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Ultra-high electrostriction and ferroelectricity in poly (vinylidene fluoride) by ‘printing of charge’ throughout the film

Author

Listed:
  • Ningyi Zhang

    (Hunan University
    Hunan University)

  • Xiaobing Dong

    (Hunan University
    Hunan University)

  • Shihui He

    (Hunan University
    Hunan University)

  • Zhao Liang

    (Hunan University
    Ningbo University of Technology)

  • Weipeng Li

    (Hunan University
    Hunan University)

  • Qihao Qian

    (Hunan University
    Hunan University)

  • Chao Jiang

    (Hunan University
    Hunan University)

Abstract

Electrostriction is an important electro-mechanical property in poly (vinylidene fluoride) (PVDF) films, which describes the proportional relation between the electro-stimulated deformation and the square of the electric field. Generally, traditional methods to improve the electrostriction of PVDF either sacrifice other crystalline-related key properties or only influence minimal regions around the surface. Here, we design a unique electret structure to fully exploit the benefits of internal crystal in PVDF films. Through the 3D printing of charged ink, we have obtained the best electrostrictive and ferroelectric properties among PVDF-based materials so far. The optimized electrostrictive coefficient M33 (324 × 10−18 m2 V−2) is 104 times that of normal PVDF films, and the piezoelectric constant d33 (298 pm V−1) is close to 10 times its traditional limit. The proposed 3D electret structure and the bottom-up approach to ‘print the charge’ open up a new way to design and adapt the electroactive polymers in smart devices and systems.

Suggested Citation

  • Ningyi Zhang & Xiaobing Dong & Shihui He & Zhao Liang & Weipeng Li & Qihao Qian & Chao Jiang, 2025. "Ultra-high electrostriction and ferroelectricity in poly (vinylidene fluoride) by ‘printing of charge’ throughout the film," Nature Communications, Nature, vol. 16(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-56064-w
    DOI: 10.1038/s41467-025-56064-w
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    References listed on IDEAS

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    1. F. Molina-Lopez & T. Z. Gao & U. Kraft & C. Zhu & T. Öhlund & R. Pfattner & V. R. Feig & Y. Kim & S. Wang & Y. Yun & Z. Bao, 2019. "Inkjet-printed stretchable and low voltage synaptic transistor array," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
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