Multifunctional MXene/Carbon Nanotube Janus Film for Electromagnetic Shielding and Infrared Shielding/Detection in Harsh Environments
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초록
내용
Multifunctional, flexible, and robust thin films capable of operating in demanding harsh temperature environments are crucial for various cutting-edge applications. This study presents a multifunctional Janus film Ti3C2Tx MXene/CNT film through strong hydrogen bonding. The hybrid film not only exhibits high electrical conductivity (4250 S cm−1), but also demonstrates robust mechanical strength and durability in both extremely low and high-temperature environments, showing exceptional resistance to thermal shock. This hybrid Janus film of 15 μm thickness reveals remarkable multifunctionality, including efficient electromagnetic shielding effectiveness of 72 dB in X band frequency range, excellent infrared (IR) shielding capability with an average emissivity of 0.09 (a minimal value of 0.02), superior thermal camouflage performance over a wide temperature range (− 1 to 300 °C), and outstanding IR detection capability characterized by a 44% increase in resistance when exposed to 250 W IR radiation.