用于可见光盲型柔性紫外传感器的碳纳米管-金属氧化物混合材料

Pathak Pawan, Park Sanghoon, Cho Hyoung Jin

Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, USA.

Micromachines (Basel). 2020 Apr 1;11(4):368. doi: 10.3390/mi11040368.

Flexible sensors with low fabrication cost, high sensitivity, and good stability are essential for the development of smart devices for wearable electronics, soft robotics, and electronic skins. Herein, we report a nanocomposite material based on carbon nanotube and metal oxide semiconductor for ultraviolet (UV) sensing applications, and its sensing behavior. The sensors were prepared by a screen-printing process under a low-temperature curing condition. The formation of a conducting string node and a sensing node could enhance a UV sensing response, which could be attributed to the uniform mixing of functionalized multi-walled carbon nanotubes and zinc oxide nanoparticles. A fabricated device has shown a fast response time of 1.2 s and a high recovery time of 0.8 s with good mechanical stability.

具有低制造成本、高灵敏度和良好稳定性的柔性传感器对于可穿戴电子设备、软体机器人和电子皮肤等智能设备的发展至关重要。在此，我们报道了一种基于碳纳米管和金属氧化物半导体的用于紫外（UV）传感应用的纳米复合材料及其传感行为。这些传感器是在低温固化条件下通过丝网印刷工艺制备的。导电串节点和传感节点的形成可以增强紫外传感响应，这可归因于功能化多壁碳纳米管和氧化锌纳米颗粒的均匀混合。所制造的器件显示出1.2秒的快速响应时间和0.8秒的高恢复时间，并且具有良好的机械稳定性。