Abstract
The emerging wearable electronic devices requires power source available as anytime as possible, and the piezoelectric polymer based nanogenerators attract research interests as a candidate. Herein, we demonstrate a shoepad nanogenerator based on electrospun PVDF nanofibers harvesting energy during walking or running. We first compared three popular processes of electrospinning and find a best one which can produce maximum β-phase content in PVDF nanofibers. Another comparative experiment shows for nanofabric mats the sandwiched electrodes are better for outputting more energy than parallel electrodes. Finally a nanogenerator is designed and fabricated utilizing the far field electrospun PVDF nanofabric mat with the sandwiched electrodes. It has the optimal output power of about 6.45 μW with load resistance of 5.5 MΩ.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (U1505243, 51475398) and the Shenzhen Science and Technology Plan Project (JCYJ20170818141912229).
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Yu, L., Zhou, P., Wu, D. et al. Shoepad nanogenerator based on electrospun PVDF nanofibers. Microsyst Technol 25, 3151–3156 (2019). https://doi.org/10.1007/s00542-018-4217-3
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DOI: https://doi.org/10.1007/s00542-018-4217-3