High-orientation, defect-rich and porous graphene films for excellent electromagnetic shielding and thermal management

Flexible CNT-MXene-CNT Film with Low Surface Conductance for High- and Low-Power Electromagnetic Absorption Protection

“…12 The thermal and nonthermal effects of high-power THz waves and water may cause thermal damage to cells, destroy the repair mechanism of cells, even induce cell death, and greatly increase the probability of canceration. 13 Until now, mainstream EMI shielding materials include intrinsic conductive polymers (polypyrrole, 15 polyaniline, 16 and polythiophene 17 ), carbon-based materials (CNTs, 18 graphene, 19,20 rGO, 20−22 and carbon black 23 ), metallic nanomaterials (copper nanofilm, 24 silver nanowires, 25,26 and silver nanoparticles 27 ), and two-dimensional (2D) transition metal carbides and/or nitrides (MXene). 28,29 However, whatever the compositions are, compact shielding materials with higher electromagnetic loss are usually accompanied by higher electrical conductivity.…”

“…Until now, mainstream EMI shielding materials include intrinsic conductive polymers (polypyrrole, polyaniline, and polythiophene), carbon-based materials (CNTs, graphene, , rGO, − and carbon black), metallic nanomaterials (copper nanofilm, silver nanowires, , and silver nanoparticles), and two-dimensional (2D) transition metal carbides and/or nitrides (MXene). , However, whatever the compositions are, compact shielding materials with higher electromagnetic loss are usually accompanied by higher electrical conductivity. , The inherent high electrical conductivity leads to intense electromagnetic reflection, especially for millimeter and submillimeter waves, at the surface of the material. Once the reflected waves return to the environment, intense secondary radiation is generated, which causes more serious EM pollution and environmental problems.…”