Harvesting water energy in various forms of water motion, such as evaporation, raindrops,
river flows, ocean waves, and other, is promising to relieve the global energy crisis and …

Water is the cradle of life, but the scarcity of freshwater imposed by the ever-increasing
population and pollution threatens human survival. Harvesting fresh water from the …

Liquid drops sliding on tilted surfaces is an everyday phenomenon and is important for many
industrial applications. Still, it is impossible to predict the drop's sliding velocity. To make a …

Contact between water droplets with hydrophobic surfaces is a common phenomenon at
functional interfaces, and it has been extensively studied. However, quantifying the charge …

Thoroughly researching liquid-solid contact electrification can significantly enhance our
understanding of liquid energy harvesting, chemical processes, and geological …

Triboelectric nanogenerator (TENG) is a potential technology for harvesting water energy
and serving as self‐powered sensors. Among the innovative designs of TENG, a droplet …

Sustainable energies from weather are the most ubiquitous and non-depleted resources.
However, existing devices exploiting weather-dependent energies are sensitive to weather …

As the most common but indispensable matter to humankind, water usually stays in a
macroscopically electric neutral state. Due to its inherent molecular polarity, however, water …

Drop impact on solid surfaces widely occurs both in nature and engineering. In this
Perspective, we review the recent advances in experimental, theoretical, and numerical …

Friction determines whether liquid droplets slide off a solid surface or stick to it. Surface
heterogeneity is generally acknowledged as the major cause of increased contact angle …