Yang, X.Dev, K.Wang, J.Mutlugün, E.Dang, C.Zhao, Y.Tan, S. T.Sun, X. W.Demir, Hilmi Volkan2016-02-082016-02-0820141092-8081http://hdl.handle.net/11693/27030Date of Conference: 12-16 October 2014Conference Name: Photonics Conference, IEEE 2014We report a QLED with enhanced light outcoupling efficiency by applying a layer of periodic ZnO nanopillar arrays. The resulting QLED reaches the record external quantum efficiency (EQE) of 9.34% in green-emitting QLEDs with a similar device structure.EnglishNanopillarQLEDQuantum dotsZnOEfficiencyLight emitting diodesNanocrystalsNanostructuresPhotonicsSemiconductor quantum dotsZinc oxideExternal quantum efficiencyLight outcouplingLight-extraction efficiencyNano-pillar arraysQuantum-dot light emitting diodesQuantum efficiencyConference Paper10.1109/IPCon.2014.6995486