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<p>Poly (vinylidene) fluoride (PVDF) is a highly non-reactive, pure thermoplastic and semi crystalline polymer. PVDF is inherently flexible, have low mechanical impedance and high sensitivity to mechanical loads. These properties make them more versatile for sensing and actuation purpose. In the present work, design and fabrication of energy harvesters has been done using PVDF films for low power devices. PVDF films have been indigenously developed using self-designed and fabricated machines. PVDF based energy harvester devices such as unimorph, bimorph, multimorph and array of unimorph are developed and are subjected to vibration test. The AC power developed by unimorph, bimorph, and multimorph are 0.35&#xa0;µW, 1.66&#xa0;µW and 15.13&#xa0;µW respectively. It is noticed that the array of unimorph generated maximum power output, which is 47.05&#xa0;µW. It is observed that, as the number of PVDF layers increase, the power output increases keeping the surface area constant. The use of these harvesters for low power electronic instruments which can be powered by these energy harvesters are discussed.</p>

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Design and fabrication of indigenously developed PVDF energy harvesters for low power devices

  • 期刊论文

  • 发表日期：

    2026年5月14日

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  • Enoos Dange,
  • P. Siva Subba Rao,
  • Anjana Jain

摘要

Poly (vinylidene) fluoride (PVDF) is a highly non-reactive, pure thermoplastic and semi crystalline polymer. PVDF is inherently flexible, have low mechanical impedance and high sensitivity to mechanical loads. These properties make them more versatile for sensing and actuation purpose. In the present work, design and fabrication of energy harvesters has been done using PVDF films for low power devices. PVDF films have been indigenously developed using self-designed and fabricated machines. PVDF based energy harvester devices such as unimorph, bimorph, multimorph and array of unimorph are developed and are subjected to vibration test. The AC power developed by unimorph, bimorph, and multimorph are 0.35 µW, 1.66 µW and 15.13 µW respectively. It is noticed that the array of unimorph generated maximum power output, which is 47.05 µW. It is observed that, as the number of PVDF layers increase, the power output increases keeping the surface area constant. The use of these harvesters for low power electronic instruments which can be powered by these energy harvesters are discussed.