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Constructing phase boundary in AgNbO3 antiferroelectrics: pathway simultaneously achieving high energy density and efficiency

Author

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  • Nengneng Luo

    (Guangxi University
    Guangxi University)

  • Kai Han

    (Guangxi University)

  • Matthew J. Cabral

    (The University of Sydney)

  • Xiaozhou Liao

    (The University of Sydney)

  • Shujun Zhang

    (University of Wollongong)

  • Changzhong Liao

    (The University of Hong Kong)

  • Guangzu Zhang

    (Huazhong University of Science and Technology)

  • Xiyong Chen

    (Guangxi University)

  • Qin Feng

    (Guangxi University)

  • Jing-Feng Li

    (Tsinghua University)

  • Yuezhou Wei

    (Guangxi University)

Abstract

Dielectric capacitors with high energy storage density (Wrec) and efficiency (η) are in great demand for high/pulsed power electronic systems, but the state-of-the-art lead-free dielectric materials are facing the challenge of increasing one parameter at the cost of the other. Herein, we report that high Wrec of 6.3 J cm-3 with η of 90% can be simultaneously achieved by constructing a room temperature M2–M3 phase boundary in (1-x)AgNbO3-xAgTaO3 solid solution system. The designed material exhibits high energy storage stability over a wide temperature range of 20–150 °C and excellent cycling reliability up to 106 cycles. All these merits achieved in the studied solid solution are attributed to the unique relaxor antiferroelectric features relevant to the local structure heterogeneity and antiferroelectric ordering, being confirmed by scanning transmission electron microscopy and synchrotron X-ray diffraction. This work provides a good paradigm for developing new lead-free dielectrics for high-power energy storage applications.

Suggested Citation

  • Nengneng Luo & Kai Han & Matthew J. Cabral & Xiaozhou Liao & Shujun Zhang & Changzhong Liao & Guangzu Zhang & Xiyong Chen & Qin Feng & Jing-Feng Li & Yuezhou Wei, 2020. "Constructing phase boundary in AgNbO3 antiferroelectrics: pathway simultaneously achieving high energy density and efficiency," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-18665-5
    DOI: 10.1038/s41467-020-18665-5
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    Cited by:

    1. Li-Feng Zhu & Shiqing Deng & Lei Zhao & Gen Li & Qi Wang & Linhai Li & Yongke Yan & He Qi & Bo-Ping Zhang & Jun Chen & Jing-Feng Li, 2023. "Heterovalent-doping-enabled atom-displacement fluctuation leads to ultrahigh energy-storage density in AgNbO3-based multilayer capacitors," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Jianhong Duan & Kun Wei & Qianbiao Du & Linzhao Ma & Huifen Yu & He Qi & Yangchun Tan & Gaokuo Zhong & Hao Li, 2024. "High-entropy superparaelectrics with locally diverse ferroic distortion for high-capacitive energy storage," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    3. Mao-Hua Zhang & Hui Ding & Sonja Egert & Changhao Zhao & Lorenzo Villa & Lovro Fulanović & Pedro B. Groszewicz & Gerd Buntkowsky & Hans-Joachim Kleebe & Karsten Albe & Andreas Klein & Jurij Koruza, 2023. "Tailoring high-energy storage NaNbO3-based materials from antiferroelectric to relaxor states," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    4. Nengneng Luo & Li Ma & Gengguang Luo & Chao Xu & Lixiang Rao & Zhengu Chen & Zhenyong Cen & Qin Feng & Xiyong Chen & Fujita Toyohisa & Ye Zhu & Jiawang Hong & Jing-Feng Li & Shujun Zhang, 2023. "Well-defined double hysteresis loop in NaNbO3 antiferroelectrics," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    5. Weichen Zhao & Diming Xu & Da Li & Max Avdeev & Hongmei Jing & Mengkang Xu & Yan Guo & Dier Shi & Tao Zhou & Wenfeng Liu & Dong Wang & Di Zhou, 2023. "Broad-high operating temperature range and enhanced energy storage performances in lead-free ferroelectrics," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    6. Liang Chen & Shiqing Deng & Hui Liu & Jie Wu & He Qi & Jun Chen, 2022. "Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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