Light extraction from organic light-emitting diodes enhanced by spontaneously formed buckles

  title={Light extraction from organic light-emitting diodes enhanced by spontaneously formed buckles},
  author={Won Hoe Koo and Soon Moon Jeong and Fumito Araoka and Ken Ishikawa and Suzushi Nishimura and Takehiro Toyooka and Hideo Takezoe},
  journal={Nature Photonics},
Organic light-emitting diodes featuring layers with a spontaneously formed buckled geometry are demonstrated to offer at least a twofold improvement in light extraction efficiency across the entire visible spectrum. 
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