Highly sensitive flexible tactile sensors based on microstructured multiwall carbon nanotube arrays

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• 作者：Xiang Li^a ; Wen Huang^a ; ^{uestchw@uestc.edu.cn} ; Guang Yao^a ; Min Gao^a ; Xiongbang Wei^a ; Zhiwei Liu^a ; Hua Zhang^a ; Tianxun Gong^a ; Bin Yu^b ; ^{bin.yu@ieee.org}
• 关键词：Pizeoresistive ; Pressure sensor ; Tactile ; Carbon nanotube ; Sensitivity
• 刊名：Scripta Materialia
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：129
• 期：Complete
• 页码：61-64
• 全文大小：781 K
• 卷排序：129

文摘

This work presents a highly sensitive flexible tactile sensor based on microstructured multi-wall carbon nanotube (MWCNT) arrays with patterned cross-contacted electrodes. The anisotropic microstructures not only empower the sensor with an ultra-high sensitivity of − 9.95 kPa− 1 at low pressure level below 100 Pa, about 100 times higher than that of an unstructured sensor, but also lead to great stability and a fast response time (< 200 ms). The results show that the tactile sensor based on microstructured MWCNT arrays with engineered electrodes is promising for potential future applications in robotics, prosthesis, and a variety of human-machine interface implementations.