Self‐Powered, Ultrafast, Visible‐Blind UV Detection and Optical Logical Operation based on ZnO/GaN Nanoscale p‐n Junctions

作者：Ya‐Qing Bie, Zhi‐Min Liao, Hongzhou Zhang, Guang‐Ru Li, Yu Ye, Yangbo Zhou, Jun Xu, Zhixin Qin, Lun Dai, Dapeng Yu · 发表于：Advanced Materials · 年份：2010 · DOI：10.1002/adma.201003156 · 被引用次数：437 · 研究领域：ZnO doping and properties、Ga2O3 and related materials、Gas Sensing Nanomaterials and Sensors

Ultrafast-response (20 μs) UV detectors, which are visible-blind and self-powered, in devices where an n-type ZnO nanowire partially lies on a p-type GaN film, are demonstrated. Moreover, a CdSe-nanowire red-light detector powered by a nanoscale ZnO/GaN photovoltaic cell is also demonstrated, which extends the device function to a selective multiwavelength photodetector and shows the function of an optical logical AND gate.