Enhanced light extraction of GaN-based light-emitting diodes with periodic textured SiO2 on Al-doped ZnO transparent conductive layer
Zhao Yu1, 2, †, , Fan Bingfeng1, †, , Chen Yiting1, Zhuo Yi1, Pang Zhoujun2, Liu Zhen2, Wang Gang1, ‡,
       

The voltage–current–light output power (VIL) curves of conventional LEDs and surface patterned LEDs.