Lower limits for non-radiative recombination loss in organic donor/acceptor complexes
Yun Liu, Zilong Zheng, Veaceslav Coropceanu, Jean‐Luc Brédas, David S. Ginger
Abstract
is nevertheless much faster than predicted by Marcus-Levich-Jortner two-state theory and we conclude that CT-local exciton (LE) hybridization is present. Our findings highlight that it is crucial to evaluate how radiative and non-radiative rates of the LE states individually influence the PLQY of charge-transfer states, rather than solely focusing on the PLQY of the LE. This conclusion will guide material selection in achieving low non-radiative voltage loss in organic solar cells and high luminescence efficiency in organic LEDs.
Topics & Concepts
RecombinationAcceptorRadiative transferMaterials sciencePhotochemistryOptoelectronicsChemistryOpticsPhysicsCondensed matter physicsBiochemistryGeneOrganic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsPhotochemistry and Electron Transfer Studies