基于BTO/PAN复合纳米纤维膜的柔性压电纳米发电机  

Flexible Piezoelectric Nanogenerator Based on BTO/PAN Composite Nanofiber Membranes

作　　者：马俊格 李银辉[1] 耿爱森 梁建国 李朋伟[1] Ma Junge;Li Yinhui;Geng Aisen;Liang Jianguo;Li Pengwei(Nano-Energy and Device Research Center,College of Electronic Information and Optical Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学电子信息与光学工程学院纳米能源与器件研究中心,太原030024

出　　处：《微纳电子技术》2024年第9期74-82,共9页Micronanoelectronic Technology

基　　金：国家自然科学基金资助项目(52075361,52302147);山西省科技重大专项(20201102003);山西省青年科学基金(20210302124046);山西省面上科学基金(20210302123156,20210302123157);吕梁市校地合作重点研发专项(2022XDHZ08)。

摘　　要：采用简单的一步水热法合成了钛酸钡纳米颗粒(BTO NP),通过静电纺丝法制备了BTO/聚丙烯腈(PAN)复合纳米纤维膜,并基于该膜制备了柔性复合压电纳米发电机。研究结果表明,随着BTO掺杂质量分数的增加,BTO/PAN柔性复合压电纳米发电机的输出电压先增大后减小。当BTO的质量分数为15%时,BTO/PAN柔性复合压电纳米发电机的输出性能最佳,输出电压可达10.2 V,输出电流可达1.52μA。当负载电阻为12 MΩ时,其最大输出功率约为3.72μW,与纯PAN纳米纤维膜压电纳米发电机相比,输出性能有明显改善。经过5000次循环测试结果表明,BTO/PAN柔性复合压电纳米电机的的输出性能没有明显变化,因此其具有较好的稳定性。同时,该压电纳米发电机能够检测人体的不同状态,为研发高性能和自供电的可穿戴生物电子产品提供了参考。Barium titanate nanoparticles(BTO NPs)were synthesized by a simple one-step hydrothermal method,and BTO/polyacrylonitrile(PAN)composite nanofiber membranes were prepared by electrospinning.A flexible composite piezoelectric nanogenerator was prepared based on the membranes.The research results indicate that with the increase of BTO doping mass fraction,the output voltage of BTO/PAN flexible composite piezoelectric nanogenerator firstly increases and then decreases.When the mass fraction of BTO is 15%,the output performance of BTO/PAN flexible composite piezoelectric nanogenerator is optimal,with an output voltage of 10.2 V and an output current of 1.52μA.When the load resistance is 12 MΩ,the maximum output power is about 3.72μW.Compared with pure PAN nanofiber membranes piezoelectric nanogenerator,the output performance is significantly improved.After 5000 cycles of testing,it is found that the output performance of the BTO/PAN flexible composite piezoelectric nanomotor has no obvious change,thus exhibiting good stability.Meanwhile,the piezoelectric nanogenerator can detect different states of the human body,providing a reference for the development of high-performance and self-powered wearable bioelectronic products.

关 键 词：压电纳米发电机 纳米纤维 静电纺丝 纳米颗粒(NP) 聚丙烯腈(PAN) 钛酸钡(BTO) 

分 类 号：TM919[电气工程—电力电子与电力传动] TB33[一般工业技术—材料科学与工程] TB383