Steering the multiexciton generation in slip-stacked perylene dye array via exciton coupling

ABSTRACT: Dye arrays from dimers up to larger oligomers constitute the functional units of natural light harvesting systems as well as organic photonic and photovoltaic materials. Whilst in the past decades many photophysical studies were devoted to molecular dimers for deriving structure-property relationship to unravel the design principles for ideal optoelectronic materials, they fail to accomplish the subsequent processes of charge carrier generation or the detachment of two triplet species in singlet fission (SF). Here, we present a slip-stacked perylene bisimide trimer, which constitutes a bridge between hitherto studied dimer and solid-state materials, to investigate SF mechanisms. This work showcases multiple pathways towards the multiexciton state through direct or excimer-mediated mechanis

SUBMITTER: Hong Y 

PROVIDER: S-EPMC9345863 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature