A gold(iii)–TADF emitter as a sensitizer for high-color-purity and efficient deep-blue solution-processed OLEDs

Herein is described a blue-emitting gold( iii )–TADF complex serving as a sensitizer for SP-OLEDs, in which an MR-TADF emitter is employed as the emissive dopant. The SP-OLEDs attained EQE max of up to 16.6%, high color purity and CIE x,y of (0.14, 0.18).