3D-Structured Stretchable Strain Sensors for Out-of-Plane Force Detection

Advanced Materials
Zhiyuan LiuXiaodong Chen

Abstract

Stretchable strain sensors, as the soft mechanical interface, provide the key mechanical information of the systems for healthcare monitoring, rehabilitation assistance, soft exoskeletal devices, and soft robotics. Stretchable strain sensors based on 2D flat film have been widely developed to monitor the in-plane force applied within the plane where the sensor is placed. However, to comprehensively obtain the mechanical feedback, the capability to detect the out-of-plane force, caused by the interaction outside of the plane where the senor is located, is needed. Herein, a 3D-structured stretchable strain sensor is reported to monitor the out-of-plane force by employing 3D printing in conjunction with out-of-plane capillary force-assisted self-pinning of carbon nanotubes. The 3D-structured sensor possesses large stretchability, multistrain detection, and strain-direction recognition by one single sensor. It is demonstrated that out-of-plane forces induced by the air/fluid flow are reliably monitored and intricate flow details are clearly recorded. The development opens up for the exploration of next-generation 3D stretchable sensors for electronic skin and soft robotics.

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Citations

May 21, 2019·Advanced Materials·Binghao Wang, Antonio Facchetti
Dec 6, 2019·Advanced Materials·Ke HeXiaodong Chen
May 10, 2020·Proceedings of the National Academy of Sciences of the United States of America·Levent BekerZhenan Bao
Aug 25, 2020·Advanced Materials·Dianpeng QiYudong Huang
Jan 17, 2020·Advanced Materials·Ting WangXiaodong Chen
Feb 27, 2020·Advanced Materials·Zhichao FanYihui Zhang
Jul 2, 2019·Advanced Materials·Shaowu PanXiaodong Chen
Jan 19, 2021·Advanced Materials·Manpreet KaurWoo Soo Kim
Mar 15, 2019·ACS Applied Materials & Interfaces·Sungwoo ChunChanghyun Pang
Jan 18, 2019·Accounts of Chemical Research·Tie LiTing Zhang
Apr 16, 2020·ACS Applied Materials & Interfaces·Li DingXinglong Gong
Aug 20, 2019·ACS Applied Materials & Interfaces·Longteng YuChwee Teck Lim

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