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Enhancing the current density of a piezoelectric nanogenerator using a three-dimensional intercalation electrode

Author

Listed:
  • Long Gu

    (Xidian University)

  • Jinmei Liu

    (Xidian University)

  • Nuanyang Cui

    (Xidian University)

  • Qi Xu

    (Xidian University)

  • Tao Du

    (Xidian University)

  • Lu Zhang

    (Xidian University)

  • Zheng Wang

    (Xidian University)

  • Changbai Long

    (Xidian University)

  • Yong Qin

    (Lanzhou University)

Abstract

The low output current density of piezoelectric nanogenerators (PENGs) severely restricts their application for ambient mechanical energy harvest. This has been a key challenge in the development of PENG. Here, to conquer this, based on a piezoelectric material with high piezoelectric coefficient (Sm-PMN-PT), a new design of PENG with a three-dimensional intercalation electrode (IENG) is proposed. By creating many boundary interfaces inside the piezoelectric material, the total amount of surface polarization charges increased, which contributes to an increased current density. The IENG can output a maximum peak short-circuit current of 320 μA, and the corresponding current density 290 μA cm−2 is 1.93 and 1.61 times the record values of PENG and triboelectric nanogenerator (TENG), respectively. It can also charge a 1 μF capacitor from 0 V to 8 V in 21 cycles, and the equivalent surface charge density 1690 μC m−2 is 1.35 times the record value of TENG.

Suggested Citation

  • Long Gu & Jinmei Liu & Nuanyang Cui & Qi Xu & Tao Du & Lu Zhang & Zheng Wang & Changbai Long & Yong Qin, 2020. "Enhancing the current density of a piezoelectric nanogenerator using a three-dimensional intercalation electrode," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14846-4
    DOI: 10.1038/s41467-020-14846-4
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    Cited by:

    1. Wei Fan & Ruixin Lei & Hao Dou & Zheng Wu & Linlin Lu & Shujuan Wang & Xuqing Liu & Weichun Chen & Mashallah Rezakazemi & Tejraj M. Aminabhavi & Yi Li & Shengbo Ge, 2024. "Sweat permeable and ultrahigh strength 3D PVDF piezoelectric nanoyarn fabric strain sensor," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Yuanjie Su & Weixiong Li & Xiaoxing Cheng & Yihao Zhou & Shuai Yang & Xu Zhang & Chunxu Chen & Tiannan Yang & Hong Pan & Guangzhong Xie & Guorui Chen & Xun Zhao & Xiao Xiao & Bei Li & Huiling Tai & Ya, 2022. "High-performance piezoelectric composites via β phase programming," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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