Partial quenching of electronic Raman scattering in double-wall carbon nanotubes by interlayer coupling

Levshov, Dmitry; Avramenko, Marina; Erkens, Maksiem; Tran, Huy-Nam; Cao, Thi Thanh; Nguyen, Van Lap; Flahaut, Emmanuel; Popov, V. N.; Zahab, Ahmed-Azmi; Sauvajol, Jean‐Louis; Arenal, Raúl; Wenseleers, Wim; Cambré, Sofie; Paillet, Matthieu

doi:10.1016/j.carbon.2022.12.003

Cited by 6 publications

(6 citation statements)

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“…This can be illustrated by the simplest and yet best-studied 1D vdW structures, which are double-walled carbon nanotubes (DWCNTs) . Raman spectroscopy, for example, can accurately estimate the diameters and interlayer distances of DWCNTs by analyzing the radial breathing modes (RBM) , and G modes or probe the metallicity of the layers based on the G line shape or electronic Raman scattering peaks . The exact inner@outer tube combinations of DWCNTs can be identified by inspecting the RBM frequencies and transition energies in the Raman excitation profiles influenced by moiré-induced vibrational coupling , or based on the optical features originating from the intertube transitions in the Rayleigh spectra, , optical absorption spectra and Raman excitation profiles .…”

Section: Introductionmentioning

confidence: 99%

“… 7 Raman spectroscopy, for example, can accurately estimate the diameters and interlayer distances of DWCNTs by analyzing the radial breathing modes (RBM) 14 , 15 and G modes 16 or probe the metallicity of the layers based on the G line shape 17 or electronic Raman scattering peaks. 18 The exact inner@outer tube combinations of DWCNTs can be identified by inspecting the RBM frequencies and transition energies in the Raman excitation profiles influenced by moiré-induced vibrational coupling 19 , 20 or based on the optical features originating from the intertube transitions in the Rayleigh spectra, 21 , 22 optical absorption spectra and Raman excitation profiles. 23 Alternatively, they can be deduced from inspecting the intertube energy transfer peaks as was shown recently by Erkens et al combining absorption spectroscopy, photoluminescence excitation spectroscopy (PLE), and tunable Raman spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the Efficiency of Boron Nitride Coating in Single-Walled Carbon-Nanotube-Based 1D Heterostructure Films by Optical Spectroscopy

Wang,

Levshov,

Otsuka

et al. 2024

ACS Nano

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Single-walled carbon nanotube (SWCNT) films exhibit exceptional optical and electrical properties, making them highly promising for scalable integrated devices. Previously, we employed SWCNT films as templates for the chemical vapor deposition (CVD) synthesis of one-dimensional heterostructure films where boron nitride nanotubes (BNNTs) and molybdenum disulfide nanotubes (MoS 2 NTs) were coaxially nested over the SWCNT networks. In this work, we have further refined the synthesis method to achieve precise control over the BNNT coating in SWCNT@BNNT heterostructure films. The resulting structure of the SWCNT@BNNT films was thoroughly characterized using a combination of electron microscopy, UV−vis−NIR spectroscopy, Fouriertransform infrared (FT-IR) spectroscopy, and Raman spectroscopy. Specifically, we investigated the pressure effect induced by BNNT wrapping on the SWCNTs in the SWCNT@BNNT heterostructure film and demonstrated that the shifts of the SWCNT's G and 2D (G′) modes in Raman spectra can be used as a probe of the efficiency of BNNT coating. In addition, we studied the impact of vacuum annealing on the removal of the initial doping in SWCNTs, arising from exposure to ambient atmosphere, and examined the effect of MoO 3 doping in SWCNT films by using UV−vis−NIR spectroscopy and Raman spectroscopy. We show that through correlation analysis of the G and 2D (G′) modes in Raman spectra, it is possible to discern distinct types of doping effects as well as the influence of applied pressure on the SWCNTs within SWCNT@BNNT heterostructure films. This work contributes to a deeper understanding of the strain and doping effect in both SWCNTs and SWCNT@BNNTs, thereby providing valuable insights for future applications of carbon-nanotube-based one-dimensional heterostructures.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluating the Efficiency of Boron Nitride Coating in Single-Walled Carbon-Nanotube-Based 1D Heterostructure Films by Optical Spectroscopy

Wang,

Levshov,

Otsuka

et al. 2024

ACS Nano

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“…Single-wall carbon nanotubes have diverse applications; however, their inability to dissolve in common solvents significantly limits their potential use in critical applications such as catalyst supports, organic and inorganic polymer composites, field effect transistors, gas storage materials, reinforcing agents, and environmental biological sensors. ,,, Moreover, wiring nanostructures with effective electrical contact and percolation is a major challenge in conductive composites, electrical energy storage, and photovoltaic nanoscience. Remarkably, compared to SWNTs, oxidized DWNTs retain their electrical conductivity much better due to the intact tubes of W-DWNTs providing a continuous conductive pathway that would otherwise be shortened due to sidewall functionalized SWNTs.…”

