With the increasing potential of smart clothing, the demand for generating energy directly in the tissue fibers has prompted for increased research in the field of energy harvesters based on wearable nanogenerators. Current challenges remain in the combination of high output performance, functionalization, and importantly wearing comfort. Herein, an all-fiber hybrid piezoelectric-enhanced triboelectric nanogenerator fabricated by electrospinning silk fibroin and poly(vinylidene fluoride) (PVDF) nanofibers on conductive fabrics is presented. Due to the large specific surface area of nanofibers and the extraordinary ability of silk fibroin to donate electrons in triboelectrification, the hybrid nanogenerator shows outstanding electrical performance, with a power density of 310 µW/cm². This novel all-fiber configuration provides all benefits of ordinary fabrics having flexible appearance and good air permeability, and moreover it can be custom embedded in clothes in any desirable size and shape. Furthermore, the fabricated device allows identifying various types of body motion by a correlation between gesture and corresponding electrical signal. As potential application field, we foresee an autonomous wearable fall alert microsystem for elderly people and persons working in high risk areas.

随着智能服装潜力的增加，直接在组织纤维中产生能量的需求促使人们在基于可穿戴纳米发电机的能量收集器领域进行了更多的研究。当前的挑战仍然是高输出性能，功能化和重要的穿着舒适性的结合。在此，提出了一种通过将丝素蛋白和聚偏二氟乙烯（PVDF）纳米纤维静电纺丝到导电织物上而制成的全纤维混合压电增强型摩擦生电纳米发电机。由于纳米纤维的大比表面积和丝纤蛋白在摩擦起电中提供电子的非凡能力，这种混合型纳米发电机具有出色的电性能，功率密度为310 µW / cm ^2。。这种新颖的全纤维结构提供了具有柔韧性外观和良好透气性的普通织物的所有优点，而且可以定制嵌入任何所需尺寸和形状的衣服中。此外，所制造的设备允许通过手势与相应的电信号之间的相关性来识别各种类型的身体运动。作为潜在的应用领域，我们预计将为老年人和高风险地区的人们提供一个自主的可穿戴式跌倒警报微系统。