Abstract
Red organic light-emitting diodes (OLEDs) utilizing a novel metalcomplex with a tridentate ligand, salicylidene-o-aminophenolato(8-quinolinoato) aluminium (Al(Saph-q)) as the host material, have beenfabricated. In the OLEDs,N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB)and 4-(dicyanomethylene)-2-(t-butyl)6-methyl-4H-pyran (DCJTB) are usedas the hole-transporting and dopant materials, respectively. Comparedwith the OLEDs using tris(8-quinolinolato) aluminium (Alq3) asthe host material, improved device performance with higher efficiency(0.62 lm/W) has been achieved, in the consideration that developinghost materials is a promising way to achieve excellent red emissionOLEDs.
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