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A model for the formation of carbon nanotubes (CNTs) and layered graphene in an arc discharge method is developed on the basis of observed erosion of graphite anode under various experimental conditions and analyses of the morphology of the…

材料科学 · 物理学 2019-07-23 Soumen Karmakar

Microstructural properties of thin-film absorber layers play a vital role in developing high-performance solar cells. Scanning probe microscopy is frequently used for measuring spatially inhomogeneous properties of thin-film solar cells.…

Phase noise is very important for the ultrafast pulse application in telecommunication, ultrafast diagnose, material science, and biology. In this paper, two types of carbon nano-materials, single-wall carbon nanotube and graphene oxide,…

Wakefield wavelengths associated with solid-state plasmas greatly limit the accelerating length. An alternative approach employs 2D carbon-based nanomaterials, like graphene or carbon nanotubes (CNTs), configured into structured targets.…

The synthesis of single-wall carbon nanotubes (SWCNTs) of desired diameters and chiralities is critical to the design of nanoscale electronic devices with desired properties.1-6 The existing methods are based on self-assembly, 7-16…

材料科学 · 物理学 2009-11-13 Anton Sidorov , David Mudd , Gamini Sumanasekera , P. J. Ouseph , C. S. Jayanthi , Shi-Yu Wu*

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

Carbon fiber and graphene-based nanostructures such as carbon nanotubes (CNTs) and defective structures have extraordinary potential as strong and lightweight materials. A longstanding bottleneck has been lack of understanding and…

材料科学 · 物理学 2021-10-26 Qi Zhao , Jordan J. Winetrout , Yanxun Xu , Yusu Wang , Hendrik Heinz

We consider the effect of various defects and boundary structures on the low energy electronic properties in conducting zigzag and armchair carbon nanotubes. The tight binding model of the conduction bands is mapped exactly onto simple…

介观与纳米尺度物理 · 物理学 2010-10-20 Sebastian A. Reyes , Alexander Struck , Sebastian Eggert

Single walled carbon nanotube's cross section can be flattened under hydrostatic pressure. One example is the cross section of a single walled carbon nanotube successively deforms from the original round shape to oval shape, then to…

介观与纳米尺度物理 · 物理学 2015-06-18 Weihua Mu , Jianshu Cao , Zhong-can Ou-Yang

We present a feasibility study for loading cold atomic clouds into magnetic traps created by single-wall carbon nanotubes grown directly onto dielectric surfaces. We show that atoms may be captured for experimentally sustainable nanotube…

其他凝聚态物理 · 物理学 2009-11-13 P. G. Petrov , S. Machluf , S. Younis , R. Macaluso , T. David , B. Hadad , Y. Japha , M. Keil , E. Joselevich , R. Folman

Low-dimensional plasmonic materials can function as high quality terahertz and infrared antennas at deep subwavelength scales. Despite these antennas' strong coupling to electromagnetic fields, there is a pressing need to further strengthen…

A wide range of approaches have been explored to meet the challenges of graphene nanostructure fabrication, all requiring complex and high-end nanofabrication platform and suffering from surface contaminations, potentially giving electrical…

材料科学 · 物理学 2020-12-14 Xiaoyan Zhang , Pauline M. G. van Deursen , Wangyang Fu , Gregory F. Schneider

Allotropes of carbon, including one-dimensional carbon nanotubes and two-dimensional graphene sheets, continue to draw attention as promising platforms for probing the physics of electrons in lower dimensions. Recent research has shown that…

介观与纳米尺度物理 · 物理学 2020-05-20 Benedetta Flebus , Allan H. MacDonald

Prevalence of electronic gadgets has been on the rise and among several considerations that are important for furthering frontiers of utility of new gadgets is mechanical flexibility of electronic systems. Flexible electronics require…

材料科学 · 物理学 2016-05-10 Terry Lukov , Robinson Smith , Ashley R. Chester

Novel applications in nanotechnology rely on the design of tailored nano-architectures. For this purpose, carbon nanotubes and nanoparticles are intensively investigated. In this work we study the influence of non-functionalized carbon…

材料科学 · 物理学 2015-07-20 Beatriz H. Juarez , Christian Klinke , Andreas Kornowski , Horst Weller

Single-walled carbon nanotubes (SWNTs) have many interesting properties; they may be metallic or semiconducting depending on their diameter and helicity of the graphene sheet. Hydrostatic or quasi-hydrostatic high pressures can probe many…

材料科学 · 物理学 2009-11-10 R. Falconi , J. A. Azamar , R. Escudero

We show that a multi-walled carbon nanotube film can be used as the sensing element of a low-cost sensor for the alcoholic concentration in liquid solutions. To this purpose, we investigate the electrical resistance of the film as a…

介观与纳米尺度物理 · 物理学 2020-08-25 C. Giordano , G. Filatrella , Maria Sarno , A. Di Bartolomeo

Transparent and conductive films (TCFs) are of great technological importance. The high transmittance, electrical conductivity and mechanical strength make single-walled carbon nanotubes (SWCNTs) a good candidate for their raw material.…

We propose an experimentally viable setup for the realization of one-dimensional ultracold atom gases in a nanoscale magnetic waveguide formed by single doubly-clamped suspended carbon nanotubes. We show that all common decoherence and atom…

量子物理 · 物理学 2007-05-23 V. Peano , M. Thorwart , A. Kasper , R. Egger

Scanning Surface Potential Microscopy (SSPM) is one of the most widely used techniques for the characterization of electrical properties at small dimensions. Applicability of SSPM and related electrostatic scanning probe microscopies for…

介观与纳米尺度物理 · 物理学 2009-11-07 Sergei V. Kalinin , Marcus Freitag , A. T. Johnson , Dawn A. Bonnell