Liu, S. W.Divayana, Y.Sun, X. W.Wang, Y.Leck, K. S.Demir, Hilmi Volkan2015-07-282015-07-2820111094-4087http://hdl.handle.net/11693/12204We fabricated and demonstrated improved organic light emitting diodes (OLEDs) in a thin film architecture of indium tin oxide (ITO)/molybdenum trioxide (MoO3) (20 nm)/ N,N'-Di(naphth-2-yl)-N,N'-diphenyl-benzidine (NPB) (50 nm)/tris-(8-hydroxyquinoline) (Alq(3)) (70 nm)/Mg:Ag (200 nm) using an oblique angle deposition technique by which MoO3 was deposited at oblique angles (theta) with respect to the surface normal. It was found that, without sacrificing the power efficiency of the device, the device current efficiency and external quantum efficiency were significantly enhanced at an oblique deposition angle of theta = 60 degrees for MoO3. (C) 2011 Optical Society of AmericaEnglishIndium Tin OxideElectroluminescent DevicesMolybdenum TrioxideInjecting LayerDriving VoltageHole InjectionStabilitySurfaceEfficiencyInterfaceArticle10.1364/OE.19.004513