Recent advancements in the electromagnetic interference shielding performance of nanostructured materials and their nanocomposites: a review

Abstract

The increase in the use of electronic devices and communication systems and their critical applications in the military, industrial, commercial and consumer sectors have generated undesirable electromagnetic pollution, known as electromagnetic interference (EMI). This results in the lowering of their efficiency, including malfunctioning, and also has harmful effects on wildlife and humans. Therefore, in the last few decades, considerable research efforts have been focused on the shielding of this undesirable electromagnetic interference, leading to the development of efficient microwave absorption and EMI shielding materials. This article is focused on reviewing the electromagnetic interference shielding performance of carbonaceous, magnetic, and dielectric materials, their polymers, and intrinsically conducting polymer nanocomposites. The performances of core–shell nanocomposites and the importance of the hollow morphology in the development of high-performance microwave absorption and shielding materials are also reviewed. We also provide a conclusion and future perspectives on EMI shielding and microwave absorption.