Even a little delocalization produces large kinetic enhancements of charge-separation efficiency in organic photovoltaics

  title={Even a little delocalization produces large kinetic enhancements of charge-separation efficiency in organic photovoltaics},
  author={Daniel Balzer and Ivan Kassal},
  journal={Science Advances},
In organic photovoltaics, charges can separate efficiently even if their Coulomb attraction is an order of magnitude greater than the available thermal energy. Delocalization has been suggested to explain this fact, because it could increase the initial separation of charges in the charge-transfer (CT) state, reducing their attraction. However, understanding the mechanism requires a kinetic model of delocalized charge separation, which has proven difficult because it involves tracking the… 



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