Abstract
We study theoretically the optical performance of organic light-emitting diodes (OLEDs) with 2D periodical corrugation at the cathode. We show how emergence of radiative surface plasmon resonances at the 2D corrugated cathode leads to the enhancement of the outcoupling efficiency of the OLED, which is primarily due to the outcoupling of emission generated by vertically oriented emitting excitons in the emission layer. We analyze the outcoupling efficiency of the OLED as a function of geometrical parameters of the corrugation and establish design rules for optimal outcoupling enhancement with the 2D corrugation at the cathode.
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