Figure 2. Mode simulation results of exciplex-forming co-host phosphorescent OLEDs with the power coupling ratio predicted using the classical dipole model for bottom emission:

(a) P-polarized intensity (TM mode); (b) s-polarized intensity (TE mode); (c) total intensity with respect to the in-plane wave vector; and (d) power fraction conducted by changing the thickness of the electron transporting layer (EML).