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The ground-state exciton binding energy for single-walled carbon nanotubes (SWCNTs) in vacuum calculated ignoring the screening of Coulomb interaction appears to be much greater than the corresponding band gap. The most essential…

其他凝聚态物理 · 物理学 2010-11-18 Vadym M. Adamyan , Oleksii A. Smyrnov , Sergey V. Tishchenko

1D van der Waals heterostructures (1D vdWH) were recently reported to be successfully synthesized. We perform molecular dynamics simulations to investigate the buckling behavior of a 1D vdWH composed of inner carbon nanotube, a middle boron…

原子物理 · 物理学 2022-06-16 Jing Wan , Shu Lin

Heat conduction of a real quasi-one dimensional material, the finite length carbon nanowire (CNW), inserted into the single-walled carbon nanotube (SWNT) has been studied by the molecular dynamical (MD) method, in which both of the…

介观与纳米尺度物理 · 物理学 2007-07-31 Gang Wu , Jinming Dong

Single-wall carbon nanotube (SWNT) nanofibrils were assembled onto conductive atomic force microscopy (AFM) probes with the help of dielectrophoresis (DEP). This process involved the application of a 10 V, 2 MHz, AC bias between a…

Our group recently reproduced the water-assisted growth method, so-called "super growth", of millimeter-thick single-walled carbon nanotube (SWNT) forests by using C2H4/ H2/ H2O/ Ar reactant gas and Fe/ Al2O3 catalyst. In this current work,…

The continuous two-dimensional (2D) elastic model for single-walled carbon nanotubes (SWNTs) provided by Tu and Ou-Yang in [Phys. Rev. B \textbf{65}, 235411 (2003)] is reduced to a one-dimensional (1D) curvature elastic model strictly. This…

介观与纳米尺度物理 · 物理学 2015-03-18 Xiaohua Zhou

We demonstrate a novel cross-sectional deformation, called the radial corrugation, of multi-walled carbon nanotubes (MWNTs) under hydrostatic pressure. Theoretical analyses based on the continuum elastic approximation have revealed that…

介观与纳米尺度物理 · 物理学 2015-05-13 Hiroyuki Shima , Motohiro Sato

An oxygen assisted hydrocarbon chemical vapor deposition (CVD) method is developed to afford large-scale highly reproducible ultra high-yield growth of vertical single-walled carbon nanotubes (SWNT). It is revealed that reactive hydrogen…

Elastic radial deformation of multiwall carbon nanotubes (MWNTs) under hydrostatic pressure is investigated within the continuum elastic approximation. The thin-shell theory, with accurate elastic constants and interwall couplings, allows…

介观与纳米尺度物理 · 物理学 2015-03-17 Hiroyuki Shima , Susanta Ghosh , Marino Arroyo , Kohtaroh Iiboshi , Motohiro Sato

Transistors made up of carbon nanotubes CNT have demonstrated excellent current-voltage characteristics which outperform some high-grade silicon-based transistors. A continuously tunable energy barrier across semiconductor interfaces is…

The electrical characteristics of a carbon nanotube can be significantly modified by applying elastic strain. This study focuses on exploring this phenomenon in a single-walled carbon nanotube (SWNT) using tight-binding transport…

介观与纳米尺度物理 · 物理学 2024-09-10 Naif Hadadi , Adel Belayadi , Ousmane Ly , Adel Abbout

Freely suspended metallic single-wall carbon nanotubes (SWNTs) exhibit reduced current carrying ability compared to those lying on substrates, and striking negative differential conductance (NDC) at low electric fields. Theoretical analysis…

介观与纳米尺度物理 · 物理学 2009-11-11 Eric Pop , David Mann , Jien Cao , Qian Wang , Kenneth Goodson , Hongjie Dai

We develop a continuous theory of low-frequency dynamics for single-walled carbon nanotubes (SWCNTs) weakly interacting with the environment. In the frame of the approach proposed we obtain temperature dependence of SWCNTs specific heat in…

介观与纳米尺度物理 · 物理学 2015-05-20 M. V. Avramenko , I. Yu. Golushko , A. E. Myasnikova , S. B. Rochal

Single walled carbon nanotubes (SWNTs) have attracted immense research interest because of their remarkable physical and electronic properties. In particular, electronic devices fabricated using individual SWNT have shown outstanding device…

介观与纳米尺度物理 · 物理学 2014-05-06 Muhammad R. Islam , Saiful I. Khondaker

Self-assembled hierarchical solid surfaces are very interesting for wetting phenomena, as observed in a variety of natural and artificial surfaces. Here, we report single-walled (SWCNT) and multi-walled carbon nanotube (MWCNT) thin films…

We find that negative charges on an armchair single-walled carbon nanotube (SWCNT) can significantly enhance the migration of a carbon adatom on the external surfaces of SWCNTs, along the direction of the tube axis. Nanotube charging…

原子与分子团簇 · 物理学 2017-03-14 Longtao Han , Predrag Krstic , Igor Kaganovich , Roberto Car

Topological Stone-Wales defect in carbon nanotubes plays a central role in plastic deformation, chemical functionalization, and superstructure formation. Here, we systematically investigate the formation kinetics of such defects within…

介观与纳米尺度物理 · 物理学 2016-07-05 Mukul Kabir , Krystyn J. Van Vliet

Results of the bond lengths for various chiralities of single-wall carbon carbon nanotubes (SWNTs) (armchair, zigzag and chiral) are obtained. We use modified helical and rotational symmetries to describe the structure of SWNTs and Tersoff…

材料科学 · 物理学 2007-05-23 Ali Nasir Imtani , V. K. Jindal

We develop a general approach to calculations of the electron spectrum of metallic multi-wall carbon nanotubes (MWNT) with arbitrary number of coaxial layers. It is based on the model with singular attractive potential of equidistant…

介观与纳米尺度物理 · 物理学 2019-08-17 A. A. Abrikosov, , D. V. Livanov , A. A. Varlamov

Temperature dependence of electrical resistance of single-walled carbon nanotube (SWCNTs)/epoxy nanocomposites, which is characterized by a temperature coefficient of resistance (TCR), is experimentally investigated. In the existing…

应用物理 · 物理学 2025-03-19 Milad Jafarypouria , Sergey Abaimov