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【Nano Letters】Collective Electricity Generation over the Kilovolt Level from Water Droplets

时间:2025-04-27来源:国际前沿科学研究院点击:213

Wei Deng,Yufeng Zhu,Kelan Zhang,Yuxuan Yuan,Tao Hu,Xiao Wang,

Jidong Li,Xuemei Li,Zhuhua Zhang,Wanlin Guo,andJun Yin*

Nano Letters(IF:9.6),Published April 24, 2025

Abstract

Collective behavior enables groups of organisms to achieve feats far exceeding individual capability. Inspired by this, we present a novel droplet-based electricity generator that leverages the collective dynamics of multiple water droplets to significantly enhance electrical output, achieving orders of magnitude improvement compared with single-droplet devices. It is revealed that grouped water droplets, although spatially separated, coordinate via charge exchange with a solid surface and external charge transfer. Consequently, the solid surface charge density is significantly enhanced, elevating the charge transfer. This collective effect readily generates peak voltages exceeding one kilovolt, sufficient for air ionization and nitrogen fixation, with potential applications in nutrient production. We anticipate that this collective strategy will significantly advance the design and applications of droplet-based hydrovoltaic devices.



DOI:https://doi.org/10.1021/acs.nanolett.5c01064


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