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一维ZnO纳米结构由于具有比表面积大、室温下具有大激子结合能等特点而受到广泛关注.但是如何实现纳米结构的器件一直是目前研究的一个挑战.文章通过水热方法,在玻璃衬底上实现了ZnO纳米线横向生长,并制备出基于ZnO纳米线的金属-半导体-金属紫外探测器.测量结果显示器件在365 nm处探测器的响应度达到5 A/W,并且制备的探测器在空气中对紫外光照具有快速的响应,其上升时间约4 s,下降时间约5 s,这与ZnO纳米线中的氧空位吸附和脱附水分子相关.
One-dimensional ZnO nanostructures have attracted much attention due to their large specific surface area and large exciton binding energy at room temperature, however, how to realize nanostructured devices has been a challenge in current research.According to the hydrothermal method, The ZnO nanowires were grown laterally on the bottom and a ZnO-ZnO-based metal-semiconductor-metal UV detector was fabricated.The measurement results show that the detector responsivity reaches 5 A / W at 365 nm and the prepared detector The device has a fast response to ultraviolet light in air with a rise time of about 4 s and a falling time of about 5 s, which is related to the oxygen vacancy adsorption and desorption of water molecules in ZnO nanowires.