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<p>In pursuit of effective and sustainable energy solutions, biomechanical energy harvesting gained prominence as a promising strategy to convert mechanical energy into usable electric energy. This study investigates the potential of an electrospun nanogenerator fabricated from poly(vinylidene fluoride) (PVDF) integrated with Barium Calcium Zirconium Titanate (Ba<sub>0.85</sub>Ca<sub>0.15</sub>Zr<sub>0.1</sub>Ti<sub>0.9</sub>O<sub>3</sub>) (BCZT) nanoparticles for effective biomechanical energy harvesting applications. BCZT fillers were incorporated into the PVDF matrix at concentrations of 1 wt%, 2 wt%, 4 wt%, and 8 wt%. The morphological features of the PVDF and BCZT/PVDF composites were characterized using field emission gun scanning electron microscopy (FEG-SEM), while their crystalline structures were analyzed through Raman spectroscopy and Fourier-transform infrared spectroscopy (FTIR). The nanogenerator containing 4&#xa0;wt% BCZT exhibited a significant enhancement in performance, producing an output voltage of approximately 16&#xa0;V under finger tapping nearly six times higher than pristine PVDF. This piezoelectric nanogenerator (PENG) demonstrated responsiveness to biomechanical forces, including activities like writing and operating a computer mouse. Its maximum power output reached 250&#xa0;μW under mechanical tapping with a 1&#xa0;MΩ load resistance. Furthermore, the PENG’s charge storage capability was assessed by charging various capacitors, and by powering a digital watch.</p>

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Electrospun Ba0.85Ca0.15Zr0.1Ti0.9O3-Poly(vinylidene fluoride) fiber mats for bio-mechanical energy harvesting

  • 期刊论文

  • 发表日期：

    2025年4月28日

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  • Neha Thakur,
  • Anshika Bagla,
  • Supratim Mitra,
  • Prakash Gopalan,
  • Jayant Kolte

摘要

In pursuit of effective and sustainable energy solutions, biomechanical energy harvesting gained prominence as a promising strategy to convert mechanical energy into usable electric energy. This study investigates the potential of an electrospun nanogenerator fabricated from poly(vinylidene fluoride) (PVDF) integrated with Barium Calcium Zirconium Titanate (Ba0.85Ca0.15Zr0.1Ti0.9O3) (BCZT) nanoparticles for effective biomechanical energy harvesting applications. BCZT fillers were incorporated into the PVDF matrix at concentrations of 1 wt%, 2 wt%, 4 wt%, and 8 wt%. The morphological features of the PVDF and BCZT/PVDF composites were characterized using field emission gun scanning electron microscopy (FEG-SEM), while their crystalline structures were analyzed through Raman spectroscopy and Fourier-transform infrared spectroscopy (FTIR). The nanogenerator containing 4 wt% BCZT exhibited a significant enhancement in performance, producing an output voltage of approximately 16 V under finger tapping nearly six times higher than pristine PVDF. This piezoelectric nanogenerator (PENG) demonstrated responsiveness to biomechanical forces, including activities like writing and operating a computer mouse. Its maximum power output reached 250 μW under mechanical tapping with a 1 MΩ load resistance. Furthermore, the PENG’s charge storage capability was assessed by charging various capacitors, and by powering a digital watch.