中国物理B ›› 2013, Vol. 22 ›› Issue (11): 118102-118102.doi: 10.1088/1674-1056/22/11/118102
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
潘跃武a, 任守田b, 曲士良b, 王强b
Pan Yue-Wu (潘跃武)a, Ren Shou-Tian (任守田)b, Qu Shi-Liang (曲士良)b, Wang Qiang (王强)b
摘要: Employing a simple and efficient method of electro-chemical anodization, ZnO nanowire films are fabricated on Zn foil, and an ultraviolet (UV) sensor prototype is formed for investigating the electronic transport through back-to-back double junctions. The UV (365 nm) responses of surface-contacted ZnO film are provided by I–V measurement, along with the current evolution process by on/off of UV illumination. In this paper, the back-to-back metal–seconductor–metal (M–S–M) model is used to explain the electronic transport of a ZnO nanowire film based structure. A thermionic-field electron emission mechanism is employed to fit and explain the as-observed UV sensitive electronic transport properties of ZnO film with surface-modulation by oxygen and water molecular coverage.
中图分类号: (Chemical synthesis methods)