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Evaluating SWCNT assembly properties from the temperature dependence of electrical resistivity
Shandakov S. D., Kosobutsky A. V., Vershinina A., Gordaya O., Chirkova I., Russakov D., Lomakin M., Rybakov M., Chetyrkina M. R., Serebrennikova S., Butt H., Novikov I., Krasnikov D., Nasibulin A.
Chowdhury U., Mondal S., Dey S. et al., Journal of the american chemical society 2026 Vol. 148 No. 23 P. 24538–24550
Covalent functionalization offers a versatile platform to engineer carbon nanotube properties for optoelectronics applications. We demonstrate by atomistic quantum dynamics simulation that covalent functionalization can renormalize the CNT band gap, split the degenerate CNT band edge states, and strongly influence charge carrier separation and recombination dynamics. Open-ring CNT functionalization (O-CNT) largely retains the π-conjugation, whereas ...
Added: June 1, 2026
Chetyrkina M. R., A Butt H., Bulavskiy M. O. et al., Advanced Engineering Materials 2024
Added: February 10, 2026
Gleb Vaganov, Didenko A., Popova E. et al., Polymer Engineering and Science 2025 P. 1–9
Nanomodified polyimide powders based on partially crystalline polyimide (PI) and single- walled carbon nanotubes (SWCNT) were obtained in the course of the synthesis of polyimide powder by chemical imidization. The nanomodified polyimide powders were used to prepare bulk materials (moldings) by injection molding. Differential scanning calorimetry and scanning electron microscopy showed that carbon nanotubes acted ...
Added: December 1, 2025
Sotnikova A., Ivantsov M. I., Kulikov A. et al., International Journal of Hydrogen Energy 2024 Vol. 57 P. 1208–1220
Catalytic decomposition of methane is a promising process that allows the simultaneous production of hydrogen and carbon nanomaterials with no COx emissions. In this work, for the first time, the possibility of promoting Ni-containing composite materials based on an organic matrix of polyvinyl alcohol (PVA) with MgO was demonstrated. The amount of MgO promoter varied ...
Added: June 25, 2024
Contact-driven deformation of metallic carbon nanotubes observed from an unconventional field effect
Gayduchenko I., Prudkoglyad V., Kuntsevich A., Physical Review B: Condensed Matter and Materials Physics 2024 Vol. 109 No. 16 Article L161401
Despite decades of intensive studies, some aspects of charge transport through carbon nanotubes (CNTs) remain poorly understood. Here, we explore the transport properties of field-effect devices based on metallic CNTs, where the density of states is supposed to be constant and a field effect is not anticipated. The observed current-voltage characteristics are qualitatively different from ...
Added: April 2, 2024
Margarita R. Chetyrkina, Fedorov F., Nasibulin A., RCS Advances 2022 Vol. 12 No. 25 P. 16235–16256
Carbon nanotube (CNT) toxicity-related issues provoke many debates in the scientific community. The controversial and disputable data about toxicity doses, proposed hazard effects, and human health concerns significantly restrict CNT applications in biomedical studies, laboratory practices, and industry, creating a barrier for mankind in the way of understanding how exactly the material behaves in contact ...
Added: September 18, 2023
Margarita R. Chetyrkina, Cvjetinovic J., Fedorov F. et al., ACS Photonics 2022 Vol. 9 No. 10 P. 3429–3439
Optoacoustic (photoacoustic) imaging has gained tremendous attention in research and in clinical practice as a point-of-care system for noninvasive, fast, and safe tests. The first optoacoustic (OA) tomograph has recently passed the Food and Drug Administration (FDA) approval stage for clinical applications aimed at early breast cancer diagnostics. Furthermore, a broad application of OA imaging ...
Added: September 11, 2023
Komrakova S., An P., Kovalyuk V. et al., Nanomaterials 2023 Vol. 13 No. 16 Article 2307
The integration of low-dimensional materials with optical waveguides presents promising opportunities for enhancing light manipulation in passive photonic circuits. In this study, we investigate the potential of aerosol-synthesized single-walled carbon nanotube (SWCNT) films for silicon nitride photonic circuits as a basis for developing integrated optics devices. Specifically, by measuring the optical response of SWCNT-covered waveguides, ...
