Multiterminal junctions formed by heating ultrathin single-walled carbon nanotubes

F. Y. Meng, San-Qiang Shi, D. S. Xu, R. Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

37 Citations (Scopus)


Ultra-thin single-walled carbon nanotubes can be welded by heating to form molecular multi-terminal junctions at elevated temperatures without initially introducing structural defects such as vacancies and interstitials. This was demonstrated by classical molecular dynamics simulations with an empirical Brenner II potential and quantum mechanics calculation with PM3. The dynamic formation pathway of the junctions between crossed nanotube pairs was simulated. Junctions were established by forming intertube sp3-related covalent bonds and breaking of bonds in original nanotubes. The final configuration of junctions depends on the chirality of the crossed tube pairs and reaction temperature. Junction formation from nanotubes with larger diameters requires higher temperature.
Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number12
Publication statusPublished - 1 Sep 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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