Multifunctional Flexible Sensor Based on Laser-Induced Graphene

Sensors

Yongzhao Xu¹  Tao Han¹  Anindya Nag¹  Hangrui Liu²  Nasrin Afsarimanesh³  SubhasChandra Mukhopadhyay³  Ronan Sauleau⁴  RoyB. V. B. Simorangkir⁴  Maxim Zhadobov⁴ 

[1] DGUT-CNAM Institute, Dongguan University of Technology, Dongguan 523106, China;Department of Astronomy and Physics, Macquarie University, Sydney, NSW 2109, Australia;School of Engineering, Macquarie University, Sydney, NSW 2109, Australia;University of Rennes 1, UMR CNRS 6164, Institut d’Electronique et de Télécommunications of Rennes (IETR), F-35000 Rennes, France;

关键词: capacitive sensors;    electrochemical sensing;    flexible sensors;    interdigital;    laser-induced graphene;    strain sensing;    wearable sensors;   

DOI  :  10.3390/s19163477

来源: DOAJ

【 摘 要 】

The paper presents the design and fabrication of a low-cost and easy-to-fabricate laser-induced graphene sensor together with its implementation for multi-sensing applications. Laser-irradiation of commercial polymer film was applied for photo-thermal generation of graphene. The graphene patterned in an interdigitated shape was transferred onto Kapton sticky tape to form the electrodes of a capacitive sensor. The functionality of the sensor was validated by employing them in electrochemical and strain-sensing scenarios. Impedance spectroscopy was applied to investigate the response of the sensor. For the electrochemical sensing, different concentrations of sodium sulfate were prepared, and the fabricated sensor was used to detect the concentration differences. For the strain sensing, the sensor was deployed for monitoring of human joint movements and tactile sensing. The promising sensing results validating the applicability of the fabricated sensor for multiple sensing purposes are presented.

【 授权许可】

Unknown