W.H. Lan(藍文厚)(*), C.A. Chen(陳俊安), T.M. Hsieh(謝聰茂), C.Y. Liu, “Barrier Layer Study in Er, N Codoped MgZnO Diode”, Optics & Photonics Taiwan, International Conference (OPTIC) 2019 , Taichung, Taiwan (2019) 0177.