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相关论文: Novel carbon materials: new tunneling systems

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For similar disorder, the backscattering contribution to the conductivity, irrelevant for metallic single-walled carbon nanotubes, is proved to become more significant for doped semiconducting systems, as found in experiments. In the case…

无序系统与神经网络 · 物理学 2009-11-07 Stephan Roche , Francois Triozon , Angel Rubio

Can C60 layer cover a surface of single-wall carbon nanotube (SWCNT) forming an exohedral pure-carbon hybrid with only VdW interactions? The paper addresses this question and demonstrates that the fullerene shell layer in such a bucky-corn…

介观与纳米尺度物理 · 物理学 2016-09-01 Leonid A. Chernozatonskii , Anastasiya A. Artyukh , Victor A. Demin , Eugene A. Katz

The electronic structure of a graphene sheet is altered when it is rolled up to form a single-walled carbon nanotube (SWCNT), and the curvature effects for small radius nanotubes become significant. In the paper, an analogue of the Bloch…

数学物理 · 物理学 2025-12-08 Yuri A. Antipov

The electronic and structural properties of zigzag and armchair single-wall carbon nanotubes (SWCNT) with a single vacancy or two vacancies located at various distances have been obtained within the frame of the Density Function Theory…

原子与分子团簇 · 物理学 2008-07-15 A. Proykova , H. Iliev , Feng Yin Li

Recently unusual properties of water in single-walled carbon nanotubes (CNT) with diameters ranging from 1.05 nm to 1.52 nm were observed. It was found that water in the CNT remains in an ice-like phase even when the temperature ranges…

介观与纳米尺度物理 · 物理学 2017-03-23 Siddhartha Sen , Kumar S. Gupta

Heat conduction of single-walled carbon nanotubes (SWNTs) isotope-superlattice is investigated by means of classical molecular dynamics simulations. Superlattice structures were formed by alternately connecting SWNTs with different masses.…

材料科学 · 物理学 2009-11-11 Junichiro Shiomi , Shigeo Maruyama

Carbon nanotubes (CNTs) have recently attracted attention as materials for flexible thermoelectric devices. To provide theoretical guideline of how defects influence the thermoelectric performance of CNTs, we theoretically studied the…

介观与纳米尺度物理 · 物理学 2017-04-12 Masato Ohnishi , Takuma Shiga , Junichiro Shiomi

Suspended single-walled carbon nanotube devices comprised of high quality electrical contacts and two electrostatic gates per device are obtained. Compared to nanotubes pinned on substrates, the suspended devices exhibit little hysteresis…

介观与纳米尺度物理 · 物理学 2007-05-23 Jien Cao , Qian Wang , Dunwei Wang , Hongjie Dai

In this study, the synthesis of multi-walled carbon nanotubes (MWCNTs) was carried out by chemical vapor deposition (CVD) using propane as the carbon source and Si as the catalyst support. The effect of CVD process variables such as…

应用物理 · 物理学 2018-08-21 Joydip Sengupta

Based on the non-equilibrium molecular dynamics simulations, we have studied the thermal conductivities of a novel ultra-thin one-dimensional carbon nanomaterial - diamond nanothread (DNT). Unlike single-wall carbon nanotube (CNT), the…

材料科学 · 物理学 2015-11-06 Haifei Zhan , Gang Zhang , Yingyan Zhang , V. B. C. Tan , John M. Bell , Yuantong Gu

We analyze transport in metallic single-wall carbon nanotubes (SWNTs) on insulating substrates over the bias range up to electrical breakdown in air. To account for Joule self-heating, a temperature-dependent Landauer model for electrical…

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

The apex region of a capped (5,5) carbon nanotube (CNT) has been modelled with the DFT package ONETEP, using boundary conditions provided by a classical calculation with a conducting surface in place of the CNT. Results from the DFT…

Carbon nanotubes are nano-objects with quite anisotropic properties, for example the mechanical properties in longitudinal and radial directions differ significantly. This feature of the carbon nanotubes yields many interesting phenomena…

介观与纳米尺度物理 · 物理学 2023-10-26 Alexander V. Savin , Margarita Kovaleva

The influence of water-filling on the photoluminescence (PL) properties of SWCNTs is studied by ensemble and single-molecule PL spectroscopy. Red-shifted PL and PL excitation spectra are observed upon water filling for 16 chiralities and…

介观与纳米尺度物理 · 物理学 2012-09-27 Sofie Cambré , Silvia Santos , Wim Wenseleers , Ahmad Nugraha , Riichiro Saito , Laurent Cognet , Brahim Lounis

Semiconducting single-wall carbon nanotubes (SWCNTs) are a promising material platform for near-infrared in-vivo imaging, optical sensing, and single-photon emission at telecommunication wavelengths. The functionalization of SWCNTs with…

材料科学 · 物理学 2024-11-20 Finn L. Sebastian , Simon Settele , Han Li , Benjamin S. Flavel , Jana Zaumseil

The material and electrical properties of the CNT single vias and array vias grown by microwave plasma-enhanced chemical vapor deposition were investigated. The diameters of multiwall carbon nanotubes (MWNTs) grown on the bottom electrode…

材料科学 · 物理学 2007-08-10 J. -H. Ting , C. -C. Chiu , F. -Y. Huang

We have measured the dynamic alignment properties of single-walled carbon nanotube (SWNT) suspensions in pulsed high magnetic fields through linear dichroism spectroscopy. Millisecond-duration pulsed high magnetic fields up to 56 T as well…

介观与纳米尺度物理 · 物理学 2009-09-29 J. Shaver , A. N. G. Parra-Vasquez , S. Hansel , O. Portugall , C. H. Mielke , M. von Ortenberg , R. H. Hauge , M. Pasquali , J. Kono

We investigate the mechanical and adsorption properties of single-walled carbon nanotubes (SWCNTs) filled with greenhouse gases through Grand Canonical Monte Carlo (GCMC) and Molecular Dynamics (MD) simulations using a recently developed…

Carbon nanotubes are a good realization of one-dimensional crystals where basic science and potential nanodevice applications merge. Defects are known to modify the electrical resistance of carbon nanotubes. They can be present in as-grown…

We perform first-principles calculations to investigate the structural and electronic properties of metal-doped (10, 0) carbon nanotubes (CNTs) on a single hexagonal boron nitride (hBN) sheet in the presence of an external electric field.…

介观与纳米尺度物理 · 物理学 2015-07-22 Seoung-Hun Kang , Gunn Kim , Young-Kyun Kwon