International Journal of Photoenergy / 2012 / Article / Fig 4

Research Article

Improvement of Power Efficiency in Phosphorescent White Organic Light-Emitting Diodes Using p-Doped Hole Transport Layer

Figure 4

(a) Current density-voltage ( - ) and (b) luminance-voltage ( - ) characteristics of WOLEDs with different MoO3 doping concentrations. Inset in (b): luminance-current density ( - ) characteristics from the same devices.

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