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Melamine sponge skeleton loaded organic conductors for mechanical sensors with high sensitivity and high resolution

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Abstract

In recent years, due to the development of flexible electronics, flexible sensors have been widely concerned and applied in intelligent robots, brain-computer interfaces, and wearable electronic devices. In this paper, we propose a low-cost and high-efficiency sensor component preparation method. The sensor component tetrathiafulvalene-tetracyanoquinodimethane/melamine sponge (TTMS) takes a melamine sponge as a flexible substrate. And the sponge is metallized with the tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) which is an organic conducting molecule to construct a conductive pathway. The physical load approach is used to ensure the advantages of low cost and efficient manufacturing. TTMS can withstand 8000 compression cycles which exhibits its good mechanical stability. And 1000 cycles of cyclic voltammetry scanning proved it also had good electrical stability. TTMS can distinguish pressure changes of 100 Pa and respond quickly to pressure application and release. The TTMS can be assembled to form an array of sensors that can distinguish the position and intensity of pressure. Therefore, the excellent performance of the sensor is expected to promote the commercial application of the piezoresistive sensor.

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Funding

This study was supported financially by the Fundamental Research Funds for the Central Universities (2021XD-A04-2), Zhejiang Province Public Welfare Technology Application Research Project of China (Grant No. LGG22E010003), the National Natural Science Foundation of China (Nos. 61874014 and 61874013), and the Fund of State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications, P.R. China), and BUPT Excellent Ph.D. Students Foundation (CX2022237).

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Authors and Affiliations

  1. Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Taizhou, Zhejiang, 318000, China

    Yufeng Wu, Jianbo Wu & Yan Lin

  2. State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Yufeng Wu, Junchen Liu, Xian He, Ke Bi & Ming Lei

  3. The School of Information and Electronics, Beijing Institute of Technology, Beijing, 100081, China

    Xiaolong Pan

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  1. Yufeng Wu
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  2. Jianbo Wu
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Contributions

Wu Yufeng was responsible for all the experimental and paper writing parts. Wu Jianbo and Lin Yan provided the characterization test equipment. He Xian helped to complete the characterization of SEM and XRD. Liu Junchen and Pan Xiaolong helped to revise the writing of the paper. Lei Ming and Bi Ke provided experimental ideas, experimental direction, and financial support.

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Correspondence to Jianbo Wu, Xiaolong Pan or Ke Bi.

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Wu, Y., Wu, J., Lin, Y. et al. Melamine sponge skeleton loaded organic conductors for mechanical sensors with high sensitivity and high resolution. Adv Compos Hybrid Mater 6, 4 (2023). https://doi.org/10.1007/s42114-022-00581-5

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