23.08.2024 New publication in the Journal of Physical Chemistry
Organic semiconductors are promising candidates for opto-electronic applications because their optical properties can be tuned over a broad range, either chemically or via the packing of the molecular building blocks. However, it is not easy to understand the dynamics of optically excited populations and the effect of nanomorphology. The present study performed in collaboration with the group of Prof. Frank Schreiber (Tübingen) systematically explores the excited state dynamics by combining structural and time-resolved optical studies of molecular mixtures comprised of anthradithiophene and different concentrations of neutral spacer molecules. It is found that both the mesostructure, as well as temperature have a strong influence on competing singlet exciton fission and the formation of self-trapped excimers, both relevant kinetic processes for device applications.
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