Abstract
For an effective EMI shielding, materials should have high electrical
conductivity as EMI attenuation is a sum of relfection, absorption, and multiple
relfections which requires the existence of mobile charge carriers (electrons or holes),
electric and/or magnetic dipoles, usually provided by materials having high dielectric
constants (ε) or magnetic permeability (μ) and the large surface area or interface area.
Until now, a metal shroud was the material of choice as an EMI shield. However,
metal fillers add additional weight and are susceptible to corrosion, making them less
desirable. Therefore, we have focused on new emerging two-dimensional 2D
nanomaterials that are light in weight and have a low cost. Here, the focus is to address
the challenges in their synthesis especially transition metal carbides (MXenes), MoS2,
functionalized graphene/ferromagnetic conducting polymer composites, and their
fabrication for EMI reductions. These articles also evaluate and explain the recent
progress explicitly and underline the complex interplay of its intrinsic properties of
2D nanostructured materials (MXene, MoS2, Graphene/ferromagnetic polymer
composite) as a potential candidate for EMI shielding and evaluate their
electromagnetic compatibility. The chapter will cover the facets related to a newly
emerging area of EMI shields in the automotive industry, especially lithium-ion
battery-operated electric vehicles and self-driving cars, high-speed wireless
communication devices, and next-generation mobile phones with 4G and 5G
technology.
Keywords: Dielectric measurements, Graphene, Graphene/ferromagnetic Polymer composites, Hydrothermal reactions, MXene, MoS2.