Abstract
In this research, we developed a mass production method for the preparation of thermosensitive ink composite, followed by deposition of the composite on the flexible substrate via spray coating technology. Firstly, Ag micropattern was designed and deposited on flexible polyimide substrate by high-precision screen printing. The Ag interdigital electrodes with controlled spacing are realized by optimization of the sintering temperature, and the thermosensitive ink composed of polydimethylsiloxane (PDMS) mixed with graphite powder and graphene was coated on the surface of the electrodes. Effect of sintering temperature on the microstructure and electrical conductivity of Ag electrode is evaluated, and the sensitivity of the flexible temperature sensor in the large dynamic range of 15–40 °C is investigated. Finally, the sensing characteristics, response time, temperature hysteresis and effect of the spontaneous heating are tested, and the experimental results demonstrated a high-performance sensor with a higher sensitivity, a smaller hysteresis, a better linearity and a faster response.
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Acknowledgements
This work was supported by the Beijing Municipal Science & Technology Commission (Z181100004418004), the Research and Development Program of BIGC (Ec201808), the National Natural Science Foundation of China (61501039), and the Beijing Natural Science Foundation (2162017).
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Liu, R., Wang, X., Shi, Y., Sun, Z., Li, Z. (2020). Fabrication of Flexible Temperature Sensor Based on Printed Electronics. In: Zhao, P., Ye, Z., Xu, M., Yang, L. (eds) Advanced Graphic Communication, Printing and Packaging Technology. Lecture Notes in Electrical Engineering, vol 600. Springer, Singapore. https://doi.org/10.1007/978-981-15-1864-5_38
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DOI: https://doi.org/10.1007/978-981-15-1864-5_38
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