Progress in ZnO Homogeneous pn Junction Light Emitting Diode

ZnO is an important Ⅱ-Ⅵ semiconductor for short-wave excitonic optoelectronic applications.To fabricate good quality ZnO homogeneous junction is the key for its application in optoelectronic devices.The reseach progresses in recent years in and abroad are summarized and existing problems of ZnO homogeneous junction with different structures are introduced in detail.Finally,the development trends are prospected.