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Borophene-Based Anisotropic Metamaterial Perfect Absorber for Refractive Index Sensing.

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Title: Borophene-Based Anisotropic Metamaterial Perfect Absorber for Refractive Index Sensing.
Authors: Lin, Zichen1 (AUTHOR), Yang, Haorui1,2 (AUTHOR), Jin, Gui1,2 (AUTHOR) s22060809028@smail.cczu.edu.cn, Zhu, Ying1,2 (AUTHOR), Tang, Bin1 (AUTHOR) btang@cczu.edu.cn
Source: Nanomaterials (2079-4991). Apr2025, Vol. 15 Issue 7, p509. 12p.
Subjects: Polarization of electromagnetic waves, Carrier density, Charge carrier mobility, Refractive index, Metamaterials, Electromagnetic wave absorption
Abstract: Borophene, as a novel two-dimensional (2D) material, has garnered significant interest due to its exceptional optoelectronic properties, including anisotropic plasmonic response high carrier mobility, etc. In this work, we theoretically propose a borophene-based anisotropic metamaterial perfect absorber using the finite-difference time-domain (FDTD) method. The research results show that the proposed metamaterial exhibits triple-band perfect electromagnetic absorption characteristics when the polarization direction of electromagnetic wave is along the zigzag direction of borophene, and the resonant absorption wavelengths can be adjusted by varying the carrier mobility of borophene. Furthermore, as an application of the proposed perfect absorber, we investigate the refractive sensing properties of the borophene-based metamaterial. When the carrier density of borophene is 4.0 × 1019 m−2, the maximum refractive index sensitivity of the designed absorber is up to 867 nm/RIU, with a figure of merit of 11.71 RIU−1, which has promising applications in the field of biochemical sensing and special environmental detection. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
  Group: Ti
  Data: Borophene-Based Anisotropic Metamaterial Perfect Absorber for Refractive Index Sensing.
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  Data: <searchLink fieldCode="AR" term="%22Lin%2C+Zichen%22">Lin, Zichen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Haorui%22">Yang, Haorui</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jin%2C+Gui%22">Jin, Gui</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> s22060809028@smail.cczu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Ying%22">Zhu, Ying</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tang%2C+Bin%22">Tang, Bin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> btang@cczu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Apr2025, Vol. 15 Issue 7, p509. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Polarization+of+electromagnetic+waves%22">Polarization of electromagnetic waves</searchLink><br /><searchLink fieldCode="DE" term="%22Carrier+density%22">Carrier density</searchLink><br /><searchLink fieldCode="DE" term="%22Charge+carrier+mobility%22">Charge carrier mobility</searchLink><br /><searchLink fieldCode="DE" term="%22Refractive+index%22">Refractive index</searchLink><br /><searchLink fieldCode="DE" term="%22Metamaterials%22">Metamaterials</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+wave+absorption%22">Electromagnetic wave absorption</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Borophene, as a novel two-dimensional (2D) material, has garnered significant interest due to its exceptional optoelectronic properties, including anisotropic plasmonic response high carrier mobility, etc. In this work, we theoretically propose a borophene-based anisotropic metamaterial perfect absorber using the finite-difference time-domain (FDTD) method. The research results show that the proposed metamaterial exhibits triple-band perfect electromagnetic absorption characteristics when the polarization direction of electromagnetic wave is along the zigzag direction of borophene, and the resonant absorption wavelengths can be adjusted by varying the carrier mobility of borophene. Furthermore, as an application of the proposed perfect absorber, we investigate the refractive sensing properties of the borophene-based metamaterial. When the carrier density of borophene is 4.0 × 1019 m−2, the maximum refractive index sensitivity of the designed absorber is up to 867 nm/RIU, with a figure of merit of 11.71 RIU−1, which has promising applications in the field of biochemical sensing and special environmental detection. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.3390/nano15070509
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 12
        StartPage: 509
    Subjects:
      – SubjectFull: Polarization of electromagnetic waves
        Type: general
      – SubjectFull: Carrier density
        Type: general
      – SubjectFull: Charge carrier mobility
        Type: general
      – SubjectFull: Refractive index
        Type: general
      – SubjectFull: Metamaterials
        Type: general
      – SubjectFull: Electromagnetic wave absorption
        Type: general
    Titles:
      – TitleFull: Borophene-Based Anisotropic Metamaterial Perfect Absorber for Refractive Index Sensing.
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            NameFull: Lin, Zichen
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            NameFull: Yang, Haorui
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            NameFull: Jin, Gui
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            NameFull: Zhu, Ying
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            NameFull: Tang, Bin
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            – D: 01
              M: 04
              Text: Apr2025
              Type: published
              Y: 2025
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            – TitleFull: Nanomaterials (2079-4991)
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