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, ‡,
       

Schematic illustration of (a)–(e) the critical steps of pattern transfer using AAO as the ICP etching mask.