Abstract:

A highly bright white organic light-emilting diode(OLED) was realized by using a highly bright blue emitting layer,1,7-diphenyl-4-biphenyl-3,5-dimethyl-1,7-dihydrodipyrazolo[3,4-b;4',3'-e]pyridine(PAP-Ph),together with a 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran(DCM)-doped Alq[tris(8-hydroxyquinolinato) aluminum(Ⅲ)]layer to provide Hie blue,red and green emission for color mixing.