Abstract
The efficient cross coupling between the surface plasmon–polariton (SPP) and microcavity modes was employed in the top-emitting organic light-emitting devices (TOLEDs) to release the trade-off between efficiency and stability by using a periodic corrugated Ag cathode. As the main factors affecting the cross coupling, the thickness and period of the corrugated Ag cathode were optimized to excite the SPP at the two interfaces of the Ag cathode and achieve a matched resonance wavelength between the SPP and the microcavity mode. At the optimal values of the thickness and period, the cross coupling between the SPP and microcavity modes enhanced the light extraction efficiency, and the efficiency of the corrugated TOLEDs was enhanced by 38.6% at the current density of 100 mA cm−2.
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