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<p>The rising demand for wearable electronics and self-powered biomedical devices has created a need for efficient, biocompatible, and flexible energy harvesters. High-performance piezoelectric nanogenerators (PENG) based on organic/inorganic materials face several inherent challenges, including complex synthesis processes and high toxicity. Addressing this challenge, this study introduces a novel bio-derived PENG fabricated from <i>Ficus benghalensis</i> leaves. The device demonstrates excellent energy conversion, achieving output voltages of 0.68&#xa0;V at 1&#xa0;Hz, 0.95&#xa0;V at 2&#xa0;Hz, and 2.82&#xa0;V at 4&#xa0;Hz with a peak power density of 0.83 mW/m² at 20 MΩ. These results underscore its potential for powering low-energy devices, such as portable electronics and self-sustaining sensors. By leveraging renewable biowaste, this eco-friendly and cost-effective solution highlights the promise of natural resources in advancing sustainable energy-harvesting technologies.</p> Graphical Abstract <p></p>

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Harnessing nature for energy: Ficus benghalensis Leaf-Based piezoelectric nanogenerator

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • Kaphi,
  • Anupam Chowdhury,
  • Sachin Yadav,
  • Vinod,
  • Anuj Krishna,
  • Sushree Swarupa Tripathy,
  • Rina Sharma,
  • S. Wazed Ali

摘要

The rising demand for wearable electronics and self-powered biomedical devices has created a need for efficient, biocompatible, and flexible energy harvesters. High-performance piezoelectric nanogenerators (PENG) based on organic/inorganic materials face several inherent challenges, including complex synthesis processes and high toxicity. Addressing this challenge, this study introduces a novel bio-derived PENG fabricated from Ficus benghalensis leaves. The device demonstrates excellent energy conversion, achieving output voltages of 0.68 V at 1 Hz, 0.95 V at 2 Hz, and 2.82 V at 4 Hz with a peak power density of 0.83 mW/m² at 20 MΩ. These results underscore its potential for powering low-energy devices, such as portable electronics and self-sustaining sensors. By leveraging renewable biowaste, this eco-friendly and cost-effective solution highlights the promise of natural resources in advancing sustainable energy-harvesting technologies.

Graphical Abstract