Fig. 3: Performance of optimized blue TADF OLEDs and efficiency roll-off. | Nature Communications

Fig. 3: Performance of optimized blue TADF OLEDs and efficiency roll-off.

From: High efficiency blue organic light-emitting diodes with below-bandgap electroluminescence

Fig. 3: Performance of optimized blue TADF OLEDs and efficiency roll-off.The alternative text for this image may have been generated using AI.

a The energy-level diagram of the layers sequence in the blue TADF OLED device architecture considering vacuum level alignment before contact. Besides HOMO and LUMO energies of organic layers, the triplet energy of the emitter, host, and interlayer materials are also presented. b Photograph of a working OLED pixel with an active area of 25 mm2 and c electroluminescence spectrum of the same device. d Current density–luminance–voltage characteristics, e current and power efficiency vs. luminance, and f EQE vs. luminance characteristics for the OLED.

Back to article page