Laser-induced graphenization of textile yarn for wearable electronics application. (24th August 2021)

• Record Type: Journal Article
• Authors: Parmeggiani, Matteo; Stassi, Stefano; Fontana, Marco; Bianco, Stefano; Catania, Felice; Scaltrito, Luciano; Lamberti, Andrea
• Is Part Of: Smart materials and structures. Volume 30:Number 10(2021)
• Publication Date: 2021-08-24
• Subjects: laser-induced graphene -- textile yarn -- wearable electronics -- sensors; Smart materials -- Periodicals; Strucural design -- Periodicals; 620.11
• DOI: 10.1088/1361-665X/ac182c
• Languages: English
• ISSNs: 0964-1726

Abstract

Abstract: The present paper deals with the selective laser writing of textile yarns in order to induce a conductive path useful for smart textiles application. The incident power of the laser induces a conversion of an aramid fiber surface into graphene-based conductive material with tunable electrical properties depending on the laser writing parameters. The physical-chemical properties of the resulting smart yarns have been intensively characterized by electron microscopy, Raman spectroscopy, electrical and mechanical investigations. The results confirm the few-layer graphene fingerprint of the written paths onto the textile yarn with suitable properties for their application into electronic textiles. Indeed, a yarn-shape strain sensor with excellent performance has been developed and characterized to demonstrate the potential application of the proposed technology to the wearable electronic field.