M S Hareesh, Joseph Praveen, George Sumesh
St. Joseph's College of Engineering and Technology Palai India.
St. Joseph's College (Autonomous) Moolamattom India.
Nanoscale Adv. 2025 May 21. doi: 10.1039/d5na00240k.
Rapid advancements in nanotechnology have led to electronic devices with densely integrated components, contributing to increased Electromagnetic Interference (EMI) pollution. EMI, a high-frequency electromagnetic signal, disrupts electronic circuits and can originate from external devices or within the affected component itself. Beyond causing electronic malfunctions, EMI exposure leads to health risks. This review discusses the Electromagnetic Interference Shielding (EMIS) mechanisms, such as reflection, absorption, and multiple reflection. It also examines recent advancements in EMIS materials, based on carbon-based, polymer-based, and carbon-polymer hybrid nanocomposites. It also investigates carbon-based materials, carbon nanotubes, graphene, and activated carbon due to their high electrical conductivity and EMI absorption properties. Polymer-based composites, incorporated with conductive polymers and metal oxides, are evaluated for their flexibility and processability. Carbon-polymer hybrid nanocomposites are highlighted due to their synergistic effects, combining the strengths of both components to achieve a high EMIS performance. This review also addresses the materials that are sustainable and recyclable for EMIS applications.
纳米技术的飞速发展催生了具有密集集成组件的电子设备，这导致了电磁干扰（EMI）污染的增加。EMI是一种高频电磁信号，会干扰电子电路，其来源可能是外部设备，也可能是受影响组件本身。除了导致电子故障外，暴露于EMI还会带来健康风险。本综述讨论了电磁干扰屏蔽（EMIS）机制，如反射、吸收和多次反射。它还研究了基于碳基、聚合物基和碳-聚合物杂化纳米复合材料的EMIS材料的最新进展。由于其高导电性和EMI吸收特性，还对碳基材料、碳纳米管、石墨烯和活性炭进行了研究。对含有导电聚合物和金属氧化物的聚合物基复合材料的柔韧性和可加工性进行了评估。碳-聚合物杂化纳米复合材料因其协同效应而受到关注，它结合了两种组分的优势，以实现高EMIS性能。本综述还讨论了适用于EMIS应用的可持续和可回收材料。
