摘要
为了解决有机柔性压电传感器压电输出较小的问题,设计了一种基于聚偏氟乙烯(PVDF)掺杂氧化石墨烯(GO)的柔性压电传感器。介绍了该传感器的制备方法,对比了有无掺杂GO对传感器压电输出性能的影响,并且分别对它们进行了相关测试。结果表明,掺杂质量分数0.5%的GO后,PVDF中的β相结晶度提升了16.7%,且传感器具有更高的压电输出性能。在120 N的压力作用下,输出电压达到约4.9 V,输出电流达到约189 nA。传感器灵敏度从掺杂前的14.3 mV/N提高到掺杂后的43.1 mV/N。在低频弯曲测试条件下,该柔性传感器依旧有着良好的压电输出性能,为未来可穿戴电子设备中实时运动的人体监测提供了一种新方法。
To solve the problem of small piezoelectric output of organic flexible piezoelectric sensors,a flexible piezoelectric sensor based on polyvinylidene fluoride(PVDF)doped with graphene oxide(GO)was designed.The preparation method of the sensor was introduced.The sensors with and without GO doping were compared to show the influence of GO doping on the piezoelectric output performances of the sensor.And the dependence tests were conducted separately.The results show that the crystallinity ofβ-phase in PVDF increases by 16.7%after doping with mass fraction 0.5%GO,and the sensor has higher piezoelectric output performances.Under a pressure of 120 N,the output voltage reaches about 4.9 V and the output current reaches about 189 nA.The sensor sensitivity is improved from 14.3 mV/N(before doping)to 43.1 mV/N(after doping).The flexible sensor still has good piezoelectric output performance under low-frequency bending test conditions,which provides a new method for human monitoring of real-time motion in future wearable electronic devices.
作者
陈广州
陈刚
潘莉
白智健
陈东生
Chen Guangzhou;Chen Gang;Pan Li;Bai Zhijian;Chen Dongsheng(College of Mathematics and Physics,Shanghai University of Electric Power,Shanghai 200090,China)
出处
《微纳电子技术》
CAS
北大核心
2022年第3期236-241,共6页
Micronanoelectronic Technology
基金
国家自然科学基金资助项目(51502168)。
