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<p>We proposed a numerical investigation of a metal-MXene-metal-based metamaterial thermal absorber for the wide solar spectrum band. The proposed absorber is formed using the MXene material and a single array, as well as a 2 × 2 resonator array-based metal structure. The proposed structure was numerically investigated for different physical, metamaterial, and thermal parameters across the 0.1&#xa0;μm to 3.3&#xa0;μm wavelength spectrum. The optimized parameters of the proposed structure yield a minimum and maximum absorption amplitude of 80% and &gt; 99%, respectively, across the entire wavelength spectrum. The metamaterial absorber design also demonstrates the stability of the spectrum’s oblique angle incident up to 60 °. The effect of different optical parameters, such as refractive index, permittivity, and permeability, is demonstrated through the metamaterial behavior over the computed wavelength spectrum band for the proposed multilayered metamaterial absorber structure. This structure is also compared with the interference mode theory calculation to identify the structure’s overall absorption profile, which shows a variation of 10–20% in overall amplitude. This structure was also analysed for various thermal efficiency parameters, including spectral irradiance with AM1.5 and thermal radiation efficiency, as well as physical parameters such as unit cell length and temperature. The proposed structure can be crucial for designing parasitic solar absorber structures suitable for thermal systems and solar cell applications.</p>

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Metal-MXene-Metal based multilayered metamaterial ultrawideband absorber for thermal and solar absorption applications

  • 期刊论文

  • 发表日期：

    2025年9月9日

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  • Vishal Sorathiya,
  • Jusu M. Ngobeh,
  • Abdullah G. Alharbi,
  • Ahmad Alghamdi,
  • Amar Y. Jaffar

摘要

We proposed a numerical investigation of a metal-MXene-metal-based metamaterial thermal absorber for the wide solar spectrum band. The proposed absorber is formed using the MXene material and a single array, as well as a 2 × 2 resonator array-based metal structure. The proposed structure was numerically investigated for different physical, metamaterial, and thermal parameters across the 0.1 μm to 3.3 μm wavelength spectrum. The optimized parameters of the proposed structure yield a minimum and maximum absorption amplitude of 80% and > 99%, respectively, across the entire wavelength spectrum. The metamaterial absorber design also demonstrates the stability of the spectrum’s oblique angle incident up to 60 °. The effect of different optical parameters, such as refractive index, permittivity, and permeability, is demonstrated through the metamaterial behavior over the computed wavelength spectrum band for the proposed multilayered metamaterial absorber structure. This structure is also compared with the interference mode theory calculation to identify the structure’s overall absorption profile, which shows a variation of 10–20% in overall amplitude. This structure was also analysed for various thermal efficiency parameters, including spectral irradiance with AM1.5 and thermal radiation efficiency, as well as physical parameters such as unit cell length and temperature. The proposed structure can be crucial for designing parasitic solar absorber structures suitable for thermal systems and solar cell applications.