Femtosecond laser nanosurgery of defects in carbon nanotubes

Aldo H. Romero, Martin E. Garcia, Felipe Valencia, Humberto Terrones, Mauricio Terrones, Harald Olaf Jeschke

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

All self-assembled nanostructures, like carbon nanotubes, exhibit structural imperfections that affect their electronic and mechanical properties and constitute a serious problem for the development of novel electronic nanodevices. Very common defects in nanotubes are pentagonheptagon pairs, in which the replacement of four hexagons by two pentagons and two heptagons disrupts the perfect hexagonal lattice. In this work, we demonstrate that these defects can be eliminated efficiently with the help of femtosecond laser pulses. By performing nonadiabatic molecular dynamics simulations, we show that in the laser-induced electronic nonequilibrium the pentagon-heptagon pair is transformed back into four hexagons without producing any irreversible damage to the rest of the nanotube.

Original languageEnglish
Pages (from-to)1361-1365
Number of pages5
JournalNano Letters
Volume5
Issue number7
DOIs
Publication statusPublished - Jul 2005
Externally publishedYes

Fingerprint

Carbon Nanotubes
Ultrashort pulses
Carbon nanotubes
hexagons
carbon nanotubes
Nanotubes
Defects
nanotubes
defects
electronics
lasers
Electronic properties
Molecular dynamics
Nanostructures
mechanical properties
molecular dynamics
damage
Mechanical properties
Lasers
Computer simulation

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Chemistry (miscellaneous)

Cite this

Romero, A. H., Garcia, M. E., Valencia, F., Terrones, H., Terrones, M., & Jeschke, H. O. (2005). Femtosecond laser nanosurgery of defects in carbon nanotubes. Nano Letters, 5(7), 1361-1365. https://doi.org/10.1021/nl050626t

Femtosecond laser nanosurgery of defects in carbon nanotubes. / Romero, Aldo H.; Garcia, Martin E.; Valencia, Felipe; Terrones, Humberto; Terrones, Mauricio; Jeschke, Harald Olaf.

In: Nano Letters, Vol. 5, No. 7, 07.2005, p. 1361-1365.

Research output: Contribution to journalArticle

Romero, AH, Garcia, ME, Valencia, F, Terrones, H, Terrones, M & Jeschke, HO 2005, 'Femtosecond laser nanosurgery of defects in carbon nanotubes', Nano Letters, vol. 5, no. 7, pp. 1361-1365. https://doi.org/10.1021/nl050626t
Romero AH, Garcia ME, Valencia F, Terrones H, Terrones M, Jeschke HO. Femtosecond laser nanosurgery of defects in carbon nanotubes. Nano Letters. 2005 Jul;5(7):1361-1365. https://doi.org/10.1021/nl050626t
Romero, Aldo H. ; Garcia, Martin E. ; Valencia, Felipe ; Terrones, Humberto ; Terrones, Mauricio ; Jeschke, Harald Olaf. / Femtosecond laser nanosurgery of defects in carbon nanotubes. In: Nano Letters. 2005 ; Vol. 5, No. 7. pp. 1361-1365.
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