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<p>With the growing global energy crisis, the development of renewable energy technologies has become a critical research focus. Piezoelectric devices have garnered significant attention due to the ability to convert mechanical energy into electrical energy. However, traditional processing methods, based on subtractive manufacturing, face limitations such as complex processes, high costs and difficulties in fabricating complex structures. Herein, we proposed a novel approach to fabricate polyvinylidene fluoride (PVDF) piezoelectric devices with enhanced structural morphology and output performance by selective laser sintering (SLS) 3D printing technology. The influence of key SLS processing parameters on the microstructure, crystallinity, mechanical properties, and piezoelectric performances of PVDF devices was systematically investigated. Optimal processing conditions were identified to minimize structural defects and maximize piezoelectric output. The results demonstrated that precise control of SLS parameters significantly improved the β phase relative amount and stress transmission efficiency of PVDF. The piezoelectric properties could reach an open-circuit voltage of 0.8&#xa0;V and a short-circuit current of 27.8 nA. This work not only provides a new integrated Manufacturing method for 3D piezoelectric devices, but also establishes a foundational framework for optimizing piezoelectric performance through processing behavior regulation, offering promising potential for advanced energy harvesting applications.</p>

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3D printed PVDF piezoelectric devices with enhanced structure morphology and output performances via controlled processing behavior

  • 期刊论文

  • 发表日期：

    2025年9月16日

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  • Shiping Song,
  • Bing Yang,
  • Jiarui Zhang,
  • Lingyu Lu,
  • Ziyin Dai,
  • Jiayi Fan,
  • Bo Cheng,
  • Yunchao Jia,
  • Wenxi Cheng

摘要

With the growing global energy crisis, the development of renewable energy technologies has become a critical research focus. Piezoelectric devices have garnered significant attention due to the ability to convert mechanical energy into electrical energy. However, traditional processing methods, based on subtractive manufacturing, face limitations such as complex processes, high costs and difficulties in fabricating complex structures. Herein, we proposed a novel approach to fabricate polyvinylidene fluoride (PVDF) piezoelectric devices with enhanced structural morphology and output performance by selective laser sintering (SLS) 3D printing technology. The influence of key SLS processing parameters on the microstructure, crystallinity, mechanical properties, and piezoelectric performances of PVDF devices was systematically investigated. Optimal processing conditions were identified to minimize structural defects and maximize piezoelectric output. The results demonstrated that precise control of SLS parameters significantly improved the β phase relative amount and stress transmission efficiency of PVDF. The piezoelectric properties could reach an open-circuit voltage of 0.8 V and a short-circuit current of 27.8 nA. This work not only provides a new integrated Manufacturing method for 3D piezoelectric devices, but also establishes a foundational framework for optimizing piezoelectric performance through processing behavior regulation, offering promising potential for advanced energy harvesting applications.