银纳米线基柔性应变传感器气溶胶喷射打印制备及性能  

Aerosol Jet Printing and Performance of Silver Nanowire-Based Flexible Strain Sensors

作　　者：高晗 顾锋 Gao Han;Gu Feng(International Institute for Innovation,Jiangxi University of Science and Technology,Nanchang 330013,China)

机构地区：[1]江西理工大学国际创新研究院,南昌330013

出　　处：《微纳电子技术》2024年第6期68-74,共7页Micronanoelectronic Technology

摘　　要：为开发具有优异传感性能且工艺简单、稳定性好的柔性应变传感器,以实现对人体健康信号的无创监测,以多元醇法制备的银纳米线(AgNW)为原料,利用气溶胶喷射打印(AJP)技术构建了基于致密AgNW的柔性应变传感器,有效增强了界面导电性和机械性能。25层的打印层数使传感器获得了30%的应变范围,对其进行120℃烧结,实现了AgNW的有效搭接,构筑了稳定的导电网络体系,显著提高了传感器的灵敏度和稳定性。所制备的传感器在30%的应变范围内平均灵敏度系数为66.7,具有良好的皮肤贴合性和舒适性,并成功地用于监测手指弯曲信号,经过500次的重复拉伸测试,显示出较为稳定的应变传感性能。In order to develop flexible strain sensors with excellent sensing performance,simple fabrication processes and good stability for non-invasive monitoring of human physiological signals,silver nanowires(AgNWs)prepared through a polyol method were utilized as raw materials,a flexible strain sensor based on dense AgNWs was constructed using aerosol jet printing(AJP)technique,which effectively enhancing the interface conductivity and mechanical properties.The sensor achieves a strain range of 30%through 25 printed layers.After sintering at 120℃,the effective junction of AgNWs was realized,the stable conductive network system was established and the sensitivity and stability of the sensor were significantly improved.The prepared sensor exhibits an average sensitivity coefficient of 66.7 within a strain range of 30%,demonstrating good skin conformability and comfort.And it was successfully used to monitor finger bending signals.After 500 cycles of repetitive stretching tests,the sensor shows a relatively stable strain sensing performance.

关 键 词：柔性 应变传感器 银纳米线(AgNW) 气溶胶喷射打印(AJP)技术 应变性能 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]