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Flexible temperature-pressure dual sensor based on 3D spiral thermoelectric Bi2Te3 films

Author

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  • Hailong Yu

    (University of Science and Technology of China
    Institute of Metal Research, Chinese Academy of Sciences)

  • Zhenqing Hu

    (University of Science and Technology of China
    Institute of Metal Research, Chinese Academy of Sciences)

  • Juan He

    (University of Science and Technology of China
    Institute of Metal Research, Chinese Academy of Sciences)

  • Yijun Ran

    (University of Science and Technology of China
    Institute of Metal Research, Chinese Academy of Sciences)

  • Yang Zhao

    (Institute of Metal Research, Chinese Academy of Sciences)

  • Zhi Yu

    (University of Science and Technology of China
    Institute of Metal Research, Chinese Academy of Sciences)

  • Kaiping Tai

    (University of Science and Technology of China
    Institute of Metal Research, Chinese Academy of Sciences
    Liaoning professional technology innovation center for integrated circuit thermal management)

Abstract

Dual-parameter pressure-temperature sensors are widely employed in personal health monitoring and robots to detect external signals. Herein, we develop a flexible composite dual-parameter pressure-temperature sensor based on three-dimensional (3D) spiral thermoelectric Bi2Te3 films. The film has a (000l) texture and good flexibility, exhibiting a maximum Seebeck coefficient of −181 μV K–1 and piezoresistance gauge factor of approximately −9.2. The device demonstrates a record-high temperature-sensing performance with a high sensing sensitivity (−426.4 μV K−1) and rapid response time (~0.95 s), which are better than those observed in most previous studies. In addition, owing to the piezoresistive effect in the Bi2Te3 film, the 3D-spiral deviceexhibits significant pressure-response properties with a pressure-sensing sensitivity of 120 Pa–1. This innovative approach achieves high-performance dual-parameter sensing using one kind of material with high flexibility, providing insight into the design and fabrication of many applications, such as e-skin.

Suggested Citation

  • Hailong Yu & Zhenqing Hu & Juan He & Yijun Ran & Yang Zhao & Zhi Yu & Kaiping Tai, 2024. "Flexible temperature-pressure dual sensor based on 3D spiral thermoelectric Bi2Te3 films," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-46836-1
    DOI: 10.1038/s41467-024-46836-1
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    References listed on IDEAS

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    1. Fengjiao Zhang & Yaping Zang & Dazhen Huang & Chong-an Di & Daoben Zhu, 2015. "Flexible and self-powered temperature–pressure dual-parameter sensors using microstructure-frame-supported organic thermoelectric materials," Nature Communications, Nature, vol. 6(1), pages 1-10, December.
    2. Haitao Yang & Jiali Li & Xiao Xiao & Jiahao Wang & Yufei Li & Kerui Li & Zhipeng Li & Haochen Yang & Qian Wang & Jie Yang & John S. Ho & Po-Len Yeh & Koen Mouthaan & Xiaonan Wang & Sahil Shah & Po-Yen, 2022. "Topographic design in wearable MXene sensors with in-sensor machine learning for full-body avatar reconstruction," Nature Communications, Nature, vol. 13(1), pages 1-15, December.
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