Added: August 23, 2023
Polynskaya Y., Sinitsa A., Vyrko S. et al., Physica E: Low-Dimensional Systems and Nanostructures 2023 Vol. 148 P. 1–7
Possible mechanism of cap expansion of preliminarily prepared carbon nanotube is proposed and confirmed by DFT calculations. According to this mechanism single carbon atoms adsorbed on lateral surface of the nanotube (sp atoms) migrate along the nanotube and are trapped at its cap in the potential well. When pair of sp atoms meet at the ...
Added: August 23, 2023
Safronova E., Паршина А. В., Колганова Т. С. et al., Journal of Electroanalytical Chemistry 2020 Vol. 873 Article 114435
Hybrid materials based on perfluorinated sulfonic acid (PFSA) Nafion®-type membranes with homogeneous and with
a gradient distribution of multiwalled carbon nanotubes (CNTs) along the sample were obtained. The studies of water
uptake, ionic conductivity, and diffusion permeability of the materials were performed. Hybrid membranes were used
to create potentiometric Donnan potential (DP) sensors. The influence of the CNTs ...
Added: September 16, 2022
Titova N., I A Gayduchenko, Moskotin M. V. et al., Journal of Physics: Conference Series 2019 Vol. 1410 No. 1 Article 012208
In this paper, we study terahertz detectors based on single quasimetallic carbon nanotubes (CNT) with asymmetric contacts and different metal pairs. We demonstrate that, depending on the contact metallization of the device, various detection mechanisms are manifested. ...
Added: August 1, 2022
Krichevsky D. M., Shi L., Baturin V. S. et al., Nanoscale 2022 Vol. 14 No. 5 P. 1978–1989
Molecular magnetism and specifically magnetic molecules have recently gained plenty of attention as key elements for quantum technologies, information processing, and spintronics. Transition to the nanoscale and implementation of ordered structures with defined parameters is crucial for advanced applications. Single-walled carbon nanotubes (SWCNTs) provide natural one-dimensional confinement that can be implemented for encapsulation, nanosynthesis, and ...
Added: June 19, 2022
Y. Matyushkin, Danilov S., Moskotin M. et al., Optics Express 2021 Vol. 29 No. 23 P. 37189–37199
We report on helicity sensitive photovoltaic terahertz radiation response of a carbon nanotube made in a configuration of a field-effect transistor. We find that the magnitude of the rectified voltage is different for clockwise and anticlockwise circularly polarized radiation. We demonstrate that this effect is a fingerprint of the plasma waves interference in the transistor ...
Added: May 20, 2022
Single-particle states spectroscopy in individual carbon nanotubes with an aid of tunneling contacts
Matyushkin Y., Moskotin M., Rogov Y. et al., Applied Physics Letters 2022 Vol. 120 No. 8 Article 083104
Recent studies have demonstrated that the band structure of a carbon nanotube (CNT) depends not only on its geometry but also on various factors such as atmosphere chemical composition and dielectric environment. Systematic studies of these effects require an efficient tool for an in situ investigation of a CNT band structure. In this work, we fabricate tunneling ...
Added: February 28, 2022
Stenina Irina A, Shaydullin R., Desyatov A. et al., Electrochimica Acta 2020 Vol. 364 Article 137330
The composite nanomaterials based on hydrothermally synthesized Li4Ti5O12 and carbon
nanotubes (CNTs) or carbon nanoflakes, including N-doped ones were prepared. The composites
were investigated by X-ray powder diffraction, TEM, SEM, Raman spectroscopy, BET, dcmeasurements,
galvanostatic charge-discharge tests, cyclic voltammetry and electrochemical
impedance spectroscopy. Carbon nanomaterial addition provides the formation of a highly
conductive 3D network leading to a significant increase ...
