Fabrication of Self-Assembling Carbon Nanotube Forest Fishnet Metamaterials
The investigation of the preparation of polystyrene (PS) nanosphere monolayers for the fabrication of carbon nanotube (CNT) forest fishnet metamaterial structures is studied in this paper, as a cheap alternative for top-down patterning methods. The precise control of dry etching conditions resulted...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/3/464 |
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| author | Adam Pander Takatsugu Onishi Akimitsu Hatta Hiroshi Furuta |
| author_facet | Adam Pander Takatsugu Onishi Akimitsu Hatta Hiroshi Furuta |
| author_sort | Adam Pander |
| collection | DOAJ |
| description | The investigation of the preparation of polystyrene (PS) nanosphere monolayers for the fabrication of carbon nanotube (CNT) forest fishnet metamaterial structures is studied in this paper, as a cheap alternative for top-down patterning methods. The precise control of dry etching conditions resulted in a highly controlled diameter of PS nanobeads, which were then used as a shadow mask for CNT fishnet preparation. The change of the size of the holes from 370 nm to 665 nm resulted in a gradual change of the CNT morphology from multi-walled to single-walled CNTs. The ultraviolet-visible (UV-Vis) reflectance spectra showed that the variation of the hole diameter resulted in the nonlinear light absorption in CNT fishnets that caused the change of the resonance frequency. The change of the fishnet wire width (inductance) and the hole size (capacitance) resulted in the blueshift of the broadband resonance frequency peak. The presented work has a significant potential to allow for the large-scale fabrication of CNT-based fishnet metamaterial structures for applications in energy harvesting, energy storage, solar cells, or optoelectronic devices, such as neuromorphic networks. |
| first_indexed | 2024-03-09T23:24:26Z |
| format | Article |
| id | doaj.art-60e0b63a8af94bcab116be1ea1b438a4 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T23:24:26Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-60e0b63a8af94bcab116be1ea1b438a42023-11-23T17:21:14ZengMDPI AGNanomaterials2079-49912022-01-0112346410.3390/nano12030464Fabrication of Self-Assembling Carbon Nanotube Forest Fishnet MetamaterialsAdam Pander0Takatsugu Onishi1Akimitsu Hatta2Hiroshi Furuta3Electronic and Photonic Systems Engineering, Department of Engineering, Graduate School of Engineering, Kochi University of Technology, Tosayamada, Kami City 782-8502, Kochi, JapanElectronic and Photonic Systems Engineering, Department of Engineering, Graduate School of Engineering, Kochi University of Technology, Tosayamada, Kami City 782-8502, Kochi, JapanElectronic and Photonic Systems Engineering, Department of Engineering, Graduate School of Engineering, Kochi University of Technology, Tosayamada, Kami City 782-8502, Kochi, JapanElectronic and Photonic Systems Engineering, Department of Engineering, Graduate School of Engineering, Kochi University of Technology, Tosayamada, Kami City 782-8502, Kochi, JapanThe investigation of the preparation of polystyrene (PS) nanosphere monolayers for the fabrication of carbon nanotube (CNT) forest fishnet metamaterial structures is studied in this paper, as a cheap alternative for top-down patterning methods. The precise control of dry etching conditions resulted in a highly controlled diameter of PS nanobeads, which were then used as a shadow mask for CNT fishnet preparation. The change of the size of the holes from 370 nm to 665 nm resulted in a gradual change of the CNT morphology from multi-walled to single-walled CNTs. The ultraviolet-visible (UV-Vis) reflectance spectra showed that the variation of the hole diameter resulted in the nonlinear light absorption in CNT fishnets that caused the change of the resonance frequency. The change of the fishnet wire width (inductance) and the hole size (capacitance) resulted in the blueshift of the broadband resonance frequency peak. The presented work has a significant potential to allow for the large-scale fabrication of CNT-based fishnet metamaterial structures for applications in energy harvesting, energy storage, solar cells, or optoelectronic devices, such as neuromorphic networks.https://www.mdpi.com/2079-4991/12/3/464carbon nanotubesfishnetmetamaterialblue shiftself-organizationlarge scale |
| spellingShingle | Adam Pander Takatsugu Onishi Akimitsu Hatta Hiroshi Furuta Fabrication of Self-Assembling Carbon Nanotube Forest Fishnet Metamaterials Nanomaterials carbon nanotubes fishnet metamaterial blue shift self-organization large scale |
| title | Fabrication of Self-Assembling Carbon Nanotube Forest Fishnet Metamaterials |
| title_full | Fabrication of Self-Assembling Carbon Nanotube Forest Fishnet Metamaterials |
| title_fullStr | Fabrication of Self-Assembling Carbon Nanotube Forest Fishnet Metamaterials |
| title_full_unstemmed | Fabrication of Self-Assembling Carbon Nanotube Forest Fishnet Metamaterials |
| title_short | Fabrication of Self-Assembling Carbon Nanotube Forest Fishnet Metamaterials |
| title_sort | fabrication of self assembling carbon nanotube forest fishnet metamaterials |
| topic | carbon nanotubes fishnet metamaterial blue shift self-organization large scale |
| url | https://www.mdpi.com/2079-4991/12/3/464 |
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