ChemInform Abstract: Coalescence of Single‐Walled Carbon Nanotubes.

Terrones, Mauricio; Terrones, Humberto; Banhart, F.; Charlier, Jean Christophe; Ajayan, Pulickel M.

doi:10.1002/chin.200036013

Cited by 20 publications

(26 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…215,216 Another widely used parametrization for carbon by Xu et al 217 has been successfully applied to simulations of irradiation effects in carbon nanomaterials. 12,18,218 …”

Section: E Tight-binding Methodsmentioning

confidence: 99%

“…Experiments carried out for the technologically important carbon nanomaterials, such as nanotubes and graphene, showed that their atomic structure and morphology can be changed in a controllable manner by irradiation. [6][7][8][9][10][11][12][13][14][15][16] Besides, it was demonstrated that nanotubes can be interconnected or merged 9,12,17,18 and that irradiation can give rise to many interesting phenomena, such as extreme pressure inside nanotubes 19 or fullerenelike "onions," 6,20 so that these systems can be used as nanolaboratories for studying pressure-induced transformations at the nanoscale. Furthermore, recent experiments indicate that ion, [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] electron, 6,39-52 and high energy photon [53][54][55][56] irradiation can be used to tailor the mechanical, 8,10 electronic, 11,…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ion and electron irradiation-induced effects in nanostructured materials

Krasheninnikov¹,

Nordlund²

2010

Journal of Applied Physics

947

591

View full text Add to dashboard Cite

A common misconception is that the irradiation of solids with energetic electrons and ions has exclusively detrimental effects on the properties of target materials. In addition to the well-known cases of doping of bulk semiconductors and ion beam nitriding of steels, recent experiments show that irradiation can also have beneficial effects on nanostructured systems. Electron or ion beams may serve as tools to synthesize nanoclusters and nanowires, change their morphology in a controllable manner, and tailor their mechanical, electronic, and even magnetic properties. Harnessing irradiation as a tool for modifying material properties at the nanoscale requires having the full microscopic picture of defect production and annealing in nanotargets. In this article, we review recent progress in the understanding of effects of irradiation on various zero-dimensional and one-dimensional nanoscale systems, such as semiconductor and metal nanoclusters and nanowires, nanotubes, and fullerenes. We also consider the two-dimensional nanosystem graphene due to its similarity with carbon nanotubes. We dwell on both theoretical and experimental results and discuss at length not only the physics behind irradiation effects in nanostructures but also the technical applicability of irradiation for the engineering of nanosystems.

show abstract

“…215,216 Another widely used parametrization for carbon by Xu et al 217 has been successfully applied to simulations of irradiation effects in carbon nanomaterials. 12,18,218 …”

Section: E Tight-binding Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ion and electron irradiation-induced effects in nanostructured materials

Krasheninnikov¹,

Nordlund²

2010

Journal of Applied Physics

947

591

View full text Add to dashboard Cite

show abstract

“…The common structural defects existing in CNTs are atomic vacancies and topologic defects, of which the former corresponds to the deficiency of carbon atoms in a CNT, and the latter is associated with the network topology deviated from the hexagon rings. These defects have been studied extensively both theoretically and experimentally [15][16][17][18][19][20][21][22][23][24][25][26][27]. Experiments observe that carbon nanotubes can be released under electrons or ions irradiation [16,22], leaving behind vacancies in CNTs.…”

Section: Introductionmentioning

confidence: 97%

Studies on structural defects in carbon nanotubes

Pan

2009

Front. Phys. China

View full text Add to dashboard Cite

“…Band gap tailoring and carbon nanotube interconnects have been achieved using charged particle beams as well. [4][5][6][7] Furthermore, it appears that it is possible to modify their physical properties by changing their structure locally only along a short section of the tube. 8 Most of the works devoted to study the effects of electron or ion-beam irradiation have involved single-walled and multiwalled carbon nanotubes.…”

Section: Introductionmentioning

confidence: 99%

Resonance Raman spectroscopy in Si and C ion-implanted double-wall carbon nanotubes

et al. 2009

View full text Add to dashboard Cite

The effect of 170 keV Si and 100 keV C ion bombardment on the structure and properties of highly pure, double-wall carbon nanotubes has been investigated using resonance Raman spectroscopy. The implantations were performed at room temperature with ion doses ranging between 1 ϫ 10 13 ions/ cm 2 and 1 ϫ 10 15 ions/ cm 2 . As expected, the Si irradiation created more disorder than the C irradiation for the same ion fluence. For both species, as the ion-implantation fluence increased, the D-band intensity increased, while the G-band intensity decreased, indicating increased lattice disorder, in analogous form to other forms of graphite and other nanotube types. The frequency of the G band decreased with increasing dose, reflecting a softening of the phonon mode due to lattice defects. With increasing ion fluence, the radial breathing modes ͑RBMs͒ of the outer tubes ͑either semiconducting or metallic͒ disappeared before the respective RBM bands from the inner tubes, suggesting that the outer nanotubes are more affected than the inner nanotubes by the ion irradiation. After Si ion bombardment to a dose of 1 ϫ 10 15 ions/ cm 2 , the Raman spectrum resembled that of highly disordered graphite, indicating that the lattice structures of the inner and outer nanotubes were almost completely destroyed. However, laser annealing partially restored the crystalline structure of the nanotubes, as evidenced by the re-emergence of the G and RBM bands and the significant attenuation of the D band in the Raman spectrum.

show abstract

ChemInform Abstract: Coalescence of Single‐Walled Carbon Nanotubes.

Cited by 20 publications

References 1 publication

Ion and electron irradiation-induced effects in nanostructured materials

Ion and electron irradiation-induced effects in nanostructured materials

Studies on structural defects in carbon nanotubes

Resonance Raman spectroscopy in Si and C ion-implanted double-wall carbon nanotubes

Contact Info

Product

Resources

About