This paper demonstrates a novel energy harvesting method utilizing daily humidity fluctuations. Spherical ionic liquid droplets placed on a nanowire array generate electricity through directional capillary flow driven by moisture absorption and desorption. The nanowire array pins the droplet, causing inward or outward flow depending on humidity changes, resulting in a continuous voltage output. Experiments show this system can power LEDs and LCD screens, highlighting the potential of ubiquitous humidity fluctuations as a sustainable energy source.
Publisher
Nature Communications
Published On
Mar 11, 2022
Authors
Jiayue Tang, Yuanyuan Zhao, Mi Wang, DianyU Wang, Xuan Yang, Ruiran Hao, Mingzhan Wang, Yanlei Wang, Hongyan He, John H. Xin, Shuang Zheng
