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Titanium-Based Metasurfaces for Optoelectronics.

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Title: Titanium-Based Metasurfaces for Optoelectronics.
Authors: Kavokina, Stella1,2,3 (AUTHOR) caojunhui@westlake.edu.cn, Samyshkin, Vlad3 (AUTHOR) abramov.andrey.1997@gmail.com, Cao, Junhui1,2 (AUTHOR) a.kavokin@westlale.edu.cn, Abramov, Andrey3 (AUTHOR) osipov@vlsu.ru, Osipov, Anton3 (AUTHOR) nazutojake99@gmail.com, Essaka, Samuel Pier3 (AUTHOR) nazrullonazar2000@gmail.com, Khalimov, Nazrullo3 (AUTHOR) bodunov-2002@mail.ru, Bodunov, Dmitry3 (AUTHOR), Kavokin, Alexey1,2 (AUTHOR)
Source: Nanomaterials (2079-4991). Jan2024, Vol. 14 Issue 1, p56. 10p.
Subjects: Nanowires, Light absorption, Optoelectronics, Laser pumping, Titanium dioxide, Metallic surfaces, Fullerenes, Optical conductivity
Abstract: We report on the fabrication method that enables the development of transparent conductive metasurfaces capable of the resonant absorption of light in specific frequency bands. The approach is based on embedding linear sp-carbon chains and metallic nanoparticles in a porous matrix of titanium dioxide (TiO2). We develop a blading technique for the formation of a periodical grating of TiO2 microtubes at the macroscale. The method allowed us to maintain the periodicity of an array of microtubes with an accuracy of ±5%. Tuning the diameter of the tubes and the concentration of metallic nanoparticles, we achieved the regime of strong resonant absorption of the fabricated complex metasurface in the visible range. Computer simulations helped revealthe regime of TE/TM-polarized laser pumping that allowed for the most efficient transformation of light energy into electric current flow. In the studied structures, the sp-carbon clusters embedded inside transparent titanium dioxide tubes play the role of atomic wires. The interplay between efficient conductivity through carbon wires and the plasmon-enhanced absorption of light allows the design of photodiode structures based on periodical metasurfaces and characterized by highly selective optical sensitivity. [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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  Data: Titanium-Based Metasurfaces for Optoelectronics.
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  Data: <searchLink fieldCode="AR" term="%22Kavokina%2C+Stella%22">Kavokina, Stella</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> caojunhui@westlake.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Samyshkin%2C+Vlad%22">Samyshkin, Vlad</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> abramov.andrey.1997@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Cao%2C+Junhui%22">Cao, Junhui</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> a.kavokin@westlale.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Abramov%2C+Andrey%22">Abramov, Andrey</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> osipov@vlsu.ru</i><br /><searchLink fieldCode="AR" term="%22Osipov%2C+Anton%22">Osipov, Anton</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> nazutojake99@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Essaka%2C+Samuel+Pier%22">Essaka, Samuel Pier</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> nazrullonazar2000@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Khalimov%2C+Nazrullo%22">Khalimov, Nazrullo</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> bodunov-2002@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Bodunov%2C+Dmitry%22">Bodunov, Dmitry</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kavokin%2C+Alexey%22">Kavokin, Alexey</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="DE" term="%22Nanowires%22">Nanowires</searchLink><br /><searchLink fieldCode="DE" term="%22Light+absorption%22">Light absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Optoelectronics%22">Optoelectronics</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+pumping%22">Laser pumping</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+dioxide%22">Titanium dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Metallic+surfaces%22">Metallic surfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Fullerenes%22">Fullerenes</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+conductivity%22">Optical conductivity</searchLink>
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  Data: We report on the fabrication method that enables the development of transparent conductive metasurfaces capable of the resonant absorption of light in specific frequency bands. The approach is based on embedding linear sp-carbon chains and metallic nanoparticles in a porous matrix of titanium dioxide (TiO2). We develop a blading technique for the formation of a periodical grating of TiO2 microtubes at the macroscale. The method allowed us to maintain the periodicity of an array of microtubes with an accuracy of ±5%. Tuning the diameter of the tubes and the concentration of metallic nanoparticles, we achieved the regime of strong resonant absorption of the fabricated complex metasurface in the visible range. Computer simulations helped revealthe regime of TE/TM-polarized laser pumping that allowed for the most efficient transformation of light energy into electric current flow. In the studied structures, the sp-carbon clusters embedded inside transparent titanium dioxide tubes play the role of atomic wires. The interplay between efficient conductivity through carbon wires and the plasmon-enhanced absorption of light allows the design of photodiode structures based on periodical metasurfaces and characterized by highly selective optical sensitivity. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  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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      – Type: doi
        Value: 10.3390/nano14010056
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 56
    Subjects:
      – SubjectFull: Nanowires
        Type: general
      – SubjectFull: Light absorption
        Type: general
      – SubjectFull: Optoelectronics
        Type: general
      – SubjectFull: Laser pumping
        Type: general
      – SubjectFull: Titanium dioxide
        Type: general
      – SubjectFull: Metallic surfaces
        Type: general
      – SubjectFull: Fullerenes
        Type: general
      – SubjectFull: Optical conductivity
        Type: general
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      – TitleFull: Titanium-Based Metasurfaces for Optoelectronics.
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            – D: 01
              M: 01
              Text: Jan2024
              Type: published
              Y: 2024
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