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Hybrid Triboelectric-Electrostatic Droplet Energy Harvester with Nanocomposite Interface for Wireless Power Transfer

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Abstract:

Harnessing ambient kinetic energy from water droplets is a promising route for sustainable power. However, efficient wireless delivery of this energy remains challenging. This study demonstrates a droplet-based electricity generator (DEG) using a composite interfacial structure of ferroelectric polyvinylidene fluoride (PVDF) and triboelectric fluorinated ethylene propylene (FEP). The device achieves an open-circuit voltage up to 254 V and an energy output of 17.17 μJ per droplet. An impedance-matched electronic switch (E-Switch) enables efficient excitation of a magnetically coupled LC resonator, facilitating wireless energy transfer over 50 cm using compact 2-cm coils. System evaluations confirm stable transmission under varying distances and misalignments. This work provides a self-powered, cable-free energy platform well-suited for environmental monitoring and distributed electronics.

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Periodical:

Advances in Science and Technology (Volume 175)

Pages:

27-32

DOI:

https://doi.org/10.4028/p-ZbV1hP

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Online since:

May 2026

Authors:

Liang Quan Xu*, Jia Qi Lu, Ji Kui Luo

Keywords:

Droplet Energy Harvesting, Ferroelectric Materials, Triboelectric Nanogenerator, Wireless Power Transfer

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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