Blade-Coated Porous 3D Carbon Composite Electrodes Coupled with Multiscale Interfaces for Highly Sensitive All-Paper Pressure Sensors  

作　　者：Bowen Zheng Ruisheng Guo Xiaoqiang Dou Yueqing Fu Bingjun Yang Xuqing Liu Feng Zhou 

机构地区：[1]State Key Laboratory of Solidification Processing,Center of Advanced Lubrication and Seal Materials,School of Materials Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,People’s Republic of China [2]Research Center of Resource Chemistry and Energy Materials,State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese of Academy of Sciences,Lanzhou 730000,People’s Republic of China [3]State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,People’s Republic of China [4]Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai,Yantai 264006,People’s Republic of China

出　　处：《Nano-Micro Letters》2024年第12期217-232,共16页纳微快报（英文版）

基　　金：support by the Science Fund of Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai(AMGM2021A03);the"Special Lubrication and Sealing for Aerospace"Shaanxi Provincial Science and Technology Innovation Team(2024RS-CXTD-63);the Xianyang2023 Key Research and Development Plan(L2023-ZDYF-QYCX-009);the World First Class University and First Class Academic Discipline Construction Funding 2023(0604024GH0201332,0604024SH0201332).

摘　　要：Flexible and wearable pressure sensors hold immense promise for health monitoring,covering disease detection and postoperative rehabilitation.Developing pressure sensors with high sensitivity,wide detection range,and cost-effectiveness is paramount.By leveraging paper for its sustainability,biocompatibility,and inherent porous structure,herein,a solution-processed all-paper resistive pressure sensor is designed with outstanding performance.A ternary composite paste,comprising a compressible 3D carbon skeleton,conductive polymer poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate),and cohesive carbon nanotubes,is blade-coated on paper and naturally dried to form the porous composite electrode with hierachical micro-and nano-structured surface.Combined with screen-printed Cu electrodes in submillimeter finger widths on rough paper,this creates a multiscale hierarchical contact interface between electrodes,significantly enhancing sensitivity(1014 kPa-1)and expanding the detection range(up to 300 kPa)of as-resulted all-paper pressure sensor with low detection limit and power consumption.Its versatility ranges from subtle wrist pulses,robust finger taps,to large-area spatial force detection,highlighting its intricate submillimetermicrometer-nanometer hierarchical interface and nanometer porosity in the composite electrode.Ultimately,this all-paper resistive pressure sensor,with its superior sensing capabilities,large-scale fabrication potential,and cost-effectiveness,paves the way for next-generation wearable electronics,ushering in an era of advanced,sustainable technological solutions.

关 键 词：Micro-and nano-structures PEDOT:PSS Flexible pressure sensors Health monitoring Multiscale interfaces 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]