Regularly coiled carbon nanotubes

L. Bíró, G. Márk, Ph Lambin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Regularly coiled carbon nanotubes, their structure and formation mechanism are puzzling questions since many years. The first models were based on the very regular incorporation of a small fraction (of the order of 10%) of nonhexagonal (n-Hx) rings: (pentagons and heptagons) in a perfect hexagonal (Hx) lattice. It is difficult to understand by which mechanism takes place such a regular incorporation of isolated n-Hx rings. In the present work a new family of Haeckelite nanotubes is generated in a systematic way by rolling up a two-dimensional three-fold coordinated carbon network composed of pentagon-heptagon pairs and hexagons in proportion 2:3. In this model the n-Hx rings are treated like regular building blocks of the structure. Cohesion energy calculation shows that the stability of the generated 3D Haeckelite structures falls between that of straight carbon nanotubes and that of C60. Electronic density of states of the Haeckelite computed with a tight-binding Hamiltonian that includes the C-μ, orbitals only shows that the structures are semiconductor. The relation of the structures with experimental observations is discussed.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages170-178
Number of pages9
Volume5118
DOIs
Publication statusPublished - 2003
EventNonatechnology - Maspalomas, Gran Canaria, Spain
Duration: May 19 2003May 21 2003

Other

OtherNonatechnology
CountrySpain
CityMaspalomas, Gran Canaria
Period5/19/035/21/03

Fingerprint

Carbon nanotubes
carbon nanotubes
Hamiltonians
Electronic density of states
rings
Nanotubes
hexagons
cohesion
Semiconductor materials
Carbon
nanotubes
proportion
orbitals
carbon
electronics
energy

Keywords

  • Coiled carbon nanotube
  • Haeckelite tubes
  • Non-hexagonal rings

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Bíró, L., Márk, G., & Lambin, P. (2003). Regularly coiled carbon nanotubes. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5118, pp. 170-178) https://doi.org/10.1117/12.498942

Regularly coiled carbon nanotubes. / Bíró, L.; Márk, G.; Lambin, Ph.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5118 2003. p. 170-178.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bíró, L, Márk, G & Lambin, P 2003, Regularly coiled carbon nanotubes. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 5118, pp. 170-178, Nonatechnology, Maspalomas, Gran Canaria, Spain, 5/19/03. https://doi.org/10.1117/12.498942
Bíró L, Márk G, Lambin P. Regularly coiled carbon nanotubes. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5118. 2003. p. 170-178 https://doi.org/10.1117/12.498942
Bíró, L. ; Márk, G. ; Lambin, Ph. / Regularly coiled carbon nanotubes. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5118 2003. pp. 170-178
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