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An ultra-sensitive resistive pressure sensor based on hollow-sphere microstructure induced elasticity in conducting polymer film

Author

Listed:
  • Lijia Pan

    (Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials, School of Electronic Science and Engineering, National Center of Microstructures and Quantum Manipulation, Nanjing University
    Stanford University)

  • Alex Chortos

    (Stanford University)

  • Guihua Yu

    (The University of Texas at Austin)

  • Yaqun Wang

    (Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials, School of Electronic Science and Engineering, National Center of Microstructures and Quantum Manipulation, Nanjing University)

  • Scott Isaacson

    (Stanford University)

  • Ranulfo Allen

    (Stanford University)

  • Yi Shi

    (Jiangsu Provincial Key Laboratory of Photonic and Electronic Materials, School of Electronic Science and Engineering, National Center of Microstructures and Quantum Manipulation, Nanjing University)

  • Reinhold Dauskardt

    (Stanford University)

  • Zhenan Bao

    (Stanford University)

Abstract

Pressure sensing is an important function of electronic skin devices. The development of pressure sensors that can mimic and surpass the subtle pressure sensing properties of natural skin requires the rational design of materials and devices. Here we present an ultra-sensitive resistive pressure sensor based on an elastic, microstructured conducting polymer thin film. The elastic microstructured film is prepared from a polypyrrole hydrogel using a multiphase reaction that produced a hollow-sphere microstructure that endows polypyrrole with structure-derived elasticity and a low effective elastic modulus. The contact area between the microstructured thin film and the electrodes increases with the application of pressure, enabling the device to detect low pressures with ultra-high sensitivity. Our pressure sensor based on an elastic microstructured thin film enables the detection of pressures of less than 1 Pa and exhibits a short response time, good reproducibility, excellent cycling stability and temperature-stable sensing.

Suggested Citation

  • Lijia Pan & Alex Chortos & Guihua Yu & Yaqun Wang & Scott Isaacson & Ranulfo Allen & Yi Shi & Reinhold Dauskardt & Zhenan Bao, 2014. "An ultra-sensitive resistive pressure sensor based on hollow-sphere microstructure induced elasticity in conducting polymer film," Nature Communications, Nature, vol. 5(1), pages 1-8, May.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4002
    DOI: 10.1038/ncomms4002
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    Cited by:

    1. Jia-Han Zhang & Zhengtong Li & Juan Xu & Jiean Li & Ke Yan & Wen Cheng & Ming Xin & Tangsong Zhu & Jinhua Du & Sixuan Chen & Xiaoming An & Zhou Zhou & Luyao Cheng & Shu Ying & Jing Zhang & Xingxun Gao, 2022. "Versatile self-assembled electrospun micropyramid arrays for high-performance on-skin devices with minimal sensory interference," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Jinhui Zhang & Haimin Yao & Jiaying Mo & Songyue Chen & Yu Xie & Shenglin Ma & Rui Chen & Tao Luo & Weisong Ling & Lifeng Qin & Zuankai Wang & Wei Zhou, 2022. "Finger-inspired rigid-soft hybrid tactile sensor with superior sensitivity at high frequency," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    3. Yongjun Xiao & Chao Guo & Qingdong Zeng & Zenggang Xiong & Yunwang Ge & Wenqing Chen & Jun Wan & Bo Wang, 2021. "Electret Nanogenerators for Self-Powered, Flexible Electronic Pianos," Sustainability, MDPI, vol. 13(8), pages 1-10, April.

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