MoS₂ Nanostructures with the 1T Phase for\nElectromagnetic Wave Absorption

Abstract

Electromagnetic wave absorbers have\nhigh research values and application\nprospects in civil equipment and military informatization fields.\nAs a typical 2D material, MoS₂ has grabbed considerable\nattention for electromagnetic wave absorption due to its large specific\nsurface area, outstanding physical and chemical characteristics, and\nexcellent electronic transmission properties. In particular, 1T-MoS₂ has higher electric conductivity and outstanding dielectric\nloss characteristics, which has promising potential for enhancing\nelectromagnetic wave absorption performance. In this article, the\n3D flower-like MoS₂ nanostructures with high contents of\nthe 1T phase were triumphantly synthesized by the one-step hydrothermal\nmethod. The results show that the effective frequency bandwidth of\nreflection loss (RL) ≤ −10 dB of the 1T/2H-MoS₂ nanostructures with a filler loading ratio of 60 wt % is 5.36 GHz\nwith a matching thickness of 2.04 mm. The maximum RL value of −63.78\ndB at 11.12 GHz is achieved with a matching thickness of 2.57 mm.\nThis is a better way to develop high-performance electromagnetic wave\nabsorbers with 1T/2H-MoS₂ 2D materials.