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Studies on the electrostatic effects of stretched PVDF films and nanofibers.

ABSTRACT: The electroactive β-phase in Poly (vinylidene fluoride, PVDF) is the most desirable conformation due to its highest pyro- and piezoelectric properties, which make it feasible to be used as flexible sensors, wearable electronics, and energy harvesters etc. In this study, we successfully developed a method to obtain high-content β-phase PVDF films and nanofiber meshes by mechanical stretching and electric spinning. The phase transition process and pyro- and piezoelectric effects of stretched films and nanofiber meshes were characterized by monitoring the polarized light microscopy (PLM) images, outputting currents and open-circuit voltages respectively, which were proved to be closely related to stretching ratio (λ) and concentrations. This study could expand a new route for the easy fabrication and wide application of PVDF films or fibers in wearable electronics, sensors, and energy harvesting devices.

SUBMITTER: Lin Y

PROVIDER: S-EPMC8093351 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Studies on the electrostatic effects of stretched PVDF films and nanofibers.

Lin Yixuan Y Zhang Yuqiong Y Zhang Fan F Zhang Meining M Li Dalong D Deng Gaofeng G Guan Li L Dong Mingdong M

Nanoscale research letters 20210503 1

The electroactive β-phase in Poly (vinylidene fluoride, PVDF) is the most desirable conformation due to its highest pyro- and piezoelectric properties, which make it feasible to be used as flexible sensors, wearable electronics, and energy harvesters etc. In this study, we successfully developed a method to obtain high-content β-phase PVDF films and nanofiber meshes by mechanical stretching and electric spinning. The phase transition process and pyro- and piezoelectric effects of stretched films ...[more]

PMID: 33939029

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