Performance enhancement of triboelectric nanogenerator based on BaTiO_(3)-incorporated PVDF-HFP nanofibers for self-powered wearable sensors  

作　　者：Tianjie DENG Xi ZHANG Zhuanqing YANG Gang XIANG 

机构地区：[1]College of Physics,Sichuan University,Chengdu 610065,China

出　　处：《Science China(Technological Sciences)》2025年第1期262-269,共8页中国科学(技术科学英文版)

基　　金：supported by National Key Research and Development Program of China(MOST)(Grant No.2022YFA1405100);National Natural Science Foundation of China(NSFC)(Grant No.52172272)。

摘　　要：The triboelectric nanogenerators(TENGs)based on polyvinylidene fluoride(PVDF)have attracted significant attention due to their high energy conversion efficiency and strong flexibility.Indeed,the TENGs with higher electrical performance and stronger mechanical robustness are more desirable.In this context,we design and fabricate TENGs based on nanofiber(NF)layer of Poly(vinylidene fluoridehexafluoropropylene)(PVDF-HFP),a copolymer of PVDF with better mechanical properties,in which the enhancement of dielectric constant and specific surface area is achieved by incorporation of BaTiO_(3) into PVDF-HFP NFs using electrospinning.The results show that the TENGs demonstrates superior electrical performance.The optimized TENG exhibits an open-circuit voltage(VOC)of 432 V,a short-circuit current(ISC)of 44.2μA,and a maximum power density(Pd)of 2.25 W/m^(2).Practical applications of the optimized TENG are also demonstrated,including its use as power source,cylindrical rotating energy harvester and self-powered wearable sensor.The findings give insights into the fabrication,performance and application of the TENGs based on BaTiO_(3)-incorporated PVDF-HFP NFs,offering promising solutions for energy harvesting and diverse applications.

关 键 词：PVDF-HFP BaTiO_(3) dielectric constant triboelectric nanogenerator SELF-POWERED 

分 类 号：TM31[电气工程—电机]