Abstract
With the popularity of intelligent devices, wearable electronic devices show great market prospects. Capacitive flexible pressure sensors with sandwich structure are designed and manufactured, and their performances are studied. A novel graphene (GR)/PEDOT:PSS multi-component mixed ink was prepared based on solution blending method using silver nanowires as electrodes and PDMS as flexible substrates. The GR/PEDOT:PSS multi-component mixed ink was used as conductive material. The different GR dosage pairs were analyzed by means of SEM and electrical testing platform. At the same time, PDMS films with micro-nano structure and planar structure were prepared by using ground glass and smooth glass as templates for flexible substrates respectively. Then AgNWs/PDMS composite electrodes were prepared by spraying method. With another layer of PDMS as dielectric layer, the two electrodes were encapsulated face to face to obtain capacitive flexible pressure sensor. Finally, the influence of electrode Micro-Nanostructure on device performance was systematically studied. The results show that the sensitivity of AgNWs/PDMS composite thin film sensor with Micro-Nanostructure is 1.0 kPa-1, while that of plane AgNWs/PDMS composite thin film sensor is 0.6 kPa-1. It can be concluded that flexible substrates with Micro-Nanostructure can significantly improve the sensitivity of the device.
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Acknowledgments
Foundation project: 2018 Key topic of Educational Science Planning in Jilin Province, Research on the training mode of innovative engineering talents under the background of Emerging Engineering Education (ZD18089).
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Yuan, H. (2020). Design and Fabrication of Bionic Micro-nano Flexible Sensor. In: Atiquzzaman, M., Yen, N., Xu, Z. (eds) Big Data Analytics for Cyber-Physical System in Smart City. BDCPS 2019. Advances in Intelligent Systems and Computing, vol 1117. Springer, Singapore. https://doi.org/10.1007/978-981-15-2568-1_23
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DOI: https://doi.org/10.1007/978-981-15-2568-1_23
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