Flexible Graphene-Copper Nanocomposite for Potential Wearable Electronics Applications

Abstract:

The demand for flexible and wearable electrochemical sensors has surged due to their low cost and portability. This study produces and characterizes low-cost and environmentally friendly flexible laser engraved graphene/Cu nanoparticles composite materials as a potential electrode for electronic applications. The electrode is fabricated by directly engraving Polyimide substrate using a CO₂ laser machine to produce Laser Engraved Graphene (LEG). The electrode is then modified with copper nanoparticles via a one-step pulse electrodeposition technique to be characterized structurally, mechanically, and electrochemically using SEM, XRD, bending test, electrochemical impedance spectroscopy, and cyclic voltammetry to assess their stability and electrocatalytic activity. The laser irradiation of PI results in 3D porous graphene structure formation that increases electron transfer rate and the electrochemically active surface area. Copper deposition improves the sensitivity of LEG by its high conductivity.

• Periodical: Materials Science Forum (Volume 1075)
• Pages: 39-47
• DOI: https://doi.org/10.4028/p-gk9452
• Online since: November 2022
• Authors: Betty Edem Nugba*, Ahmed Abd El-Moneim, Ahmed Osman
• Keywords: Biosensing, Composite, Copper, Electrodeposition, Graphene, Nanocomposite, Pulse Galvanization

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