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The growth of single wall carbon nanotubes (SWCNT) inside host SWCNTs remains a compelling alternative to the conventional catalyst induced growth processes. It not only provides a catalyst free process but the ability to control the…

介观与纳米尺度物理 · 物理学 2021-01-28 J. Koltai , H. Kuzmany , T. Pichler , F. Simon

Based on the van der Waals interaction, the periodically nonlinear potential of a singe-walled carbon nanotube (SWNT) with finite length in an infinite length SWNT is analytically obtained. It is found that the inner SWNT can oscillate in…

介观与纳米尺度物理 · 物理学 2007-05-23 Z. C. Tu , Z. C. Ou-Yang

Linear carbon chains (LCCs) have been shown to grow inside double-walled carbon nanotubes (DWCNTs) but isolating them from this hosting material represents one of the most challenging tasks towards applications. Herein we report the…

材料科学 · 物理学 2019-01-25 Lei Shi , Kazuhiro Yanagi , Kecheng Cao , Ute Kaiser , Paola Ayala , Thomas Pichler

Ever since the landmark discovery of single-walled carbon nanotubes (SWNTs) in 1993, they have been considered as ideal materials for any kind of application based on their outstanding properties (e.g. mechanical strength, thermal…

材料科学 · 物理学 2007-08-13 S. Inoue , T. Nakajima , K. Nomura , Y. Kikuchi

The pressure response of double-wall carbon nanotubes has been investigated by means of Raman spectroscopy up to 10 GPa. The intensity of the radial breathing modes of the outer tubes decreases rapidly but remain observable up to 9 GPa,…

Single-walled carbon nanotubes (SWCNTs) are promising for nanoscale electronics and photonics, but practical deployment requires chirality control. Most catalytic chemical vapor deposition (CCVD) growth of SWCNTs proceeds on liquid metal…

材料科学 · 物理学 2026-02-20 Daniel Hedman

Carbyne, a one-dimensional (1D) carbon allotrope with alternating triple and single bonds, has the highest known mechanical strength but is unstable to bending, limiting synthesis to short linear chains. Encapsulation within carbon…

Carbon nanotubes (CNTs) are quasi-1D nanostructures that display both high thermal conductivity and intriguing low-dimensional phonon transport phenomena. In comparison to the advances made in the theoretical calculation of the lattice…

应用物理 · 物理学 2023-08-29 Qianru Jia , Yuanyuan Zhou , Xun Li , Lucas Lindsay , Li Shi

Combining a classical force field, a tight-binding model, and first-principles calculations, we have studied structural, electronic, and optical properties of double-walled carbon nanotube (DWNT) bundles under hydrostatic pressure. We find…

材料科学 · 物理学 2009-11-13 Xiaoping Yang , Gang Wu

Mixtures containing different weight ratios of single wall carbon nanotubes (SWCNT) and double wall carbon nanotubes (DWCNT) were prepared and studied by in-situ Raman spectroelectrochemistry. Two components of the G-prime mode in the Raman…

材料科学 · 物理学 2021-07-23 Zuzana Kominkovaa , Vaclav Vales , Mark C. Hersam , Martin Kalbac

Growth of carbon nanotubes (CNTs) was performed by atmospheric pressure chemical vapour deposition (APCVD) of propane on Si(111) with a pre-treated Ni overlayer acting as a catalyst. Prior to the growth of CNTs, a thin film of Ni was…

材料科学 · 物理学 2019-06-04 J Sengupta , SK Panda , C Jacob

The effect of Fe and Ni catalysts on the synthesis of carbon nanotubes (CNTs) using atmospheric pressure chemical vapor deposition (APCVD) was investigated. Field emission scanning electron microscopy (FESEM) analysis suggests that the…

材料科学 · 物理学 2019-08-02 J. Sengupta , C. Jacob

Black phosphorus is not stable when it is exposed to air. When covered or terminated by single layer carbon atoms, such as graphene carbon nanotube, it is more strongly protected in the rapid degradation than the bare black phosphorus.…

材料科学 · 物理学 2017-05-24 Kun Cai , Jing Wan , Likui Yang , Ning Wei

N-doped single/multi-walled carbon nanotubes (CNTs) were studied for long time from synthesis to properties. However, the stability of N in the CNT lattice still needs further developments. In this work, to obtain more stable N-doped CNTs,…

原子与分子团簇 · 物理学 2023-07-19 Lei Shi , Markus Sauer , Oleg Domanov , Philip Rohringer , Paola Ayala , Thomas Pichler

In this work, we report a theoretical coupled study of the structural and phonons properties of bundled single- and double-walled carbon nanotubes (DWNTs), under hydrostatic compression. Our results confirm drastic changes in volume of…

介观与纳米尺度物理 · 物理学 2012-06-21 Acrisio. L. Aguiar , Rodrigo B. Capaz , A. G. Souza Filho , Alfonso San-Miguel

Carbon nanotubes play a fundamental role in the rapidly developing field of nanoscience and nanotechnology because of their unique properties and high potential applictions. In this article, the different synthesis method of CNTs are…

材料科学 · 物理学 2007-05-23 Kalpana Awasthi , Anchal Srivastava , O. N. Srivastava

A fabrication method for positioning and embedding a single-walled carbon nanotube (SWNT) across the diameter of a solid state nanopore is presented. Chemical vapor deposition (CVD) is used to grow SWNTs over arrays of focused ion beam…

生物物理 · 物理学 2013-08-07 E. S. Sadki , S. Garaj , D. Vlassarev , J. A. Golovchenko , D. Branton

Three kinds of the response mechanisms to the external pressure have been found for double-walled carbon nanotube (DWNT) bundle, depending strongly on their average radius and symmetry. The small-diameter DWNT bundle undergoes a small…

材料科学 · 物理学 2015-05-13 Xiaoping Yang , Gang Wu , Jinming Dong

The interactions of charged particles moving paraxially in multi-walled carbon nanotubes (MWCNTs) may excite electromagnetic modes. This wake effect has recently been proposed as a potential novel method of short-wavelength high-gradient…

加速器物理 · 物理学 2024-04-26 Pablo Martín-Luna , Alexandre Bonatto , Cristian Bontoiu , Guoxing Xia , Javier Resta-López

We report on the synthesis of carbon nanotubes on quasicrystalline alloys. Aligned multiwalled carbon nanotubes (MWNTs) on the conducting faces of decagonal quasicrystals were synthesized using floating catalyst chemical vapor deposition.…