具有高响应性的柔性自供电氧化锌薄膜紫外线传感器。
Flexible Self-Powered ZnO Film UV Sensor with a High Response.
作者信息
Xu Qi, Cheng Li, Meng Leixin, Wang Zhe, Bai Suo, Tian Xiaoqiang, Jia Xiaofeng, Qin Yong
机构信息
Institute of Nanoscience and Nanotechnology, School of Physical Science and Technology , Lanzhou University , Lanzhou 730000 , China.
School of Advanced Materials and Nanotechnology , Xidian University , Xi'an 710071 , China.
出版信息
ACS Appl Mater Interfaces. 2019 Jul 24;11(29):26127-26133. doi: 10.1021/acsami.9b09264. Epub 2019 Jul 8.
Response (on/off ratio) is one of the key parameters of ultraviolet (UV) sensors. In this paper, a kind of highly sensitive ZnO UV sensor with highly increased on/off current ratio was designed and developed. Under a weak UV intensity of 0.1 mW/cm, this ultrathin ZnO film-based UV sensor has an on/off current ratio of 1.3 × 10 which is 3 times higher than the record value for ZnO-based UV sensors. In addition, it shows good flexibility and stable UV detection property during the bending process. When bending the sensor to a radius of curvature of about 18.5 mm, the sensor also shows high UV detection performance.
响应（开/关比）是紫外线（UV）传感器的关键参数之一。本文设计并开发了一种具有大幅提高的开/关电流比的高灵敏度ZnO紫外线传感器。在0.1 mW/cm的弱紫外线强度下，这种基于超薄ZnO薄膜的紫外线传感器的开/关电流比为1.3×10，比基于ZnO的紫外线传感器的记录值高出3倍。此外，它在弯曲过程中表现出良好的柔韧性和稳定的紫外线检测性能。当将传感器弯曲到约18.5 mm的曲率半径时，该传感器仍显示出高紫外线检测性能。
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