Flexible organic light-emitting diodes(OLEDs)hold great promise for future bendable display and curved lighting applications.One key challenge of high-performance flexible OLEDs is to develop new flexible transparent conductive electrodes with superior mechanical,electrical and optical properties.Herein,we demonstrate a new strategy to achieve a powerful transparent conductive electrode on plastic substrate that combines a quasi-random nanostructured optical coupling layer and an ultrathin metal alloy conduction layer [1,2].