电子皮肤
有源矩阵
材料科学
碳纳米管
压力传感器
电压
柔性电子器件
机器人学
薄膜晶体管
光电子学
晶体管
灵活性(工程)
基质(化学分析)
纳米技术
计算机科学
电气工程
人工智能
机械工程
复合材料
机器人
工程类
统计
图层(电子)
数学
作者
Luca Nela,Jianshi Tang,Qing Cao,George S. Tulevski,Shu‐Jen Han
出处
期刊:Nano Letters
[American Chemical Society]
日期:2018-02-14
卷期号:18 (3): 2054-2059
被引量:171
标识
DOI:10.1021/acs.nanolett.8b00063
摘要
Artificial "electronic skin" is of great interest for mimicking the functionality of human skin, such as tactile pressure sensing. Several important performance metrics include mechanical flexibility, operation voltage, sensitivity, and accuracy, as well as response speed. In this Letter, we demonstrate a large-area high-performance flexible pressure sensor built on an active matrix of 16 × 16 carbon nanotube thin-film transistors (CNT TFTs). Made from highly purified solution tubes, the active matrix exhibits superior flexible TFT performance with high mobility and large current density, along with a high device yield of nearly 99% over 4 inch sample area. The fully integrated flexible pressure sensor operates within a small voltage range of 3 V and shows superb performance featuring high spatial resolution of 4 mm, faster response than human skin (<30 ms), and excellent accuracy in sensing complex objects on both flat and curved surfaces. This work may pave the road for future integration of high-performance electronic skin in smart robotics and prosthetic solutions.
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