• Corpus ID: 119353303

Perturbation of Exciton Aggregate Coupling by Optical Excitation in Crystalline Perfluoropentacene Films

  title={Perturbation of Exciton Aggregate Coupling by Optical Excitation in Crystalline Perfluoropentacene Films},
  author={Kolja Kolata and Sabrina Marquardt and Nils W. Rosemann and A A Mager and Anna-Katharina Hansmann and U. Hofer and Robert Berger and Tobias Breuer and G Witte and Suman Chatterjee},
  journal={arXiv: Materials Science},
Carrier multiplication by singlet exciton fission enhances photovoltaic conversion efficiencies in organic solids. This decay of one singlet exciton into two triplet states promises to overcome the Shockley-Queisser limit as up to two electrons may be harvested per absorbed photon. Intermolecular coupling is deemed mandatory for both, singlet exciton fission and a band-like transport. Such a coupling is manifested, $e.g.$, by the Davydov-splitting of the lowest-energy exciton transition in… 
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