Fast-response,high-sensitivity multi-modal tactile sensors based on PPy/Ti_(3)C_(2)T_(x) films for multifunctional applications  

作　　者：Guangshuai Xi Dongzhi Zhang Mingcong Tang Hao Zhang Yuehang Sun Yubiao Zhang Haolin Cai Hui Xia Dandi Zhou 

机构地区：[1]College of Control Science and Engineering,China University of Petroleum(East China),Qingdao 266580,China

出　　处：《Nano Research》2024年第5期4410-4419,共10页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.51777215);the Special Foundation of the Taishan Scholar Project(No.tsqn202211077);the Shandong Provincial Natural Science Foundation(No.ZR2023ME118);the Natural Science Foundation of Qingdao City(No.23-2-1-219-zyyd-jch).

摘　　要：In recent years,multi-modal flexible tactile sensors have become an important direction in the development of electronic skin because of their excellent sensitivity,flexibility and wearable properties.In this work,a humidity-pressure multi-modal flexible sensor based on polypyrrole(PPy)/Ti_(3)C_(2)T_(x) sensitive film packaged with porous polydimethylsiloxane(PDMS)is investigated by combining the sensitive structure generation mechanism of in situ polymerization to achieve the simultaneous detection of humidity and pressure,which has a sensitivity of 89,113.4Ω/%RH in a large humidity range of 0%-97%RH,and response/recovery time of 2.5/1.9 s.The tactile pressure sensing has a high sensitivity,a fast response of 67/52 ms,and a wide detection limit.The device also has excellent performance in terms of stability and repeatability,making it promising for respiratory pattern and motion detection.This work provides a new solution to address the construction of multi-modal tactile sensors with potential applications in the fields of medical health,epidemic prevention.

关 键 词：multi-modal sensors humidity-pressure tactile sensors resistive sensors Ti3C2Tx human respiratory and motion detection 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]