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Fibres of ultralong and aligned carbon nanotubes (CNT) have axial properties above reference engineering materials, proving to be exceptional materials for application in structural composites, energy storage and other devices. For CNT…

材料科学 · 物理学 2021-05-07 Anastasiia Mikhalchan , María Vila , Luis Arévalo , Juan J. Vilatela

Recently, TersoffCG, a coarse grain potential for graphene based on Tersoff potential, has been developed. In this work, we explore this potential, applying it to the case study of a single wall carbon nanotube. We performed a series of…

介观与纳米尺度物理 · 物理学 2018-07-05 Andrea Pedrielli

Electronic transport properties of carbon nanotubes are studied theoretically in the presence of external electric field E(t) by using the Boltzmann's transport with constant relaxation time. An analytical expression for the current…

介观与纳米尺度物理 · 物理学 2015-02-18 S. S. Abukari , S. Y. Mensah , N. G. Mensah , M. Rabiu , K. W. Adu , A. Twum

ultiwalled carbon nanotubes, prepared by both electric arc discharge and chemical vapor deposition methods, show a strong visible light emission in photoluminescence experiments. All the samples employed in the experiments exhibit nearly…

材料科学 · 物理学 2007-05-23 H. X. Han , G. H. Li , W. K. Ge , Z. P. Wang , Z. Y. Xu , S. S. Xie , B. H. Chang , L. F. Sun , B. S. Wang , G. Xu , Z. B. Su

How carbon nanotubes behave in an external electric field? What will be the relation between the intensity of the electric field and the tube's deformation? What are the geometry effects on the response of carbon nanotubes to electric…

介观与纳米尺度物理 · 物理学 2018-10-26 Z. Wang , M. Devel , R. Langlet , B. Dulmet

We use the tight-binding model to study the effect of transverse electric field on the low-temperature electronic specific heat (Cv) for armchair and zigzag boron nitride nanotubes (ABNNTs and ZBNNTs). For wide-band-gap BNNTs, electric…

介观与纳米尺度物理 · 物理学 2015-11-30 Feng-Lin Shyu

In this paper the effect of pressure on the contact angle of a water drop on superhydrophobic Carbon Nanotube (CNT) forests is studied. Superhydrophobic CNT forests are obtained from a new and simple functionalization strategy, based on the…

软凝聚态物质 · 物理学 2009-11-11 Catherine Journet , Sebastien Moulinet , Christophe Ybert , Stephen T. Purcell , Lyderic Bocquet

Present work focuses on the effective doping of multi-walled carbon nanotube (CNT) in the ZnS:Cu phosphor system and thereafter improvement in the optical performance of electroluminescent (EL) device due to the effect of increased local…

材料科学 · 物理学 2013-08-20 Deepika Yadav , Dileep Dwivedi , Savvi Mishra , B. Sivaiah , A. Dhar , V. Shanker , D. Haranath

This work presents a model that successfully describes the tensile properties of macroscopic fibres of carbon nanotubes (CNTs). The core idea is to treat such a fibre as a network of CNT bundles, similar to the structure of high-performance…

材料科学 · 物理学 2019-03-01 J. C. Fernández-Toribio , B. Alemán , A. Ridruejo , J. J. Vilatela

Carbon nanotube field-effect transistors (CNT FETs) are regarded as promising candidates for next-generation energy-efficient computing systems. While research has employed the lift-off process to demonstrate the performance of CNT FETs,…

应用物理 · 物理学 2024-11-18 Xilong Gao , Jia Si , Zhiyong Zhang

Dielectric properties of carbon nanotubes (CNT) are calculated with taking into account the deviation of carbon valence electrons from to be placed exactly on the CNT surface. The results show difference to the usually applied 2D electron…

介观与纳米尺度物理 · 物理学 2012-04-04 V. A. Aleksandrov , A. V. Stepanov , G. M. Filippov

Phenomenological analysis of the covariant theta-exact noncommutative (NC) gauge field theory (GFT), inspired by high energy cosmic rays experiments, is performed in the framework of the inelastic neutrino-nucleon scatterings, plasmon and…

高能物理 - 唯象学 · 物理学 2012-10-22 Josip Trampetic

The electrical conductivity of metallic carbon nanotubes (CNTs) quickly saturates with respect to bias voltage due to scattering from a large population of optical phonons. Decay of these dominant scatterers in pristine CNTs is too slow to…

材料科学 · 物理学 2017-04-05 Andrij Vasylenko , Jamie Wynn , Paulo Medeiros , Andrew J. Morris , Jeremy Sloan , David Quigley

Controlled growth, patterning and placement of carbon nanotube (CNT) thin films for electronic applications are demonstrated. The density of CNT films is controlled by optimizing the feed gas composition as well as the concentration of…

材料科学 · 物理学 2015-05-18 V. K. Sangwan , V. W. Ballarotto , D. R. Hines , M. S. Fuhrer , E. D. Williams

The search for earth abundant, efficient and stable electrocatalysts that can enable the chemical reduction of CO2 to value-added chemicals and fuels at an industrially relevant scale, is a high priority for the development of a global…

The ultra-low intershell shear strength in carbon nanotubes (CNTs) has been the primary obstacle to applications of CNTs as mechanical reinforcements. In this paper we propose a new CNT-system composed of comprising of coaxial cylindrical…

材料科学 · 物理学 2009-03-12 Zhiping Xu , Lifeng Wang , Quanshui Zheng

Substantial progress on field effect transistors "FETs" consisting of semiconducting single wall carbon nanotubes "s-SWNTs" without detectable traces of metallic nanotubes and impurities is reported. Nearly perfect removal of metallic…

Physisorption studies and transmission electron microscopy have been used to characterise multi-walled carbon nanotubes (MWNTs) made by a template-synthesis technique. Microscopic investigations revealed formation of 'branched nanotubes'…

化学物理 · 物理学 2023-05-10 M. -R. Babaa , E. Mcrae , Sandrine Delpeux , J. Ghanbaja , F. Valsaque , F. Béguin

The present work encompasses an investigation of the adsorption properties of small dimer species onto a zigzag single walled carbon nanotube (ZNT for short). To perform this analysis we have considered the zigzag (8, 0) system with a…

化学物理 · 物理学 2008-05-30 Aned de Leon

We describe the electro-thermal transport in metallic carbon nanotubes (m-CNTs) by a semi-classical approach that takes into account the high-field dynamical interdependence between charge carrier and phonon populations. Our model is based…

介观与纳米尺度物理 · 物理学 2015-05-13 Marcelo A. Kuroda , Jean Pierre Leburton