Abstract

High-performance electronic films with multifunctional properties for personal therapy and health management are highly desirable for integrated smart wearable electronic devices. By utilizing a double-layer coating strategy and the synergistic effect of heterostructures, a carboxylated carbon nanotubes@MXene/cellulose film (CNTs@MXene/CFs) with interconnected conductive network was prepared via a facile dip-coating and spray-coating approach. The Joule heating, photothermal conversion and electromagnetic interference (EMI) shielding performance were realized due to the synergetic effect of MXene and CNTs, delivering an intriguing Joule heating performance (154 °C at an applied voltage of 4 V), an outstanding photothermal conversion efficiency (105 °C at 4 suns) and a remarkable EMI shielding effectiveness of 32.62 dB. This work provides a feasible pathway to fabricate high-performance versatile films and offers insights into the design of highly integrated multifunctional devices for personal medical therapy application in future therapy electronic fields.

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