基于聚吡咯/蛭石/海藻纤维复合半导体材料的瞬态压阻传感器  

Transient piezoresistive sensors based on tolerable,safe,and semiconductive polypyrrole/vermiculite/alginate frameworks

作　　者：王鹏真 梁俊轩 田维亮 张克伟 夏延致 Pengzhen Wang;Junxuan Liang;Weiliang Tian;Kewei Zhang;Yanzhi Xia(State Key Laboratory of Bio-Fibers and Eco-Textiles,Collaborative Innovation Center for Marine Biomass Fibers,Materials and Textiles of Shandong Province,College of Materials Science and Engineering,Institute of Marine Biobased Materials,Qingdao University,Qingdao 266071,China;Key Laboratory of Chemical Engineering in South Xinjiang,College of Chemistry and Chemical Engineering,Tarim University,Alaer 843300,China)

机构地区：[1]State Key Laboratory of Bio-Fibers and Eco-Textiles,Collaborative Innovation Center for Marine Biomass Fibers,Materials and Textiles of Shandong Province,College of Materials Science and Engineering,Institute of Marine Biobased Materials,Qingdao University,Qingdao 266071,China [2]Key Laboratory of Chemical Engineering in South Xinjiang,College of Chemistry and Chemical Engineering,Tarim University,Alaer 843300,China

出　　处：《Science China Materials》2024年第2期580-587,共8页中国科学（材料科学）（英文版）

基　　金：supported by Taishan Scholar Program of Shandong Province(tsqn201812055,tspd20181208);the National Natural Science Foundation of China(51973099);the Central Government Guiding Funds for Local Science and Technology Development(Z135050009017,2022ZY015);the Open Laboratory of State Key Laboratory of Organic and Inorganic Composites(oic-202301006);the Youth Innovation Team Project of Shandong Province,China(2021KJ018)。

摘　　要：电子皮肤、人机交互和健康监测等领域推动了柔性压力传感器的快速发展.然而,同时满足耐用和瞬态的需求对柔性压力传感器是一个巨大的挑战.本文开发了一种用于柔性瞬态压阻传感器的安全、耐受的聚吡咯/蛭石/海藻酸盐半导体框架.将带负电荷的蛭石纳米片插层到可生物降解的海藻酸盐织物中,进一步用高灵敏度的导电聚吡咯修饰.由此产生的多维框架实现了柔性传感器的稳定性,并且在使用寿命结束后可以在不留下电子垃圾的情况下逐渐降解.所获得的瞬态压阻传感器显示出了快速的响应时间(81/99 ms)和出色的抗疲劳性能.此外,我们开发了一种有效的机器学习模型用于人体动作识别和预测,准确率为100%.本工作为柔性瞬态电子学中有机-无机界面的设计提供了一种有前景的策略,并在基于舒适生物纤维的柔性平台中展现了广阔的应用前景.The rapid development of flexible pressure sensors is driven by the fields of electronic skin,human±machine interaction,and health monitoring.These sensors are urgently required.However,it is challenging to simultaneously meet their durable and transient requirements.In this study,a safe and tolerant polypyrrole/vermiculite/alginate semiconductive framework is developed for flexible transient piezoresistive sensors.Negatively charged vermiculite nanosheets are interlayered into biodegradable alginate fabrics,which are further decorated with conductive polypyrrole.The developed multidimensional framework ensures stability for flexible sensors and can be gradually degraded without producing e-waste after completing its service life.The obtained transient piezoresistive sensors exhibit rapid response/recovery time(81/99 ms)and outstanding fatigue resistance properties.Furthermore,an effective machine learning model is developed for human motion recognition and prediction,achieving 100%accuracy.This study provides a promising strategy for organic±inorganic interface design in flexible transient electronics and shows broad application prospects in flexible platforms based on comfortable biofibers.

关 键 词：piezoresistive sensors transient electronics machine learning tolerable hybrids 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TB33[自动化与计算机技术—控制科学与工程]