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Organic-inorganic hybrid covalent superlattice for temperature-compensated ratiometric gas sensing

Author

Listed:
  • Ke-Feng Li

    (Chinese Academy of Sciences
    Fujian Normal University
    University of Chinese Academy of Sciences)

  • Chen-Hui Yu

    (Chinese Academy of Sciences)

  • Guang-Ling Liang

    (Chinese Academy of Sciences)

  • Jie Chen

    (Chinese Academy of Sciences)

  • Yu Chang

    (Chinese Academy of Sciences)

  • Gang Xu

    (Chinese Academy of Sciences
    Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China)

  • Guan-E Wang

    (Chinese Academy of Sciences)

Abstract

Room-temperature chemiresistive sensors are valued for their low power consumption, ease of operation, and real-time monitoring capabilities, making them highly advantageous for various applications. However, the challenge of inaccurate detection due to variations in operating temperature is a significant hurdle for their practical use. To address this, we develop a ratiometric-gas sensing method that leverages the exceptional photoelectric and chemiresistive gas sensing sensitivity of organic-inorganic hybrid superlattice materials AgBDT (BDT = 1,4-benzenedithiol). This approach can effectively detect nitrogen dioxide molecules, with a detection limit of 3.06 ppb. Crucially, the ratiometric-gas sensing technique offers robust diminution to temperature interference, with the coefficient of variation value dropping from 21.81% to 7.81% within the temperature range of 25 to 65 °C, which significantly enhances the stability and reliability of the device. This method would be capable of not only the detecting of gases but also providing rapid, accurate analysis in real conditions.

Suggested Citation

  • Ke-Feng Li & Chen-Hui Yu & Guang-Ling Liang & Jie Chen & Yu Chang & Gang Xu & Guan-E Wang, 2025. "Organic-inorganic hybrid covalent superlattice for temperature-compensated ratiometric gas sensing," Nature Communications, Nature, vol. 16(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-56609-z
    DOI: 10.1038/s41467-025-56609-z
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    References listed on IDEAS

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    1. Xing Huang & Peng Sheng & Zeyi Tu & Fengjiao Zhang & Junhua Wang & Hua Geng & Ye Zou & Chong-an Di & Yuanping Yi & Yimeng Sun & Wei Xu & Daoben Zhu, 2015. "A two-dimensional π–d conjugated coordination polymer with extremely high electrical conductivity and ambipolar transport behaviour," Nature Communications, Nature, vol. 6(1), pages 1-8, November.
    2. Hong Zhang & Zuobin Zhang & Zhou Li & Hongjie Han & Weiguo Song & Jianxin Yi, 2023. "A chemiresistive-potentiometric multivariate sensor for discriminative gas detection," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    3. Eunbyul Cho & Youngsik Woo & Yeongjun Suh & Bo Kyoung Suh & Soo Jeong Kim & Truong Thi My Nhung & Jin Yeong Yoo & Tran Diem Nghi & Su Been Lee & Dong Jin Mun & Sang Ki Park, 2023. "Ratiometric measurement of MAM Ca2+ dynamics using a modified CalfluxVTN," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
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