Fig. 3: OLED demonstration. | Light: Science & Applications

Fig. 3: OLED demonstration.

From: Deep-blue organic light-emitting diodes based on a doublet d–f transition cerium(III) complex with 100% exciton utilization efficiency

Fig. 3

a Frontier orbital energy levels for materials used in OLEDs; the energy levels of Ce-1 were deduced from its ultraviolet photoelectron spectrum and ultraviolet absorption spectrum. b Current density–voltage–luminance traces for the key OLEDs. c Power efficiency–luminance–EQE traces for the key OLEDs. d Maximum EQE histogram of 18 devices with the optimized device structure (average, ~12.4%; highest, 14.0%). e PL spectrum of the TSPO1:CzSi:Ce-1 (0.18:0.72:0.1 in weight ratio, excitation 280 nm) film, and EL spectrum of D2 at the luminance of 100 cd m−2. f Transient EL spectrum of D2

Back to article page