Flexible\nMXene/Silver Nanowire-Based Transparent Conductive\nFilm with Electromagnetic Interference Shielding and Electro-Photo-Thermal\nPerformance

Abstract

Transparent\nconductive film (TCF) is promising for optoelectronic\ninstrument applications. However, designing a robust, stable, and\nflexible TCF that can shield electromagnetic waves and work in harsh\nconditions remains a challenge. Herein, a multifunctional and flexible\nTCF with effective electromagnetic interference shielding (EMI) performance\nand outstanding electro-photo-thermal effect is proposed by orderly\ncoating Ti₃C₂T<i>_x</i> MXene\nand a silver nanowire (AgNW) hybrid conductive network using a simple\nand scalable solution-processed method. Typically, the air-plasma-treated\npolycarbonate (PC) film was sequentially spray-coated with MXene and\nAgNW to construct a highly conductive network, which was transferred\nand partly embedded into an ultrathin poly­(vinyl alcohol) (PVA) film\nusing spin coating coupled with hot pressing to enhance the interfacial\nadhesion. The peeled MXene/AgNW-PVA TCF exhibits an optimal optical\nand electrical performance of sheet resistance 18.3 Ω/sq and\ntransmittance 52.3%. As a consequence, the TCF reveals an effective\nEMI shielding efficiency of 32 dB in X-band with strong interfacial\nadhesion and satisfactory flexibility. Moreover, the high electrical\nconductivity and localized surface plasmon resonance (LSPR) effect\nof hybrid conductive network endow the TCF with low-voltage-driven\nJoule heating performance and excellent photothermal effect, respectively,\nwhich can ensure the normal functioning under extreme cold condition.\nIn view of the comprehensive performance, this work offers new solutions\nfor next-generation transparent EMI shielding challenges.