Research progress on the microwave absorbers with core–shell micro-structure design
Jiatong Liu, Jie Dong, Mengyao Tang, Yifan Si, Yuepeng Wang, Runjun Sun
Abstract
• A comprehensive review of the latest research trends in core–shell structured wave-absorbing materials. • An in-depth analysis of the key regulatory mechanisms of micro-structure design on material performance. • Forward-looking perspectives on future development trends of core-shell structured electromagnetic wave-absorbing materials. • Providing important theoretical foundations and technical guidance for the development of high-performance wave-absorbing materials. The rapid development of technology has promoted the popularization and application of electromagnetic waves in many fields such as communication, radar, medical care, and military. Electromagnetic waves are a double-edged sword, bringing convenience to people, also causing pollution. Therefore, the research and application of microwave absorption materials are particularly important. Among them, the micro-structure as one of the key factors of the absorbing materials can optimize the performance of the absorbing material, attracting the attention and in-depth discussion of the majority of scientific researchers. This article outlines the principle of absorbing materials, details the research progress of three types of micro-structured design and summarizes its impact on the absorbing performance. In addition to good absorption properties, absorbing materials still need to be further explored in other directions, such as low cost, convenient preparation and versatility.