Abstract
Integration of sensor, energy harvesting and flexible textile has been considered as a promising strategy applied in the fields of wearable electrics, artificial intelligence. Herein, flexible, multifunctional conductive textiles consist of quaternary composites of two-dimensional (2D) vanadium carbides (V2CTx) MXene, highly conductive poly(3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS), liquid metal (LM), and one-dimensional carbon nanotube (CNT) (for simplicity denoted as MPLC) were fabricated to construct a three-dimensional (3D) network with remarkable conductivity and Joule heating properties for applications in wearable heaters and TENG based on-skin sensors by adopting a simple method of dip-coating. The TENG using MPLC as the electrode and the triboelectric layer demonstrates excellent energy harvesting capability. TENG based self-powered sensor shows an open circuit voltage (Voc) of 118.5 V, short circuit current (Isc) of 1.23 μA and maximum output power of 57.12 μW under mechanical friction. In addition, fast Joule heating in response to a saturation temperature of 221 °C at a driving voltage of 3 V is achieved. Our study provides a simple, lightweight, and effective multifunctional system with integrated characteristics of superior sensing and electrothermal conversion, which are highly desired for applications in wearable electronics, intelligent electronics, and personal self-heating system.
Published Version
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