Broad-spectrum infrared metamaterial absorbers based on MXenes for solar cell applications

We presented the numerical investigation of the multilayered structure formed with Tungsten-MgF₂-SiO₂-MXene-Au. This study presents several solar absorber materials that exploit their unique properties for efficient absorption and polarization over an extensive terahertz frequency range (100–2500 THz). The numerical investigation shows the effect of the effect of chosen materials for the solar absorbers with different values of height and shape. Combination of the proposed metamaterial, achieving high solar absorption capacity at the resonant frequency across an ultrawideband spectrum over the infrared and UV spectrum. The proposed solar absorber structure exhibits an exceptional absorption capacity exceeding 99.99% over a broad frequency range of 100–1600 THz. The proposed structure and its efficiency can be sustained even at an oblique angle of incidence of 60°. With this remarkably high absorption capability, the proposed structure is a promising design for solar absorbers in energy generation applications. This study demonstrates the feasibility of manufacturing the proposed structure according to the design parameters, allowing for the achievement of maximum absorption within an infrared and UV spectrum.