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<p>The proliferation of Internet of Things (IoT) technologies has driven widespread adoption of textile-integrated wearable electronics, with research advancements in piezoelectric nanogenerator systems demonstrating remarkable breakthroughs and transformative application prospects. This study fabricated high-performance piezoelectric nanofiber yarns via material optimization and textile engineering strategies to address the power constraints and seamless integration challenges in wearable electronics, while enabling biomechanical energy harvesting and continuous motion monitoring capabilities. Piezoelectric nanoyarns were prepared by introducing dopamine (DA)-modified barium titanate (BTO) nanoparticles, conjugated with polyvinylidene fluoride (PVDF) for electrostatic spinning, followed by coaxial interlocked nanostructures obtained by hydrothermal growth of a layer of zinc oxide (ZnO) nanowires on the surface of piezoelectric yarns, which enhanced the structural versatility of PVDF-based materials from two-dimensional to three-dimensional. The piezoelectric nanoyarns are characterized by high knittability and easy integration. By stitching them onto fabrics, they can achieve a high-performance voltage output of 3.2&#xa0;V under the pressure applied by human body movement and sensitively monitor various forms of motion, providing innovative solutions for energy self-sufficiency and motion monitoring in the field of smart wearable, which will vigorously promote the expansion of the piezoelectric yarns in the application fields of action recognition and motion tracking, healthcare monitoring, pressure detection and tactile sensing. It serves as a powerful impetus for expanding the use of piezoelectric yarns in motion recognition and tracking, healthcare monitoring, pressure detection, and tactile sensing applications.</p> Graphical Abstract <p></p>

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Study on Coaxial Interlocked Structure ZnO@PVDF/BTO Piezoelectric Nanofiber Yarn

  • 期刊论文

  • 发表日期：

    2025年8月17日

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  • Hao-Kai Peng,
  • Qiu-Guo Liu,
  • Xiu-Ping Li,
  • Xiao-Feng Wu,
  • Yong-Ye Shi,
  • Ting-Ting Li,
  • Jia-Horng Lin

摘要

The proliferation of Internet of Things (IoT) technologies has driven widespread adoption of textile-integrated wearable electronics, with research advancements in piezoelectric nanogenerator systems demonstrating remarkable breakthroughs and transformative application prospects. This study fabricated high-performance piezoelectric nanofiber yarns via material optimization and textile engineering strategies to address the power constraints and seamless integration challenges in wearable electronics, while enabling biomechanical energy harvesting and continuous motion monitoring capabilities. Piezoelectric nanoyarns were prepared by introducing dopamine (DA)-modified barium titanate (BTO) nanoparticles, conjugated with polyvinylidene fluoride (PVDF) for electrostatic spinning, followed by coaxial interlocked nanostructures obtained by hydrothermal growth of a layer of zinc oxide (ZnO) nanowires on the surface of piezoelectric yarns, which enhanced the structural versatility of PVDF-based materials from two-dimensional to three-dimensional. The piezoelectric nanoyarns are characterized by high knittability and easy integration. By stitching them onto fabrics, they can achieve a high-performance voltage output of 3.2 V under the pressure applied by human body movement and sensitively monitor various forms of motion, providing innovative solutions for energy self-sufficiency and motion monitoring in the field of smart wearable, which will vigorously promote the expansion of the piezoelectric yarns in the application fields of action recognition and motion tracking, healthcare monitoring, pressure detection and tactile sensing. It serves as a powerful impetus for expanding the use of piezoelectric yarns in motion recognition and tracking, healthcare monitoring, pressure detection, and tactile sensing applications.

Graphical Abstract