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The spherical curvature induced by pentagons in corannulenes and hexagonal sheets is shown to be the basic constituent that controls the growth of fullerenes and single-walled carbon nanotubes (SWNTs) in soot forming and carbon vapour…

Mesoscale and Nanoscale Physics · Physics 2016-09-07 Shoaib Ahmad

In this article, we report the results of relatively facile fabrication of carbon nanodots from single-walled and multi-walled carbon nanotubes (SWCNT and MWCNT). The results of X-ray photoelectron spectroscopy (XPS) and Raman measurements…

Mesoscale and Nanoscale Physics · Physics 2023-07-19 D. W. Boukhvalov , D. A. Zatsepin , Yu. A. Kuznetsova , V. I. Pryakhina , A. F. Zatsepin

Tweaking the properties of carbon nanotubes is a prerequisite for their practical applications. Here we demonstrate fine-tuning the electronic properties of single-wall carbon nanotubes via filling with ferrocene molecules. The evolution of…

AFM manipulation was used to controllably stretch individual metallic single-walled carbon nanotubes (SWNTs). We have found that SWNTs can sustain elongations as great as 30% without breaking. Scanned gate microscopy and transport…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 D. Bozovic , M. Bockrath , J. H. Hafner , C. M. Lieber , H. Park , M. Tinkham

We develop a continuous theory of low-frequency dynamics for nanotubes with truly two-dimensional (2D) walls constituted by single-atom monolayer. In this frame topological bending elasticity of the monolayer is not related to its vanishing…

Materials Science · Physics 2015-06-16 S. B. Rochal , V. L. Lorman , Yu. I. Yuzyuk

We present a theoretical study of the role of the local environment in the electronic properties of carbon nanotubes: isolated single- and multi-wall nanotubes, nanotube-ropes, tubes supported on gold and cutted to finite length.…

Materials Science · Physics 2009-10-31 Angel Rubio

New forms of carbon-based materials have received great attention, and the developed materials have found many applications in nanotechnology. Interesting novel carbon structures include the carbon peapods, which are comprised of fullerenes…

Materials Science · Physics 2020-01-22 J. M. De Sousa , C. F. Woellner , L. D. Machado , P. A. S. Autreto , D. S. Galvao

We provide a simple scheme for predicting the electronic structure of van-der-Waals bound systems, based on the mere knowledge of the electronic structure of the subunits. We demonstrate this with the example of nano-peapods, consisting of…

Materials Science · Physics 2013-01-21 Matus Milko , Peter Puschnig , Claudia Draxl

Carbon nanotubes (CNTs) have attracted increasing attention because of their unique structural, mechanical, and electronic properties. Surface chemistry modifications are also useful and critical to manipulate the adsorptive properties of…

Materials Science · Physics 2007-08-15 K. -S. Lin , Ruey-Bing Li , Frank Lee , Li-Cheng Lou , Su-Wei Chiu

We used scattering-type scanning near-field optical microscopy (s-SNOM) to characterize nickel nanoclusters grown inside single-walled carbon nanotubes (SWCNT). The nanotubes were filled with Ni(II) acetylacetonate and the molecules were…

Carbon nanotube (CNT) fiber is formed by assembling millions of individual tubes. The assembly feature provides the fiber with rich interface structures and thus various ways of energy dissipation, as reflected by the non-zero loss tangent…

Materials Science · Physics 2015-11-18 Jingna Zhao , Xiaohua Zhang , Zhijuan Pan , Qingwen Li

We observe current rectification in a molecular diode consisting of a semiconducting single-wall carbon nanotube and an impurity. One half of the nanotube has no impurity, and it has a current-voltage (I-V) charcteristic of a typical…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 R. D. Antonov , A. T. Johnson

The synthesis of one-dimensional van der Waals heterostructures was realized recently, which opens up new possibilities for prospective applications in electronics and optoelectronics. The even reduced dimension will enable novel properties…

Mesoscale and Nanoscale Physics · Physics 2026-02-06 Ya Feng , Henan Li , Taiki Inoue , Shohei Chiashi , Slava V. Rotkin , Rong Xiang , Shigeo Maruyama

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…

Materials Science · Physics 2026-02-20 Daniel Hedman

We performed first principles calculations on work functions of single wall carbon nanotubes (SWNTs), which can be divided into two classes according to tube diameter (D). For class I tubes (D > 1 nm), work functions lie within a narrow…

Materials Science · Physics 2009-11-11 Bin Shan , Kyeongjae Cho

Carbon nanotubes are promising building blocks for various nanoelectronic components. A highly desirable geometry for such applications is a coil. However, coiled nanotube structures reported so far were inherently defective or had no free…

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

Helical method of tube formation for band structure calculations and Hartree-Fock self-consistent field method (HF-SCF) modified for periodic solids have been applied in study of electronic properties of single-wall silicon nanotubes…

Mesoscale and Nanoscale Physics · Physics 2016-01-06 Pavol Banacky , Jozef Noga , Vojtech Szocs

We present a novel two-step approach for the selective area growth (SAG) of GaAs nanowires (NWs) by molecular beam epitaxy which has enabled a detailed exploration of the NW diameter evolution. In the first step, the growth parameters are…

Mesoscale and Nanoscale Physics · Physics 2018-07-10 Hanno Küpers , Ryan B. Lewis , Abbes Tahraoui , Mathias Matalla , Olaf Krüger , Faebian Bastiman , Henning Riechert , Lutz Geelhaar

Usually, in optical spectra of double-walled carbon nanotubes (DWCNTs) weak van der Waals coupling between the layers leads only to a small shift of transition energies with respect to their values in pristine single-walled nanotubes.…

Mesoscale and Nanoscale Physics · Physics 2020-09-30 D. V. Chalin , S. B. Rochal