürgen:
The influence of π-π-stacking on the light-harvesting properties of perylene bisimide antennas that are covalently linked to a [60]fullerene.
In: Physical Chemistry Chemical Physics.
Bd. 12
(2010)
Heft 43
.
- S. 14485-14491.
ISSN 1463-9084
DOI: https://doi.org/10.1039/C0CP01200A
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Abstract
A flexible organic triad consisting of two perylene bisimide antennas covalently linked to a [60]fullerene by flexible spacers has been synthesized and studied by electrochemistry, steady-state and time-resolved spectroscopy. We found that - -stacking of the two antenna subunits has considerable impact on the photophysics of the system and leads to a reduction of the effective light-harvesting efficiency of the assembly. This finding is important for light harvesting in flexible materials based on the dye antenna-fullerene concept.