V-shaped donor-acceptor organic emitters. A new approach towards efficient TADF OLED devices.
Wojciech DerkowskiDharmandra KumarTomasz GryberJakub WagnerMaja MorawiakMichał Andrzej KochmanAdam KubasPrzemysław DataMarcin LindnerPublished in: Chemical communications (Cambridge, England) (2023)
We report the synthesis and characterization of a series of donor-acceptor TADF emitters with a new architecture, where the donor moiety and the dibenzazepine-based acceptor moiety are separated by a phenylene linker in a V-shaped spatial arrangement. Such spatial separation and electronic decoupling between the donor and the acceptor moieties leads to low singlet-triplet energy gaps and favors efficient exciton up-conversion.