首页|Hybrid electromechanical properties of hetero-doped and homogeneously bonded dual-mode pressure sensor for indoor body area network node

Hybrid electromechanical properties of hetero-doped and homogeneously bonded dual-mode pressure sensor for indoor body area network node

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Pressure sensors are considerably important for continuous monitoring of human movement and the surrounding environment to construct a caregiving system for the elderly living alone.The challenge for pressure sensors that still remains is combining self-driven,comfort,and multifunctionalization.Herein,an all-in-one conformal pressure sensor(ACPS)based on a homogeneous integrated triboelectric-piezoelectric hybrid sensor is proposed.The ACPS has dual-mode sensing properties due to coupling triboelectrification and piezoelectric effect ensuring a stable response to various external stimulations.Silver-coated glass micro-spheres and polyacrylonitrile were uniformly filleted into the silicone rubber substrate using a hetero-doping method to create a stretchable electrode layer with flexible conformal characteristics and a piezoelectric layer with excellent piezoelectric properties,respectively.Meanwhile,the triboelectric layer was fabricated using the same silicone rubber,allowing ACPS to be homogeneously bonded into an all-in-one structure with reli-able durability.This allowed various functional layers to have outstanding interface characteristics and thus improve the electrical transmission effect.The developed ACPS had outstanding sensitivity(1.04 V/104 Pa),high linearity(about 0.984),a wide measurement range(10-700 kPa),and can accurately and continuously distinguish multiple movements.Furthermore,using a homemade signal processing circuit,ACPSs can be deployed in the human body and the room as indoor body area network nodes.When successfully applied to the remote tracking of daily dynamic home life and the remote operation of small electrical equipment,these ACPSs can achieve real-time caregiving for the elderly living alone.As an application area desperately needed by society,this study envisions a caregiving system for the elderly living alone without violating personal privacy.

dual-mode pressure sensorhomogeneous bondingall-in-one structureindoor body area net-work nodeelderly caregiving microsystem

Junbin YU、Shuai XIAN、Jinbiao MU、Min WANG、Yin WANG、Xiaojuan HOU、Le ZHANG、Jian HE、Jiliang MU、Xiujian CHOU

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Science and Technology on Electronic Test and Measurement Laboratory,North University of China,Taiyuan 030051,China

Sichuan Aerospace Fenghuo Servo Control Technology Corporation,Chengdu 610000,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Program of Shanxi ProvinceFundamental Research Program of Shanxi ProvinceChina Postdoctoral Science FoundationChina Postdoctoral Science FoundationShanxi"1331 Project"Key Subject ConstructionYoung Academic Leaders Project of North University of China

62101513621714145217555451975542201901D111146202103021241702022TQ02302022M7123241331KSC11045501

2024

10.1007/s11432-023-3801-1

中国科学:信息科学(英文版)
中国科学院

中国科学:信息科学(英文版)

CSTPCDEI
影响因子：0.715
ISSN：1674-733X
年,卷(期)：2024.67(1)
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