作为一种新兴的高效能源转换装置,提高摩擦电纳米发电机(TENGs)的产量仍然是促进TENGs实际应用的关键方法。本文系统地研究了组分组成的影响,厚度,金属导电层的表面形貌对摩擦电纳米发电机性能的影响。已经确定,这三个因素对TENGs的输出性能有重大影响。在四种常见金属Au中,Pt,Ag,和铜,摩擦电纳米发电机在使用Ag作为导电层时实现其最大输出,在278nm的厚度下观察到最佳性能。具有纳米结构导电层的TENG具有更好的输出,因为纳米结构放大了感应充电区域,从而有效地增强了TENG的性能。特别是,当与摩擦电纳米发电机使用铜箔作为导电层旁边的聚(偏二氟乙烯)和尼龙-11作为共同工作中的摩擦层形成对比时,摩擦电纳米发电机的短路电流增加了2.3倍,当导电层替换为Ag时,最大短路电流达到149μA,增强型摩擦电纳米发电机成功地照亮了1536个商业LED。此外,基于TENG的智能鞋垫结合计步器可以实现运动过程中的信号感知和步数的实时记录。该研究为进一步提高TENG的输出提供了一种简单可靠的新方法。
As an emerging high-efficiency energy conversion device, improving the output of triboelectric nanogenerators (TENGs) is still a key method to promote practical application of TENGs. This paper systematically investigated the influence of component composition, thickness, and surface morphology of the metal conducting layer on the performance of triboelectric nanogenerators. It has been established that these three factors have a significant influence on the output performance of TENGs. Among the four common metals Au, Pt, Ag, and Cu, the triboelectric nanogenerator achieves its maximum output when utilizing Ag as the conducting layer, with optimal performance observed at a thickness of 278 nm. TENGs with nanostructured conducting layers have better output as the nanostructure amplifies the induction charging area, thereby effectively augmenting the performance of TENGs. In particular, when contrasted with a triboelectric nanogenerator utilizing copper foil as the conducting layer alongside poly(vinylidene difluoride) and Nylon-11 as friction layers in the common work, the short-circuit current of the triboelectric nanogenerator increased by 2.3 times, and the maximum short-circuit current reached 149 μA when the conducting layer was replaced with Ag, and the enhanced triboelectric nanogenerator successfully illuminated 1536 commercial LEDs. In addition, the TENG-based smart insoles combined with pedometers can realize signal sensing and the real-time recording of steps during exercise. This research provides a new simple and reliable method to further improve the output of the TENG.