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The mechanism of the selective dispersion of single-walled carbon nanotubes (CNTs) by polyfluorene polymers is studied in this paper. Using extensive molecular dynamics simulations, it is demonstrated that diameter selectivity is the result…

Materials Science · Physics 2015-09-02 Hongliu Yang , Viktor Bezugly , Jens Kunstmann , Arianna Filoramo , Gianaurelio Cuniberti

The inability to synthesize single-wall carbon nanotubes (SWCNTs) possessing uniform electronic properties and chirality represents the major impediment to their widespread applications. Recently, there is growing interest to explore and…

Reductive hydrogenation was applied to two types of single-walled carbon nanotubes with different diameter range. Alkali metal intercalation, followed by reaction with methanol, led to hydrogenated products. Both yield and selectivity of…

Raman spectroscopy on carbon nanotubes (CNT) yields a rich variety of information owing to the close interplay between electronic and vibrational properties. In this paper, we review the properties of double wall carbon nanotubes (DWCNTs).…

Materials Science · Physics 2015-06-24 F. Simon , R. Pfeiffer , C. Kramberger , M. Holzweber , H. Kuzmany

High filling of single wall carbon nanotubes (SWCNT) with C$_{60}$ and C$_{70}$ fullerenes in solvent is reported at temperatures as low as 69 $^{o}$C. A 2 hour long refluxing in n-hexane of the mixture of the fullerene and SWCNT results in…

Materials Science · Physics 2016-08-16 F. Simon , H. Kuzmany , H. Rauf , T. Pichler , J. Bernardi , H. Peterlik , L. Korecz , F. Fülöp , A. Jánossy

We present a multispectroscopic structural study of various nanotube samples with different tube diameters. We determine for each sample the mean bundle and tube diameter as well as the tube diameter distribution. The possibility to work on…

Other Condensed Matter · Physics 2007-05-23 Nicolas Izard , Didier Riehl , Eric Anglaret

Chemical vapor deposition synthesis of single-walled carbon nanotubes experiments, using Fe catalyst, and alternating methane and carbon monoxide as carbon feedstocks, lead to the reversible formation of junctions between tubes of different…

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…

Biological Physics · Physics 2013-08-07 E. S. Sadki , S. Garaj , D. Vlassarev , J. A. Golovchenko , D. Branton

The hollow inside of single-wall carbon nanotubes (SWCNT) provides a unique degree of freedom to investigate chemical reactions inside this confined environment and to study the tube properties. It is reviewed herein, how encapsulating…

Materials Science · Physics 2007-05-23 Ferenc Simon , Rudolf Pfeiffer , Hans Kuzmany

Single-walled carbon nanotubes (SWNTs) are potential materials for future nanoelectronics. Since the electronic and optical properties of SWNTs strongly depend on tube diameter and chirality, obtaining SWNTs with narrow (n,m) chirality…

Materials Science · Physics 2007-11-28 Xiaolin Li , Xiaomin Tu , Sasa Zaric , Kevin Welsher , Won Seok Seo , Wei Zhao , Hongjie Dai

We report a detailed analysis of the optical properties of single wall carbon nanotubes with different mean diameters as produced by laser ablation. From a combined study of optical absorption, high resolution electron energy-loss…

Materials Science · Physics 2009-11-07 X. Liu , T. Pichler , M. Knupfer , M. S. Golden , J. Fink , H. Kataura , Y. Achiba

A correlation is observed between the diameter (d) distribution of single walled carbon nanotubes and the percentages of metallic and semiconducting tubes in materials synthesized at low temperature (600 C) by plasma-assisted chemical vapor…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Yiming Li , Shu Peng , David Mann , Jien Cao , Ryan Tu , K. J. Cho , Hongjie Dai

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…

Materials Science · Physics 2007-08-13 S. Inoue , T. Nakajima , K. Nomura , Y. Kikuchi

We theoretically studied the electronic and electrical properties of metallic and semiconducting peapods with encapsulated C_{60} (C_{60}@CNT) as a function of the carbon nanotube (CNT) diameter. For exothermic peapods (CNT diameter > 11.8…

Materials Science · Physics 2009-11-10 A. Rochefort

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…

Mesoscale and Nanoscale Physics · Physics 2021-01-28 J. Koltai , H. Kuzmany , T. Pichler , F. Simon

Double-walled carbon nanotubes (DWCNTs) combined the advantages of multi-walled (MW-) and single-walled (SW-) CNTs can be obtained by transforming the precursors (e.g. fullerene, ferrocene) into thin inner CNTs inside SWCNTs as templates.…

Materials Science · Physics 2019-01-28 Lei Shi , Jinquan Wei , Kazuhiro Yanagi , Takeshi Saito , Kecheng Cao , Ute Kaiser , Paola Ayala , Thomas Pichler

A simple method to disperse individual single walled carbon nanotubes (SWCNT ) on an atomically flat substrate is presented. Proper tuning of ac modes of atomic force microscopes(AFM) is discussed. This is needed to discriminate between…

Materials Science · Physics 2007-05-23 Richard Piner , Rodney S. Ruoff

Fullerence encapsulation has been proven to be a powerful approach to enhance mechanical and electronic properties of the single-walled carbon nanotubes (SWCNTs). However, some discrepancies emerge in recent studies of the fullerence…

Materials Science · Physics 2018-05-14 Jing Wan , Jin-Wu Jiang

Single-walled carbon nanotubes are hollow cylinders, that can grow centimeters long by carbon incorporation at the interface with a catalyst. They display semi-conducting or metallic characteristics, depending on their helicity, that is…

Materials Science · Physics 2018-11-14 Yann Magnin , Hakim Amara , François Ducastelle , Annick Loiseau , Christophe Bichara

Nanotube patterning may occur naturally upon the spontaneous self-assembly of biomolecules onto the surface of single-walled carbon nanotubes (SWNTs). It results in periodically alternating bands of surface properties, ranging from…

Biological Physics · Physics 2012-02-13 Sergey Pogodin , Nigel K. H. Slater , Vladimir A. Baulin
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