Graphene-Assisted Epitaxy of Nitrogen Lattice Polarity GaN Films on Non-Polar Sapphire Substrates for Green Light Emitting Diodes - Fang Liu; Zhang, Zhihong; Rong, Xin; Yu, Ye; Tao Wang; Sheng, Bowen; Wei, Jiaqi; Zhou, Siyuan; Yang, Xuelin; Xu, Fujun; others (Advanced Functional Materials, 2020)