Solution-processed white OLEDs with power efficiency over 90 lm W−1 by triplet exciton management with a high triplet energy level interfacial exciplex host and a high reverse intersystem crossing rate blue TADF emitter

Power-efficient solution-processed TADF/phosphorescence hybrid and all-TADF white organic light-emitting diodes (WOLEDs) are developed by triplet exciton management, which exhibit state-of-the-art power efficiencies (PEs) up to 93.5 and 70.4 lm W −1 , respectively.