摘要
柔性压力传感器是柔性可穿戴设备的核心部件,在医疗保健、运动健身、安全生产等领域极具应用潜力。二维材料石墨烯具有高载流子迁移率、超大比表面积和超高机械强度,被视为制备柔性压力传感器的优良敏感材料。然而石墨烯碎片引入晶界或堆叠等缺陷,用纯石墨烯制备柔性压力传感器存在灵敏度低、稳定性差、响应范围窄等问题。将零维银纳米颗粒或一维银纳米线与石墨烯构建复合材料,可有效跨越缺陷或搭接相邻片层,起到"桥梁"作用,石墨烯片层平铺到纳米银导电网络之间,起到"补丁"作用。本文综述了用于柔性电阻式压力传感器的银/石墨烯复合材料制备方法和工艺,并介绍了不同微纳结构的传感器构建方法。
Flexible pressure sensors are the core components of flexible and wearable electronics,which have shown great potential applications in such fields as health care,sports fitness and safety production.Because of the remarkable carrier mobility,high specific surface area and mechanical strength,graphene is considered as an excellent 2D material for flexible pressure sensors.However,due to the grain boundaries and overlap defects between graphene flakes,flexible pressure sensors made by pure graphene have the disadvantages of low sensitivity,poor stability,narrow sensing range,etc.When graphene and 0D silver nanoparticles or 1D silver nanowires were used as composite conductive material,Ag nanostructures can cross the defect and bridge the adjacent graphene sheets.In the meanwhile,graphene sheets are tiled between Ag conductive network and patched it up.This review introduced the preparation of Ag/graphene for flexible pressure sensors and the fabrication of construction with different micro nanostructures.
作者
王志刚
徐琴琴
林润泽
银建中
柳宝林
王启博
WANG Zhigang;XU Qinqin;LIN Runze;YIN Jianzhong;LIU Baolin;WANG Qibo(School of Chemical Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2021年第6期3300-3313,共14页
Chemical Industry and Engineering Progress
基金
国家自然科学基金(21978043,U1662130,21506027)
中央高校基本科研业务费(DUT20JC36)。
关键词
石墨烯
纳米银
柔性压力传感器
复合材料
微纳结构
graphene
nano silver
flexible pressure sensor
composite
micro-nanostructure
