Recent Progress of Research into Conductive Nanomaterials for Use in Electromagnetic Interference Shields

Since the breakthrough in the field of wireless communication and electronic equipment, a number of materials have been investigated for potential use as electromagnetic interference (EMI) shields. Such shields are critical, as they prevent the detrimental effects of electromagnetic waves on electronics and human health. Metallic materials, carbon-based materials, and MXene have all been studied for incorporation into EMI shielding to improve handleability, processability, efficiency, weight, and cost effectiveness. Developed films exhibit distinct shielding performances rooted in their distinct characteristics, determined by the type of material used, allowing materials to reflect, absorb, or achieve multiple internal reflection of electromagnetic waves. In this paper, we review the state of research concerning EMI shielding.