https://doi.org/10.1140/epjp/s13360-025-06674-6
Regular Article
Enhancement of piezoelectric properties of the PVDF film by interfacial layer Cu-network
1
College of Electron and Information Engineering, University of Electronic Science and Technology of China Zhongshan Institute, 528402, Zhongshan, China
2
School of Physics, University of Electronic Science and Technology of China, 610054, Chengdu, China
Received:
10
March
2025
Accepted:
18
July
2025
Published online:
9
August
2025
Flexible wearable piezoelectric devices have been attracting increasing attention in microdevice actuating, wasted energy harvesting, and motion signal detecting. In addition, it also possesses close-fitting, flexible, and portable characteristics for everyday use. The most important research content on piezoelectric devices is to improve their piezoelectric output performances. In this paper, we try to investigate enhancement of piezoelectric properties of the PVDF film by choosing Cu-network as interfacial layer. A flexible wearable polyvinylidene fluoride (PVDF)/Cu-network piezoelectric composite film was prepared. The PVDF film was prepared by Langmuir–Blodgett (LB) method, and the Cu-network film was prepared by the method based on a crack template. A series of piezoelectric tests in the PVDF film and the PVDF/Cu-network composite film were conducted. The experimental results show that the piezoelectric properties of the PVDF/Cu-network film are much better than those of the PVDF film, which confirms the gain effect of Cu-network on the PVDF film. We designed an energy harvesting circuit, in which a light-emitting diode can be lighted up when the PVDF/Cu-network composite film is folded 25 times.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
