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<p>We propose a novel borophene-based metamaterial absorber for ultraviolet (UV) and infrared (IR) applications. This multi-layered structure, composed of borophene, magnesium fluoride, tungsten, silicon, and silver resonators, was numerically analyzed across a broad frequency spectrum (100–2500 THz) using finite element method (FEM) simulations. The absorber’s performance was investigated by varying physical parameters such as layer heights, incident angles, and resonator modes. The structure consistently exhibits over 90% peak absorption at multiple THz frequencies and maintains an average absorption efficiency exceeding 60% within the 200–2500 THz range. Notably, these absorption characteristics remain relatively stable despite variations in physical parameters, with a maximum impact of 5–10% on absorption efficiency. By comparing the absorption spectrum and the standardize AM 1.5 spectrum, we demonstrate the structure’s potential for efficient solar energy harvesting. Moreover, the absorber maintains high absorption efficiency even at oblique angles of incidence up to 60°. This innovative design can be a foundational component for parasitic absorber devices in solar cells and other sensing and ultra-wideband UV and IR absorption applications.</p>

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Numerical Investigation on Borophene-Based Ultraviolet and Infrared Metamaterial Absorber

  • 期刊论文

  • 发表日期：

    2025年1月8日

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  • Abdulkarem H. M. Almawgani,
  • Adam R. H. Alhawari,
  • Zen Sbeah,
  • Vishal Sorathiya,
  • Diksha Chauhan

摘要

We propose a novel borophene-based metamaterial absorber for ultraviolet (UV) and infrared (IR) applications. This multi-layered structure, composed of borophene, magnesium fluoride, tungsten, silicon, and silver resonators, was numerically analyzed across a broad frequency spectrum (100–2500 THz) using finite element method (FEM) simulations. The absorber’s performance was investigated by varying physical parameters such as layer heights, incident angles, and resonator modes. The structure consistently exhibits over 90% peak absorption at multiple THz frequencies and maintains an average absorption efficiency exceeding 60% within the 200–2500 THz range. Notably, these absorption characteristics remain relatively stable despite variations in physical parameters, with a maximum impact of 5–10% on absorption efficiency. By comparing the absorption spectrum and the standardize AM 1.5 spectrum, we demonstrate the structure’s potential for efficient solar energy harvesting. Moreover, the absorber maintains high absorption efficiency even at oblique angles of incidence up to 60°. This innovative design can be a foundational component for parasitic absorber devices in solar cells and other sensing and ultra-wideband UV and IR absorption applications.