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High-density, highly sensitive sensor array of spiky carbon nanospheres for strain field mapping

Author

Listed:
  • Shuxing Mei

    (220 Handan Rd.)

  • Haokun Yi

    (220 Handan Rd.)

  • Jun Zhao

    (220 Handan Rd.)

  • Yanting Xu

    (220 Handan Rd.)

  • Lan Shi

    (220 Handan Rd.)

  • Yajie Qin

    (220 Handan Rd.)

  • Yizhou Jiang

    (220 Handan Rd.)

  • Jiajie Guo

    (Huazhong University of Science and Technology)

  • Zhuo Li

    (220 Handan Rd.)

  • Limin Wu

    (220 Handan Rd.)

Abstract

While accurate mapping of strain distribution is crucial for assessing stress concentration and estimating fatigue life in engineering applications, conventional strain sensor arrays face a great challenge in balancing sensitivity and sensing density for effective strain mapping. In this study, we present a Fowler-Nordheim tunneling effect of monodispersed spiky carbon nanosphere array on polydimethylsiloxane as strain sensor arrays to achieve a sensitivity up to 70,000, a sensing density of 100 pixel cm−2, and logarithmic linearity over 99% within a wide strain range of 0% to 60%. The highly ordered assembly of spiky carbon nanospheres in each unit also ensures high inter-unit consistency (standard deviation ≤3.82%). Furthermore, this sensor array can conformally cover diverse surfaces, enabling accurate acquisition of strain distributions. The sensing array offers a convenient approach for mapping strain fields in various applications such as flexible electronics, soft robotics, biomechanics, and structure health monitoring.

Suggested Citation

  • Shuxing Mei & Haokun Yi & Jun Zhao & Yanting Xu & Lan Shi & Yajie Qin & Yizhou Jiang & Jiajie Guo & Zhuo Li & Limin Wu, 2024. "High-density, highly sensitive sensor array of spiky carbon nanospheres for strain field mapping," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-47283-8
    DOI: 10.1038/s41467-024-47283-8
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    References listed on IDEAS

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    1. Daeshik Kang & Peter V. Pikhitsa & Yong Whan Choi & Chanseok Lee & Sung Soo Shin & Linfeng Piao & Byeonghak Park & Kahp-Yang Suh & Tae-il Kim & Mansoo Choi, 2014. "Ultrasensitive mechanical crack-based sensor inspired by the spider sensory system," Nature, Nature, vol. 516(7530), pages 222-226, December.
    2. Oluwaseun A. Araromi & Moritz A. Graule & Kristen L. Dorsey & Sam Castellanos & Jonathan R. Foster & Wen-Hao Hsu & Arthur E. Passy & Joost J. Vlassak & James C. Weaver & Conor J. Walsh & Robert J. Woo, 2020. "Ultra-sensitive and resilient compliant strain gauges for soft machines," Nature, Nature, vol. 587(7833), pages 219-224, November.
    3. Lan Shi & Zhuo Li & Min Chen & Yajie Qin & Yizhou Jiang & Limin Wu, 2020. "Quantum effect-based flexible and transparent pressure sensors with ultrahigh sensitivity and sensing density," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
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