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Low cost flexible pressure sensor using laser scribed GO/RGO periodic structure for electronic skin applications

Hosseindokht, Z ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1016/j.spmi.2020.106470
  3. Publisher: Academic Press , 2020
  4. Abstract:
  5. Considering electronic skin applications, a pressure sensor based on periodic structure of graphene oxide-reduced graphene oxide (GO-rGO) has been designed and fabricated based on a low cost direct laser writing technique by utilizing the laser diode of DVD drive's pickup head. The optimization of sensor structure has been performed using computational modelling through Finite Element Method (FEM) in the COMSOL environment. The optimized structure is fabricated based on the deposition of thin layer of GO on the surface of Kapton and the pattering is performed by laser irradiation. The fabricated sensor structure has been characterized structurally and functionally. The results show that the fabrication method is successful in the formation of periodic structure of GO-rGO and the sensor has an acceptable response in the range of 1.5–40 kPa. © 2020 Elsevier Ltd
  6. Keywords:
  7. COMSOL ; Electronic skin ; Graphene oxide ; Laser scribed ; Pressure sensor ; Costs ; Deposition ; Fabrication ; Periodic structures ; Pressure sensors ; Reduced Graphene Oxide ; Structural optimization ; Computational modelling ; Direct laser writing ; Fabricated sensors ; Fabrication method ; Flexible pressure sensors ; Optimized structures ; Graphene
  8. Source: Superlattices and Microstructures ; Volume 140 , 2020
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0749603619319068