Abstract Recently, a novel mechanical energy harvesting method named triboelectric nanogenerator (TENG) is reported, and it has aroused great repercussions in the academic fields. But, the complex preparation process still limits its wide application. In this paper, the cotton film was used as the triboelectric material to fabricate a novel wearable TENG (W-TENG). The polytetrafluoroethylene (PTFE) film and cotton film play the role of triboelectric pair. The W-TENG can be used to harvest low-frequency mechanical energy in our environment, especially for human body mechanical energy, and then convert them to electrical energy. In addition, the cotton coated with conductive ink plays the role of conductive material for TENG. The Voc and Isc of W-TENG can reach 556 V and 26 μA, respectively. As for the maximum power density of W-TENG, it can arrive at 0.66 mW/cm2. Also, a combined W-TENG was proposed to improve the electrical output. Moreover, the W-TENG can play the role of human motion sensor for human walking posture monitoring. This will open up a new path for the preparation of high output TENG at low cost, and promote the TENG devices in the field of sports monitoring.

中文翻译：

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用于能量收集器和人体运动传感器的基于 PTFE 和棉花的高输出摩擦纳米发电机

摘要 最近，一种新的机械能收集方法被称为摩擦纳米发电机（TENG），在学术领域引起了很大的反响。但是，复杂的制备过程仍然限制了它的广泛应用。在本文中，棉膜用作摩擦电材料来制造新型可穿戴 TENG（W-TENG）。聚四氟乙烯（PTFE）薄膜和棉薄膜起到摩擦电对的作用。W-TENG可用于收集环境中的低频机械能，尤其是人体机械能，然后将其转换为电能。此外，涂有导电油墨的棉花对TENG起到了导电材料的作用。W-TENG 的 Voc 和 Isc 可以分别达到 556 V 和 26 μA。至于 W-TENG 的最大功率密度，它可以达到 0.66 mW/cm2。此外，还提出了组合 W-TENG 以提高电输出。此外，W-TENG 可以起到人体运动传感器的作用，用于人体行走姿势监测。这将为低成本制备高输出TENG开辟新途径，推动TENG器件在运动监测领域的应用。