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An elongation method based on ab initio quantum chemistry approaches is presented. It allows to study electronic structures and coherent electron transportation properties of single-walled carbon nanotubes (SWCNTs) up to 22nm in length…

Materials Science · Physics 2007-05-23 Jun Jiang , Wei Lu , Yi Luo

This paper is the first one of a series of two articles in which we revisit the optical properties of single-walled carbon nanotubes (SWNT). Produced by rolling up a graphene sheet, SWNT owe their intriguing properties to their cylindrical…

Mathematical Physics · Physics 2018-11-30 Morten Rasmussen , Benjamin Ricaud , Baptiste Savoie

Single-wall carbon nanotubes (SWNTs) were used to augment the thermal transport properties of industrial epoxy. Samples loaded with 1 wt% unpurified SWNT material show a 70% increase in thermal conductivity at 40K, rising to 125% at room…

Materials Science · Physics 2009-11-07 M. J. Biercuk , M. C. Llaguno , M. Radosavljevic , J. K. Hyun , J. E. Fischer , A. T. Johnson

A boost in the development of flexible and wearable electronics facilitates the design of new materials to be applied as transparent conducting films (TCFs). Although single-walled carbon nanotube (SWCNT) films are the most promising…

The high-bias electrical transport properties of suspended metallic single-walled carbon nanotubes (SWNTs) are investigated at various temperatures in vacuum, in various gases and when coated with molecular solids. It is revealed that…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 David Mann , Eric Pop , Jien Cao , Qian Wang , Kenneth Goodson , Hongjie Dai

The use of a novel three-dimensional graphene structure allows circumventing the limitations of the two-dimensional nature of graphene and its application in hydrogen absorption. Here we investigate hydrogen-bonding on monolayer graphene…

We investigated the adsorption of a single atom, hydrogen and aluminum, on single wall carbon nanotubes from first-principles. The adsorption is exothermic, and the associated binding energy varies inversely as the radius of the zigzag…

Materials Science · Physics 2009-11-07 O. Gulseren , T. Yildirim , S. Ciraci

Current methods for producing single-walled carbon nanotubes (SWNTs) lead to heterogeneous samples containing mixtures of metallic and semiconducting species with a variety of lengths and defects. Optical detection at the single nanotube…

We perform an extensive combinatorial search for optimal nanostructured hydrogen storage materials among various metal-decorated polymers using first-principles density-functional calculations. We take into account the zero-point vibration…

Materials Science · Physics 2009-11-11 Hoonkyung Lee , Woon Ih Choi , Jisoon Ihm

Current supercapacitors present several distinct limitations that severely inhibit the efficiency, power, and electrical capacitance of energy storage devices. Supercapacitors present an exciting prospect that has countless applications in…

Materials Science · Physics 2016-06-03 Sydney Marler

This computational study investigates glyphosate adsorption mechanisms on hydroxyl-functionalized carbon nanotubes (CNTs) as an alternative approach for environmental remediation. Single-walled CNTs with (10,0) zigzag chirality were…

Materials Science · Physics 2026-02-09 H. T. Silva , L. C. S. Faria , T. A. Aversi-Ferreira , I. Camps

We report on hydrogen adsorption and desorption on titanium-covered graphene in order to test theoretical proposals to use of graphene functionalized with metal atoms for hydrogen storage. At room temperature titanium islands grow with an…

Chemical Physics · Physics 2013-12-06 Torge Mashoff , Makoto Takamura , Shinichi Tanabe , Hiroki Hibino , Fabio Beltram , Stefan Heun

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…

Materials Science · Physics 2009-11-10 R. Falconi , J. A. Azamar , R. Escudero

This review covers recent achievements in the studies of quantum properties of the novel carbon materials (fullerite C60 and bundles of single-walled nanotubes (SWNT)) saturated with such light-mass species as helium isotopes, the…

Materials Science · Physics 2013-03-27 M. A. Strzhemechny , A. V. Dolbin

Identifying a nanostructure suitable for hydrogen storage presents a promising avenue for the secure and cost-effective utilization of hydrogen as a green energy source. This study introduces a systematic approach for selecting optimal…

Materials Science · Physics 2023-12-08 Shima Rezaie , Azahara Luna-Triguero

The excellent properties of transistors, wires, and sensors made from single-walled carbon nanotubes (SWNTs) make them promising candidates for use in advanced nanoelectronic systems. Gas-phase growth procedures such as the high pressure…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Danvers E. Johnston , Mohammad F. Islam , Arjun G. Yodh , Alan T. Johnson

Calculations of the conductance of a carbon nanotube (CNT)-molecule-CNT structure are in agreement with experimental measurements [1]. The features in the transmission correspond directly to the features of the isolated molecular orbitals.…

Other Condensed Matter · Physics 2015-05-13 Nicolas A. Bruque , M. K. Ashraf , Roger K. Lake

We report the electrical responses of thin and thick single-walled carbon nanotube (SWNT) networks to N2 and O2 adsorption. In the surface desorbed state exposure to N2 and O2 provide an increase in conductance of thin and thick SWNT…

Disordered Systems and Neural Networks · Physics 2009-05-13 C Morgan , M Baxendale

The structures and symmetries of single-walled carbon nanotubes (SWNTs) are introduced in detail. The physical properties of SWNTs induced by their symmetries can be described by tensors in mathematical point of view. It is found that there…

Mesoscale and Nanoscale Physics · Physics 2009-09-29 Z. C. Tu , Z. C. Ou-Yang

Using first-principles density functional theory simulations, we have observed that the scandium decorated C$_{24}$ fullerene can adsorb up to six hydrogen molecules with an average adsorption energy of -0.35 eV per H$_2$ and average…

Materials Science · Physics 2021-11-05 Vikram Mahamiya , Alok Shukla , Brahmananda Chakraborty