Red Organic Light-Emitting Diodes with a Non-doping Amorphous Red Emitter

Luminescent Pt(ii) complexes featuring imidazolylidene–pyridylidene and dianionic bipyrazolate: from fundamentals to OLED fabrications

“…those fabricated using phosphor 5 at 8 wt.% and 100 wt.%, presented similar EL profile, indicating that the isopropyl group of 5 exerts a greater effect against the aggregate formations versus complex 4 with smaller ethyl substituent. 35 Alternatively, the slightly blue-shifted emission of device B2 versus B1 might be due to the optical interference induced by changing the recombination zone. 36 As shown in Figure 14 (b) and Table 4 Furthermore, the charge carrier-exciton interaction may also cause the detected quenching, as the carrier transport has imposed strong influence on both carrier recombination and carrier balance.…”

1,8-Naphthalimides for non-doping OLEDs: the tunable emission color from blue, green to red

“…Therefore, there remains much room and challenge for the synthesis of red emissive materials with high efficiency and color purity. More recently, Chen et al [17] developed a non-doping red-emissive molecule [(2,3-bis-N,N-1-naphthylphenylamino)-N-methylmaleimide] with respectable efficiency and brightness.…”

Novel thieno-[3,4-b]-pyrazine derivatives for non-doped red organic light-emitting diodes

“…Relative to green and blue emitting materials, the red emitting materials and OLEDs still lag behind [3]. It is necessary to further improve the performance of red-emitting materials.…”