Nanomaterials with potential EMI shielding properties

Abstract

Nanomaterials exhibit unexpected superior properties such as electrical, magnetic, optical, etc., compared with bulk materials. In this chapter, electromagnetic interference (EMI) shielding properties of different nanomaterials based on metal, metal oxide, ceramic, conductive polymer-modified, and their hybrids are reviewed. The effects of size, shape, structure, and morphology of nanomaterials on EMI shielding properties were also discussed. EMI shielding is mainly realized by three mechanisms, which are absorption, reflection, and multiple reflections. In recent years, academic studies have mostly focused on hybrid nanostructures, which often combine absorption and reflection properties. Meanwhile, an evaluation covering most of the important advancements related to nanomaterials with potential EMI shielding properties is also provided.