The ongoing expedition to harvest ambient renewable energies from the environment by wearable fabric-based nanogenerators is a promising route to sustainably drive the small electronics with unprecedented opportunities in next-generation self-powered devices. Here, we report a simple method to fabricate a washable, breathable and wearable triboelectric nanogenerator that harvests the energy of triboelectricity through an enhanced friction surface area made of the gold nanodot-pattern crafted by electron-beam sputtering on an inexpensive polyurethane surface. The gold deposition which crops-up as regular small islands, under oxygen plasma is subsequently, etched into nanodot-pattern on a polyurethane surface to convert mechanical energy into an electrical signal via in-plane sliding mode with a maximum output of ~2 μW. The nanodot engineering plays an important role to improve the active sliding frictional area, as well as the corresponding output-performance of the triboelectric nanogenerator. To demonstrate the potential applications of our approach, we designed a self-powered wearable device integrated with clothes to harvest different kinds of mechanical energies from the human motion. To elevate the power output-performance, we fabricated waterproof fiber with flutter membrane and quantified triboelectric charge against airflow speed. At mild wind speed, the fabricated triboelectric nanogenerator shows a maximum output of 70 µW. Besides, as an example of practical application, the nanogenerator constructed can produce an improved capacitor charge voltage to drive dozens of light-emitting diodes and apply them to low power consumption devices. This technology is produced in a simple and cost-effective manner and reports an easy way to produce an energy harvesting system based on triboelectric effects using a sustainable and renewable energy source of body motions and air flows. This system is expected to be one of the best green energy sources for portable and wearable electronic devices in the near future.

通过可穿戴的基于织物的纳米发电机从环境中收集环境可再生能源的正在进行中的探索，是一种有希望的途径，以可持续的方式驱动小型电子设备，为下一代自供电设备带来前所未有的机遇。在这里，我们报告了一种简单的方法来制造可洗，透气和可穿戴的摩擦电纳米发电机，该发电机通过增强的摩擦表面积来收集摩擦电的能量，该摩擦表面积是通过在廉价的聚氨酯表面上通过电子束溅射制成的金纳米点图案制成的。随后，将在氧等离子体下长成规则小岛的金沉积物蚀刻到聚氨酯表面的纳米点图案中，以通过面内滑动模式将机械能转换为电信号，最大输出量约为2μW。纳米点工程在改善摩擦滑动纳米发电机的有效滑动摩擦面积以及相应的输出性能方面起着重要作用。为了演示该方法的潜在应用，我们设计了一种与衣服集成在一起的自供电可穿戴设备，以从人体运动中收集各种机械能。为了提高功率输出性能，我们制造了带有颤振膜的防水纤维，并根据气流速度对摩擦电荷进行了量化。在温和的风速下，制造的摩擦电纳米发电机的最大输出为70 µW。此外，作为实际应用的实例，构造的纳米发电机可以产生改善的电容器充电电压，以驱动数十个发光二极管并将其应用于低功耗设备。这项技术以简单且具有成本效益的方式生产，并且报告了一种简单的方法来生产能量收集系统，该系统基于摩擦电效应，使用了人体运动和气流的可持续和可再生能源。在不久的将来，该系统有望成为便携式和可穿戴电子设备的最佳绿色能源之一。