Transition metal chalcogenides: Electronic structure, preparation, and structural tailoring to regulate microwave absorption performance

Transition metal chalcogenides (TMCs) have received unprecedented attention in the field of microwave absorption (MA) materials due to their unique electronic structure, physicochemical properties, diverse element types and combinations, and rich structures. Therefore, it is meaningful to establish the relationship between the microstructure of TMCs-based materials and their EM response. In this review, the electronic structure and preparation methods of TMCs have been elucidated, and various structural design strategies for regulating MA performance have been analyzed. The advantages of methods such as conduction-relaxation competition, interface engineering, defect engineering, dielectric-magnetic synergy, phase control and other methods have been elaborated. In addition, the current challenges and future development directions have been summarized. This review can provide new insights into the design and regulation of TMCs-based MA materials.