PAN/MoS_(2)柔性复合纳米纤维膜的压电传感特性  

Piezoelectric sensing properties of PAN/MoS_(2) flexible composite nanofiber film

作　　者：张恒博 李银辉[2] 李玮栋 高飞[1] 殷荣艳 梁建国 赵鹏[1] 周赟磊 李朋伟[1] 边桂彬 ZHANG Hengbo;LI Yinhui;LI Weidong;GAO Fei;YIN Rongyan;LIANG Jianguo;ZHAO Peng;ZHOU Yunlei;LI Pengwei;BIAN Guibin(College of Electronic Information and Optical Engineering,Taiyuan University of Technology,Taiyuan 030024,China;College of Integrated Circuits,Taiyuan University of Technology,Taiyuan 030024,China;Hangzhou Institute of Technology,Xidian University,Hangzhou 311231,China;Institute of Automation,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]太原理工大学电子信息工程学院,太原030024 [2]太原理工大学集成电路学院,太原030024 [3]西安电子科技大学杭州研究院,杭州311231 [4]中国科学院自动化研究所,北京100190

出　　处：《物理学报》2025年第7期275-288,共14页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:52075361,52205593);山西省科技重大专项(批准号:20201102003);山西省自然科学基金青年科学基金(批准号:20210302124046)、山西省自然科学基金(批准号:20210302123156);吕梁市校地合作重点研发专项(批准号:2022XDHZ08)资助的课题。

摘　　要：柔性压电纳米材料可以将机械能转换为电能为微纳电子设备供电.近年来,随着对压电技术的研究,二硫化钼(MoS_(2))已被报道用于增强复合材料的压电性能.本文采用静电纺丝法制备了聚丙烯腈/MoS_(2) (PAN/MoS_(2))柔性复合纳米纤维膜压电传感器,系统地研究了MoS_(2)纳米片的含量对PAN/MoS_(2)复合纤维膜压电性能的影响.结果表明,当MoS_(2)掺杂质量含量为3.0%时,PAN/MoS_(2)复合纤维膜传感器的开路输出电压达到最大值为4.64 V,短路输出电流为2.69μA,输出功率达到3.46μW,比纯PAN制备的传感器的电压电流分别提高了140%与160%.与纯PAN相比,PAN/MoS_(2)复合纤维膜的压电常数d_(23)提高了4.86倍.本文制备的PAN/MoS_(2)柔性复合纤维膜传感器可以为商用电容充电,电容放电可成功点亮绿色LED,并在无源条件下实时监测自行车轮胎运行状况.PAN/MoS_(2)柔性复合纤维膜传感器在经过10000次循环敲击测试电压输出无明显波动,稳定性良好.PAN/MoS_(2)柔性复合纳米纤维膜传感器具有柔性好、成本低和自供电等特点,有望在可穿戴/便携式电子设备、智能机器人、智能设备等领域具有广阔的应用前景.Flexible piezoelectric materials can convert mechanical energy into electrical energy to power micro/nano electronic devices.In recent years,research into piezoelectric technologies has revealed that molybdenum disulfide(MoS_(2))can improve the piezoelectric properties of composite materials.In this research the fabrication of a PAN/MoS_(2) flexible composite nanofiber film piezoelectric sensor via electrospinning is presented.The influence of MoS_(2) nanosheet content on the piezoelectric performance of the PAN/MoS_(2) composite nanofiber films is systematically investigated,and the morphology and structure of the composite nanofiber films are characterized.The results show that MoS_(2) is uniformly distributed in the composite nanofiber films,and the zigzag conformation of the PAN molecular is enhanced by adding MoS_(2).As the MoS_(2) doping content increases,the performance of the PAN/MoS_(2) composite nanofiber film sensor shows a first-increasing-and-then-decreasing trend,and ultimately reaching a maximum value when the MoS_(2) weight content is 3.0%.When the MoS_(2) doping content increases from 0%to 3.0%,the open-circuit output voltage of the PAN/MoS_(2) composite nanofiber film sensor increases from 1.92 V to 4.64 V,and the short-circuit output current increases from 1.03μA to 2.69μA.At 3.0%MoS_(2) doping,the maximum output power of the PAN/MoS_(2) composite nanofiber film sensor reaches 3.46μW,with an internal resistance of approximately 10 MΩ.The output voltage of the composite nanofiber film sensor increases with the applied external force increasing.At a frequency of 10 Hz,when external forces of 2 N,3 N,4 N,5 N,and 6 N are applied,the sensor output voltages are 2 V,3.4 V,5.9 V,8.7 V,and 10.3 V,respectively.Compared with pure PAN film,the PAN/MoS_(2) composite nanofiber film has a piezoelectric constant d33 increases by 4.86 times.The PAN/MoS_(2) composite nanofiber film sensor can efficiently charge commercial capacitors,and the discharging of capacitors can successfully power a green LED.Additio

关 键 词：聚丙烯腈 二硫化钼 柔性纳米纤维膜 压电传感 

分 类 号：TB383[一般工业技术—材料科学与工程]