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Nonlinearity synergy: An elegant strategy for realizing high-sensitivity and wide-linear-range pressure sensing

Author

Listed:
  • Rui Chen

    (Xiamen University)

  • Tao Luo

    (Xiamen University)

  • Jincheng Wang

    (Xiamen University)

  • Renpeng Wang

    (Xiamen University)

  • Chen Zhang

    (Xiamen University)

  • Yu Xie

    (Xiamen University)

  • Lifeng Qin

    (Xiamen University)

  • Haimin Yao

    (The Hong Kong Polytechnic University, Hung Hom)

  • Wei Zhou

    (Xiamen University)

Abstract

Flexible pressure sensors are indispensable components in various applications such as intelligent robots and wearable devices, whereas developing flexible pressure sensors with both high sensitivity and wide linear range remains a great challenge. Here, we present an elegant strategy to address this challenge by taking advantage of a pyramidal carbon foam array as the sensing layer and an elastomer spacer as the stiffness regulator, realizing an unprecedentedly high sensitivity of 24.6 kPa−1 and an ultra-wide linear range of 1.4 MPa together. Such a wide range of linearity is attributed to the synergy between the nonlinear piezoresistivity of the sensing layer and the nonlinear elasticity of the stiffness regulator. The great application potential of our sensor in robotic manipulation, healthcare monitoring, and human-machine interface is demonstrated. Our design strategy can be extended to the other types of flexible sensors calling for both high sensitivity and wide-range linearity, facilitating the development of high-performance flexible pressure sensors for intelligent robotics and wearable devices.

Suggested Citation

  • Rui Chen & Tao Luo & Jincheng Wang & Renpeng Wang & Chen Zhang & Yu Xie & Lifeng Qin & Haimin Yao & Wei Zhou, 2023. "Nonlinearity synergy: An elegant strategy for realizing high-sensitivity and wide-linear-range pressure sensing," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-42361-9
    DOI: 10.1038/s41467-023-42361-9
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    2. Jingxiao Wang & Xueyong Wei & Junli Shi & Ningning Bai & Xiao Wan & Bing Li & Yingchun Chen & Zhuangde Jiang & Chuan Fei Guo, 2024. "High-resolution flexible iontronic skins for both negative and positive pressure measurement in room temperature wind tunnel applications," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Siyao Qin & Peng Yang & Zhaoqi Liu & Jun Hu & Ning Li & Liming Ding & Xiangyu Chen, 2024. "Triboelectric sensor with ultra-wide linear range based on water-containing elastomer and ion-rich interface," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    4. Jie Li & Fan Zhang & Xiaobin Xia & Kaihang Zhang & Jianhui Wu & Yulu Liu & Chi Zhang & Xinyu Cai & Jiaqi Lu & Liangquan Xu & Rui Wan & Dinku Hazarika & Weipeng Xuan & Jinkai Chen & Zhen Cao & Yubo Li , 2024. "An ultrasensitive multimodal intracranial pressure biotelemetric system enabled by exceptional point and iontronics," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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