Laser Patterning of Aligned Carbon Nanotubes Arrays: Morphology, Surface Structure, and Interaction with Terahertz Radiation
The patterning of arrays of aligned multi-walled carbon nanotubes (MWCNTs) allows creating metastructures for terahertz (THz) applications. Here, the strips and columns from MWCNTs vertically grown on silicon substrates are prepared using CO<sub>2</sub> laser treatment. The tops of the p...
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| author | Olga V. Sedelnikova Dmitriy V. Gorodetskiy Alexander G. Kurenya Kseniya I. Baskakova Elena V. Shlyakhova Anna A. Makarova Gleb V. Gorokhov Dzmitry S. Bychanok Polina P. Kuzhir Sergey A. Maksimenko Lyubov G. Bulusheva Alexander V. Okotrub |
| author_facet | Olga V. Sedelnikova Dmitriy V. Gorodetskiy Alexander G. Kurenya Kseniya I. Baskakova Elena V. Shlyakhova Anna A. Makarova Gleb V. Gorokhov Dzmitry S. Bychanok Polina P. Kuzhir Sergey A. Maksimenko Lyubov G. Bulusheva Alexander V. Okotrub |
| author_sort | Olga V. Sedelnikova |
| collection | DOAJ |
| description | The patterning of arrays of aligned multi-walled carbon nanotubes (MWCNTs) allows creating metastructures for terahertz (THz) applications. Here, the strips and columns from MWCNTs vertically grown on silicon substrates are prepared using CO<sub>2</sub> laser treatment. The tops of the patterned arrays are flat when the laser power is between 15 and 22 W, and craters appear there with increasing power. Laser treatment does not destroy the alignment of MWCNTs while removing their poorly ordered external layers. The products of oxidative destruction of these layers deposit on the surfaces of newly produced arrays. The oxygen groups resulting from the CO<sub>2</sub> laser treatment improve the wettability of nanotube arrays with an epoxy resin. We show that the patterned MWCNT arrays absorb the THz radiation more strongly than the as-synthesized arrays. Moreover, the pattern influences the frequency behavior of the absorbance. |
| first_indexed | 2024-03-10T10:26:07Z |
| format | Article |
| id | doaj.art-306658ca10694e019055e5fc596fb23c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T10:26:07Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-306658ca10694e019055e5fc596fb23c2023-11-22T00:00:06ZengMDPI AGMaterials1996-19442021-06-011412327510.3390/ma14123275Laser Patterning of Aligned Carbon Nanotubes Arrays: Morphology, Surface Structure, and Interaction with Terahertz RadiationOlga V. Sedelnikova0Dmitriy V. Gorodetskiy1Alexander G. Kurenya2Kseniya I. Baskakova3Elena V. Shlyakhova4Anna A. Makarova5Gleb V. Gorokhov6Dzmitry S. Bychanok7Polina P. Kuzhir8Sergey A. Maksimenko9Lyubov G. Bulusheva10Alexander V. Okotrub11Nikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, RussiaPhysical Chemistry, Institute of Chemistry and Biochemistry, Free University of Berlin, 14195 Berlin, GermanyInstitute for Nuclear Problems, Belarusian State University, 11 Bobruiskaya str., 220006 Minsk, BelarusInstitute for Nuclear Problems, Belarusian State University, 11 Bobruiskaya str., 220006 Minsk, BelarusInstitute for Nuclear Problems, Belarusian State University, 11 Bobruiskaya str., 220006 Minsk, BelarusInstitute for Nuclear Problems, Belarusian State University, 11 Bobruiskaya str., 220006 Minsk, BelarusNikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, RussiaNikolaev Institute of Inorganic Chemistry SB RAS, 630090 Novosibirsk, RussiaThe patterning of arrays of aligned multi-walled carbon nanotubes (MWCNTs) allows creating metastructures for terahertz (THz) applications. Here, the strips and columns from MWCNTs vertically grown on silicon substrates are prepared using CO<sub>2</sub> laser treatment. The tops of the patterned arrays are flat when the laser power is between 15 and 22 W, and craters appear there with increasing power. Laser treatment does not destroy the alignment of MWCNTs while removing their poorly ordered external layers. The products of oxidative destruction of these layers deposit on the surfaces of newly produced arrays. The oxygen groups resulting from the CO<sub>2</sub> laser treatment improve the wettability of nanotube arrays with an epoxy resin. We show that the patterned MWCNT arrays absorb the THz radiation more strongly than the as-synthesized arrays. Moreover, the pattern influences the frequency behavior of the absorbance.https://www.mdpi.com/1996-1944/14/12/3275CNT arrayslaser patterningSEMXPSNEXAFSRaman |
| spellingShingle | Olga V. Sedelnikova Dmitriy V. Gorodetskiy Alexander G. Kurenya Kseniya I. Baskakova Elena V. Shlyakhova Anna A. Makarova Gleb V. Gorokhov Dzmitry S. Bychanok Polina P. Kuzhir Sergey A. Maksimenko Lyubov G. Bulusheva Alexander V. Okotrub Laser Patterning of Aligned Carbon Nanotubes Arrays: Morphology, Surface Structure, and Interaction with Terahertz Radiation Materials CNT arrays laser patterning SEM XPS NEXAFS Raman |
| title | Laser Patterning of Aligned Carbon Nanotubes Arrays: Morphology, Surface Structure, and Interaction with Terahertz Radiation |
| title_full | Laser Patterning of Aligned Carbon Nanotubes Arrays: Morphology, Surface Structure, and Interaction with Terahertz Radiation |
| title_fullStr | Laser Patterning of Aligned Carbon Nanotubes Arrays: Morphology, Surface Structure, and Interaction with Terahertz Radiation |
| title_full_unstemmed | Laser Patterning of Aligned Carbon Nanotubes Arrays: Morphology, Surface Structure, and Interaction with Terahertz Radiation |
| title_short | Laser Patterning of Aligned Carbon Nanotubes Arrays: Morphology, Surface Structure, and Interaction with Terahertz Radiation |
| title_sort | laser patterning of aligned carbon nanotubes arrays morphology surface structure and interaction with terahertz radiation |
| topic | CNT arrays laser patterning SEM XPS NEXAFS Raman |
| url | https://www.mdpi.com/1996-1944/14/12/3275 |
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