High-performance fluorescent organic electroluminescent devices benefit from sensitization of thermally activated delayed fluorescence

Efficient fluorescent electroluminescent devices were achieved by exploiting a thermally activated fluorescent material (3,5-bis(3,6-di- tert -butyl-9 H -carbazol-9-yl)phenyl)(pyridin-4-yl)methanone (DTCBPy) as a sensitizer.