Nano-arrayed OLEDs: enhanced outcoupling efficiency and suppressed efficiency roll-off.

@article{Hwang2018NanoarrayedOE,
  title={Nano-arrayed OLEDs: enhanced outcoupling efficiency and suppressed efficiency roll-off.},
  author={Ha Hwang and Yong Sub Shim and Junhee Choi and Dong Jun Lee and Jae Geun Kim and Ju S. Lee and Young Wook Park and Byeong Kwon Ju},
  journal={Nanoscale},
  year={2018},
  volume={10 41},
  pages={
          19330-19337
        }
}
Organic light-emitting diodes (OLEDs) with an enhanced outcoupling efficiency and a suppressed efficiency roll-off were fabricated by inserting a nanosize pixel-defining layer (nPDL) that defines the OLED emission region as an array of nanoholes. The outcoupling efficiency of the nano-arrayed OLEDs was increased through the reduced surface plasmon polariton loss caused by the wavy diffraction grating at the metal-organic interface, and their efficiency roll-off was suppressed through the… 
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