Abstract
Electronic textiles are critical for wearable electronics and real-time health care monitoring. The use of cellulose fibers with conductive components to construct optimized materials for enhanced performance remains an ongoing mission. We report the use of continuous dip-coating of hydrogel fibers to fabricate conductive cellulose yarns (CCYs). Uniform, interwelded and compact silver nanowire (AgNW) networks are embedded on the surfaces of the cellulose yarns, after which a PEDOT:PSS passivation layer is applied to ensure the reliability and practicality of the CCYs. This unique AgNW network provids high electrical conductivity of the CCYs, high strain sensitivities and good Joule heating. Wearable fabric devices embroidered with CCYs exhibit superior performance in strain sensing and electrothermal insulation. This CCY realizes the organic combination of manufacturing, practicability and functionality in sustainable E-textiles. The CCY has the potential to enable scalable manufacturing of low-cost wearable sensors integrated into everyday clothes.
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