Added: October 19, 2021
Mitin D., Yury Berdnikov, Vorobyev A. et al., ACS Applied Materials & Interfaces 2020 Vol. 12 No. 49 P. 55141–55147
We propose a novel strategy to enhance optoelectrical properties of single-walled carbon nanotube (SWCNT) films for transparent electrode applications by film patterning. First, we theoretically considered the effect of the conducting pattern geometry on the film quality factor and then experimentally examined the calculated structures. We extend these results to show that the best characteristics ...
Added: November 30, 2020
Gubanov M. A., Ivantsov M. I., Kulikova M. V. et al., Petroleum Chemistry 2020 Vol. 60 No. 9 P. 1043–1051
New methane degradation nickel catalysts based on original and modified layered double hydroxides and multilayer carbon nanotubes have been synthesized. The synthesized systems have been characterized by a set of physicochemical methods, namely, X-ray diffraction (XRD) analysis, scanning electron microscopy, Raman spectroscopy, and the thermal method. The catalytic activity of the synthesized catalysts in the ...
Added: November 6, 2020
Matyushkin Y., Kaurova N., Voronov B. et al., Fullerenes, Nanotubes and Carbon Nanostructures 2020 Vol. 28 No. 1 P. 50–53
We report an experimental study of the band structure of individual carbon nanotubes (SCNTs) based on investigation of the tunneling density of states, i.e. tunneling spectroscopy. A common approach to this task is to use a scanning tunneling microscope (STM). However, this approach has a number of drawbacks, to overcome which, we propose another method–tunneling ...
Added: October 29, 2020
Piatrusha S. U., Ginzburg L. V., Tikhonov E. et al., JETP Letters 2018 Vol. 108 No. 1 P. 71–83
Typical experimental measurement is set up as a study of the system's response to a stationary external excitation. This approach considers any random fluctuation of the signal as spurious contribution which is to be eliminated via time-averaging or, equivalently, bandwidth reduction. Beyond that lies a conceptually different paradigm -- the measurement of the system's spontaneous ...
Added: February 1, 2019
Bao L., Huang Z., Priezjev N. et al., Applied Surface Science 2018 Vol. 437 P. 202–208
It is well recognized that excessive ice accumulation at low-temperature conditions can cause significant damage to civil infrastructure. The passive anti-icing surfaces provide a promising solution to suppress ice nucleation and enhance ice removal. However, despite extensive efforts, it remains a challenge to design anti-icing surfaces with low ice adhesion. Using all-atom molecular dynamics (MD) ...
Added: January 27, 2018
Pyatkov F., Khasminskaya S., Kovalyuk V. et al., Beilstein Journal of Nanotechnology 2017 Vol. 8 No. 1 P. 38–44
Carbon nanotubes (CNTs) have recently been integrated into optical waveguides and operated as electrically-driven light emitters under constant electrical bias. Such devices are of interest for the conversion of fast electrical signals into optical ones within a nanophotonic circuit. Here, we demonstrate that waveguide-integrated single-walled CNTs are promising high-speed transducers for light-pulse generation in the ...
Added: February 22, 2017
Korsun O. M., Kalugin O. N., Vasenko A. S. et al., Journal of Physical Chemistry C 2016 Vol. 120 No. 46 P. 26514–26521
The influence of bare and solvated cations imbedded inside single-walled carbon nanotubes (SWCNTs) on the SWCNT electronic properties is studied by ab initio electronic structure calculations. The roles of ion charge and ion solvation are investigated by comparing Li+ vs Mg2+ and Li+ vs its solvatocomplex with two ethylene carbonate (EC) molecules, [Li(EC)2]+. Two achiral ...
Added: November 22, 2016
Gayduchenko I. A., Fedorov G. E., Stepanova T. S. et al., Journal of Physics: Conference Series 2016 Vol. 741 No. 1 P. 012143
Demand for efficient terahertz (THz) radiation detectors resulted in intensive study of the asymmetric carbon nanostructures as a possible solution for that problem. In this work, we systematically investigate the response of asymmetric carbon nanodevices to sub-terahertz radiation using different sensing elements: from dense carbon nanotube (CNT) network to individual CNT. We conclude that the ...
Added: October 20, 2016