Section: Introductionmentioning

confidence: 99%

Development and Optimization of Water-Soluble Double-Walled Carbon Nanotubes by Effective Surface Treatment of Inner Walls

et al. 2023

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Carbon nanotubes are a significant class of nanomaterials with distinctive properties that have led to their application in a variety of fields, such as polymer composites, medicine, electronics, and material science. However, their nonpolar nature and insolubility in polar solvents limit their applications. To address this issue, highly functionalized and water-soluble double-walled carbon nanotubes (DWNTs) were developed by selectively oxidizing the inner walls of the DWNTs using oleum and nitric acid. The impact of reaction time on the chemical functionalization of DWNTs was investigated under two different reaction durations of 2 and 24 h. The presence of highly oxygenated functional groups resulted in high water solubility, which was confirmed by high- and low-frequency Raman spectroscopy, high-resolution transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET) method, and optical spectroscopy. The conductivity of highly water-soluble W-DWNTs (24 h) was 122.65 × 102 S cm–1. After annealing for 12 h at 140 °C, the W-DWNTs retained 72% of their conductivity (88.79 × 102 S cm–1).

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“…Double-walled carbon nanotubes (DWCNTs) are a unique class of carbon nanotubes (CNTs) that are particularly intriguing from a fundamental scientific perspective while also having a great deal of promise for technological applications. − Because of their coaxial configuration, they are physically, thermally, and structurally more stable than single-walled CNTs (SWCNTs). , More importantly, the outer walls of DWCNTs may be altered while still safeguarding the inner tube from harm . The results show that covalently functionalized DWCNTs have the potential to be used for simultaneous ultrahigh selective and sensitive chemical detection as well as performance comparisons with devices based on SWCNTs and multiwalled CNTs (MWCNTs) have revealed some benefits of the DWCNT strategy to nanoelectronics. − Consequently, it is very desirable to selectively synthesize DWCNTs rather than SWCNTs and MWCNTs.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Co–Mo-Based Metal–Organic Framework for Growth of Double-Walled Carbon Nanotubes

Luan,

Liu,

Zhang

et al. 2023

Inorg. Chem.

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Double-walled carbon nanotubes (DWCNTs) make up a unique class of carbon nanotubes (CNTs) that are particularly intriguing for scientific research and are promising candidates for technological applications. A more precise level of control and greater yields can be achieved via catalytic chemical vapor deposition (CCVD), which involves the breakdown of a carbonaceous gas over nanoparticles. The addition of molybdenum to the system can increase the selectivity with regard to the number of walls that exist in the obtained CNTs. As reported herein, we have designed and synthesized a novel Co−Mo-MOF, [Co(3-bpta) 1.5 (MoO 4 )]•H 2 O (where 3-bpta = N,N′-bis(3-pyridyl)terephthalamide), and employed the Co−Mo-MOF as a bimetallic catalyst precursor for the CCVD approach to prepare high-quality DWCNTs. The Co−Mo-MOF was employed after being calcined in N 2 and H 2 at 1100 °C and decomposing into CoO, CoMoO 4 , and MoO 3 . Existing CoMoO 4 is unaltered after reduction in H 2 at 1100 °C, while CoO and MoO 3 are converted into Co 0 and MoO 2 , and more CoMoO 4 is created at the expense of Co 0 and MoO 2 without clearly defining agglomeration. Finally, the interaction between metallic Co particles and C 2 H 4 is what initiates the formation of DWCNTs. In-depth discussion is provided in this paper regarding the mechanism underlying the high selectivity and activity of Co−Mo catalysts in regulating the development and structure of DWCNTs. The DWCNTs also offer excellence performance when they are used as water purification agents and as selective sorbents. This work opens a feasible way to use MOFs as a way to produce MWCNTs, thus blazing a new trail in the field of MOF-derived carbon-based materials.

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Partial quenching of electronic Raman scattering in double-wall carbon nanotubes by interlayer coupling

Cited by 6 publications

References 69 publications

Evaluating the Efficiency of Boron Nitride Coating in Single-Walled Carbon-Nanotube-Based 1D Heterostructure Films by Optical Spectroscopy

Evaluating the Efficiency of Boron Nitride Coating in Single-Walled Carbon-Nanotube-Based 1D Heterostructure Films by Optical Spectroscopy

Development and Optimization of Water-Soluble Double-Walled Carbon Nanotubes by Effective Surface Treatment of Inner Walls

Fabrication of a Co–Mo-Based Metal–Organic Framework for Growth of Double-Walled Carbon Nanotubes

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