Tailoring carbon-based nanofiber microstructures for electromagnetic absorption, shielding, and devices

Abstract

Carbon-based nanofibers have been a hot spot in various fields due to their distinctive nanostructures, functions, and performances. Especially in the field of electromagnetic (EM) functional materials and devices, carbon-based...

Conductive polymer nanocomposite incorporated with carbon nanotubes for effective electromagnetic interference shielding: A numerical study

“…The presence of a dense conductivity network enhances the pathway for electron transport 66 . The electron transport results in the generation of conduction loss, which leads to the conversion of EM waves into thermal energy 67 . Multiple internal reflections occur due to the scattering effects caused by material inhomogeneity.…”

“…66 The electron transport results in the generation of conduction loss, which leads to the conversion of EM waves into thermal energy. 67 Multiple internal reflections occur due to the scattering effects caused by material inhomogeneity. Consequently, the total SE (SE T ) can be further divided into three components: SE due to reflection (SE R ), SE due to absorption (SE A ), and SE due to multiple internal reflections (SE M ).…”

Ultra-thin Ni@nitrogen-doped polyaniline-derived carbon composites with broadband electromagnetic wave absorption

“…10. 21 The collapsed structure of the carbonized composites could be responsible for the enhanced EMW attenuation 48,49 due to the enrichment in multiple scattering and interfacial polarization, and the increase in the content of internal defects and vacancies brought out much more defect polarization. Nitrogen doping in polyanilinederived carbon provided additional polarization sites for dipole polarization.…”

Recent Progress of One-Dimensional Nanomaterials for Microwave Absorption: A Review

“…In addition, researchers constructed novel 1D nanomaterials by reasonable compositional regulation and microstructure design, thereby endowing the electromagnetic wave absorber with multiple scatterings and reflection ability. As is well-known, carbon materials, including carbon nanotubes (CNTs) and carbon nanofibers (CNFs), have proven their application potential in EM functional materials due to their favorable dielectric loss . Combining carbon materials with magnetic metals is a common method to improve EMWA performance.…”