摘要：To enhance the piezoelectric performance of piezoelectric polymer thin films in general,hybrid polyvinylidene difluoride(PVDF)and nanosized barium titanate(BaTiO_(3))piezoelectric films were prepared and their piezoelectric performance *** hybrid nanofibers were fabricated via electrospinning at an external voltage of 15 *** nonwoven fabrics were collected using a roller collection device,and their morphological structures were analyzed via scanning electron *** crystal structures of these piezoelectric films were characterized via micro-Raman spectroscopy.β-phase of the composite nanofiber membrane almost increased to twice owing to the addition of BaTiO_(3)*** with pure,electrospun PVDF piezoelectric film,the piezoelectric characteristics of the hybrid piezoelectric films were considerably enhanced because of the additional BaTiO_(3)*** maximum instantaneous open-circuit voltage of the hybrid PVDF-BaTiO_(3)nanofibers film can be high up to 80 *** high-performance hybrid piezoelectric films exhibited notable prospects for applications in wearable electronic textiles.

摘要：Wearable devices have great application potential in the next generation of smart portable electronics,especially in the fields of medical monitoring,soft robotics,artificial intelligence,and human-machine *** flexible strain sensors are key components of wearable ***,existing piezoelectric flexible strain sensors have certain limitations in weak signal monitoring due to their large modulus and low *** solve this problem,the concept of Kirigami(paper-cutting)was introduced in this study to design the sensor *** comparing the Kirigami structures of different basic structures,the serpentine structure was determined as the basic configuration of the *** serpentine structure not only provides excellent tensile properties,but also significantly improves the sensitivity of the sensor,which performs well in monitoring weak *** this basis,the adhesion properties of the flexible sensor were analyzed and tested,and the optimal ratio of the substrate was selected for *** addition,a low-cost and rapid prototyping process for stretchable patches was established in this *** this technology,we prepared the sensor device and tested its ***,we successfully developed a flexible sensor with a sensitivity of 0.128 mV/μɛand verified its feasibility for wrist joint motion monitoring *** result opens up new avenues for the recovery care of tenosynovitis patients after surgery.