Striking the right balance of intermolecular coupling for high-efficiency singlet fission.

ABSTRACT: Singlet fission is a process that splits collective excitations, or excitons, into two with unity efficiency. This exciton splitting process, unique to molecular photophysics, has the potential to considerably improve the efficiency of optoelectronic devices through more efficient light harvesting. While the first step of singlet fission has been characterized in great detail, subsequent steps critical to achieving overall highly-efficient singlet-to-triplet conversion are only just beginning to become well understood. One of the most elementary suggestions, which has yet to be tested, is that an appropriately balanced coupling is necessary to ensure overall highly efficient singlet fission; that is, the coupling needs to be strong enough so that the first step is fast and efficient, yet w

SUBMITTER: Pensack RD 

PROVIDER: S-EPMC6062843 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature