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Heterostrain-enabled ultrahigh electrostrain in lead-free piezoelectric

Author

Listed:
  • Wei Feng

    (Tsinghua University)

  • Bingcheng Luo

    (China Agricultural University)

  • Shuaishuai Bian

    (Tsinghua University)

  • Enke Tian

    (China University of Geosciences)

  • Zili Zhang

    (China University of Geosciences)

  • Ahmed Kursumovic

    (University of Cambridge)

  • Judith L. MacManus-Driscoll

    (University of Cambridge)

  • Xiaohui Wang

    (Tsinghua University)

  • Longtu Li

    (Tsinghua University)

Abstract

Piezoelectric materials provide high strain and large driving forces in actuators and can transform electrical energy into mechanical energy. Although they were discovered over 100 years ago, scientists are still searching for alternative lead-free piezoelectrics to reduce their environmental impact. Developing high-strain piezoelectric materials has been a long-term challenge, particularly challenging for the design of high-strain polycrystalline piezoelectrics containing no toxic lead element. In this work, we report one strategy to enhance the electrostrain via designing “heterostrain” through atomic-scale defect engineering and mesoscale domain engineering. We achieve an ultrahigh electrostrain of 2.3% at high temperature (220 °C) in lead-free polycrystalline ceramics, higher than all state-of-the-art piezoelectric materials, including lead-free and lead-based ceramics and single crystals. We demonstrate practical solutions for achieving high electrostrain in low-cost environmentally piezoelectric for various applications.

Suggested Citation

  • Wei Feng & Bingcheng Luo & Shuaishuai Bian & Enke Tian & Zili Zhang & Ahmed Kursumovic & Judith L. MacManus-Driscoll & Xiaohui Wang & Longtu Li, 2022. "Heterostrain-enabled ultrahigh electrostrain in lead-free piezoelectric," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
  • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-32825-9
    DOI: 10.1038/s41467-022-32825-9
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    References listed on IDEAS

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    1. Yasuyoshi Saito & Hisaaki Takao & Toshihiko Tani & Tatsuhiko Nonoyama & Kazumasa Takatori & Takahiko Homma & Toshiatsu Nagaya & Masaya Nakamura, 2004. "Lead-free piezoceramics," Nature, Nature, vol. 432(7013), pages 84-87, November.
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    Cited by:

    1. Xuefan Zhou & Jun Zhang & Hang Luo & Yan Zhang & Shiyu Tang & Houbing Huang & Xi Yuan & Miao Song & He Qi & Dou Zhang, 2024. "Lead-free ferroelectrics with giant unipolar strain for high-precision actuators," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Yuqi Jiang & Mao-Hua Zhang & Chao-Feng Wu & Ze Xu & Zhao Li & Jing-Tong Lu & Hao-Feng Huang & Jia-Jun Zhou & Yi-Xuan Liu & Tianhang Zhou & Wen Gong & Ke Wang, 2024. "Low-field-driven large strain in lead zirconate titanium-based piezoceramics incorporating relaxor lead magnesium niobate for actuation," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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