Multilayered MXene-Si-Metal based grating structure based nearly perfect absorber for the visible and infrared spectrum

We have conducted a computational study on a multi-layered grating structure composed of MXene-Si-Metal for visible and infrared frequencies. The suggested framework is examined across the wavelength range of 0.2–2.5 µm. We have analysed absorption and reflectance values for the various layers of the MXene and Si gratings (5, 10, and 15). This multilayered grating structure is numerically investigated using Finite element methods. The effect of the different metal resonators (Au and Ag) was also reported to identify the impact of metals on the resonating band. The multiple grating layers and resonator can allow tuning the effective resonance peak over this broad wavelength spectrum for various photonics applications—analysed absorption and reflectance values of several metal resonators to locate resonating peaks throughout a wide wavelength band. The proposed structure provides consistent absorption values for high incidence angles ranging from 0° to 80°. A multi-layered structure of MXene and silicon can create an infrared sensor, an ideal absorber, and optical communication applications.