Highly twisted tetra-N-phenylbenzidine-phenanthroimidazole based derivatives for blue organic light emitting diodes: Experimental and theoretical investigation

Solution processable multilayer OLEDs were fabricated by employing these fluorophores as emitting dopants in 4,4′-bis(9H-carbazol-9-yl)biphenyl (CBP) host and found to exhibit deep blue electroluminescence with high efficiency.264