Facilely prepared layer-by-layer graphene membrane-based pressure sensor with high sensitivity and stability for smart wearable devices

作     者：Tao Liu Caizhen Zhu Wei Wu Kai-Ning Liao Xianjing Gong Qijun Sun Robert K.Y.Li Tao Liu;Caizhen Zhu;Wei Wu;Kai-Ning Liao;Xianjing Gong;Qijun Sun;Robert K.Y.Li

作者机构：Department of Materials Science and EngineeringCity University of Hong KongTat Chee AvenueKowloonHong KongChina Institute of Low-dimensional Materials Genome InitiativeCollege of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518060China National Engineering Research Center of Novel Equipment for Polymer ProcessingKey Laboratory of Polymer Processing Engineering of Ministry of EducationSchool of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou510640China State Key Laboratory of Organic-Inorganic CompositesCollege of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing100029China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第42卷第10期

页      面：241-247页

核心收录：

学科分类：07[理学] 080202[工学-机械电子工程] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0702[理学-物理学] 

基　　金：Financial support from the grant from the City University of Hong Kong(SRG 7004918) South China University of Technology(National Key Research and Development Program of China,No.2016YFB0302000) Shenzhen University(Ten Thousand People’s Scheme,Project No.201,810,090,052) 

主　　题：Graphene membrane Self-assembly High sensitivity Wearable devices Human motions 

摘      要：With the prosperous development of artificial intelligence,medical diagnosis and electronic skins,wearable electronic devices have drawn much attention in our daily *** pressure sensors based on carbon materials with ultrahigh sensitivity,especially in a large pressure range regime are highly required in wearable *** this work,graphene membrane with a layer-by-layer structure has been successfully fabricated via a facile self-assembly and air-drying(SAAD)*** the SAAD process,air-drying the self-assembled graphene hydrogels contributes to the uniform and compact layer structure in the obtained *** to the excellent mechanical and electrical properties of graphene,the pressure sensor constructed by several layers of membranes exhibits high sensitivity(52.36 kPa……-1)and repeatability(short response and recovery time)in the loading pressure range of 0–50 *** with most reported graphene-related pressure sensors,our device shows better sensitivity and wider applied pressure ***’s more,we demonstrate it shows desired results in wearable applications for pulse monitoring,breathing detection as well as different intense motion recording such as walk,run and ***’s hoped that the facilely prepared layer-by-layer graphene membrane-based pressure sensors will have more potential to be used for smart wearable devices in the future.