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Carbon nanotubes (CNTs - long tubular carbon nanostructures) belong to the best electron field emitting materials. Based on the experimentally determined electron density in the dual hot filament/DC plasma deposition system the electric…

Plasma Physics · Physics 2007-05-23 J. Blazek , P. Spatenka , Ch. Taeschner , A. Leonhardt

The dependence of the interwall conductance on distance between walls and relative positions of walls are calculated at the low voltage by Bardeen method for (n,n)@(2n,2n) double-walled carbon nanotubes (DWCNTs) with n = 5, 6, ..., 10. The…

Mesoscale and Nanoscale Physics · Physics 2010-04-26 N. A. Poklonski , Nguyen Ngoc Hieu , E. F. Kislyakov , S. A. Vyrko , A. I. Siahlo , A. M. Popov , Yu. E. Lozovik

The objective of the present paper is to investigate the mechanical properties of carbon nanotubes. We use classical molecular dynamics simulation in order to study the effect of external compression, bending and torsion to nanotubes. We…

Mesoscale and Nanoscale Physics · Physics 2014-11-27 N. Stefanakis

Materials comprising carbon nanotube (CNT) aligned nanowire (NW) polymer nanocomposites (A-PNCs) are emerging as next-generation materials for use in aerospace structures. Enhanced operating regimes, such as operating temperatures, motivate…

Applied Physics · Physics 2017-12-19 Itai Y. Stein , Hanna M. Vincent , Stephen A. Steiner , Elena Colombini , Brian L. Wardle

The wafer scale integration of carbon nanotubes (CNT) remains a challenge for electronic and electromechanical applications. We propose a novel CNT integration process relying on the combination of controlled capillary assembly and buried…

A nanoscopic simulation for an acceleration sensor is aimed based on the piezoresistive effect of carbon nanotubes (CNTs). Therefore, a compact model is built from density functional theory (DFT), compared with results of molecular dynamics…

Mesoscale and Nanoscale Physics · Physics 2017-07-04 C. Wagner , S. Hartmann , B. Wunderle , J. Schuster , S. E. Schulz , T. Gessner

Band structure is theoretically studied in partially flattened carbon nanotubes within an effective-mass scheme. Effects of inter-wall interactions are shown to be important in non-chiral nanotubes such as zigzag and armchair and can…

Mesoscale and Nanoscale Physics · Physics 2016-10-12 Takeshi Nakanishi , Tsuneya Ando

Context. As the 4th most abundant element in the universe, carbon (C) is widespread in the interstellar medium (ISM) in various allotropic forms (e.g., fullerenes have been identified unambiguously in many astronomical environments, the…

Instrumentation and Methods for Astrophysics · Physics 2019-10-23 Tao Chen , Aigen Li

Macroscopic ensembles of nanocarbons, such as fibres of carbon nanotubes (CNT), are characterised by a complex hierarchical structure combining coherent crystalline regions with a large porosity arising from imperfect packing of the large…

Interwall interaction energies, as well as barriers to relative sliding of the walls along the nanotube axis, are first calculated for pairs of both armchair or both zigzag adjacent walls of carbon nanotubes with a wide range of radiuses.…

Mesoscale and Nanoscale Physics · Physics 2011-11-11 Andrey M. Popov , Yurii E. Lozovik , Evgenii K. Krivorotov

The structure and motion of carbon and h-BN nanotubes (NTs) deposited on graphene is inquired theoretically by simulations based on state-of-the-art interatomic force fields. Results show that any typical cylinder-over-surface approximation…

Mesoscale and Nanoscale Physics · Physics 2020-06-17 Davide Mandelli , Roberto Guerra

The photocurrent properties of freely suspended single-walled carbon nanotubes (CNTs) are investigated as a function of uniaxial strain. We observe that at low strain, the photocurrent signal of the CNTs increases for increasing strain,…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 S. M. Kaniber , L. Song , J. P. Kotthaus , A. W. Holleitner

Controlling the assembly of polyelectrolytes and surfactant at liquid-liquid interfaces offers new ways to fabricate soft materials with specific physical properties. However, little is known of the relationships between the kinetics of…

Soft Condensed Matter · Physics 2022-03-11 Revaz Chachanidze , Kaili Xie , Hanna Massaad , Denis Roux , Marc Leonetti , Clément de Loubens

In this work we study the reinforcement of polymers by mechanically interlocked derivatives of single-walled carbon nanotubes (SWNTs). We compare the mechanical properties of fibers made of polymers and of composites with pristine…

The high aspect ratio of carbon nanotubes makes them prone to bending. To know how bending affects the tubes is therefore crucial for tube identification and for electrical component design. Very few studies, however, have investigated…

Mesoscale and Nanoscale Physics · Physics 2010-11-24 Pekka Koskinen

In recent years, the immiscible polymer blend system has attracted much attention as the matrix of nanocomposites. Herein, from the perspective of dynamics, the control of the carbon nanotubes (CNTs) migration aided with the interface of…

Applied Physics · Physics 2021-05-07 Liping Zhou , Yu Tian , Peng Xu , Huijie Wei , Yuhan Li , Hua-Xin Peng , Faxiang Qin

Protective applications in extreme environments demand thermally stable materials with superior modulus, strength, and specific energy absorption (SEA) at lightweight. However, these properties typically have a trade-off. Hierarchically…

Materials Science · Physics 2022-07-08 Komal Chawla , Abhishek Gupta , Abhijeet S. Bhardwaj , Ramathasan Thevamaran

This paper is the first one of a series of two articles in which we revisit the optical properties of single-walled carbon nanotubes (SWNT). Produced by rolling up a graphene sheet, SWNT owe their intriguing properties to their cylindrical…

Mathematical Physics · Physics 2018-11-30 Morten Rasmussen , Benjamin Ricaud , Baptiste Savoie

Usually, in optical spectra of double-walled carbon nanotubes (DWCNTs) weak van der Waals coupling between the layers leads only to a small shift of transition energies with respect to their values in pristine single-walled nanotubes.…

Mesoscale and Nanoscale Physics · Physics 2020-09-30 D. V. Chalin , S. B. Rochal

In this thesis, I explored the use of several machine learning techniques, including neural networks, simulation-based inference, and generative flow networks, on predicting CNTFETs performance, probing the conductivity properties of CNT…

Applied Physics · Physics 2025-01-28 Shulin Tan