Zipper Mechanism of Nanotube Fusion: Theory and Experiment

  • Mina Yoon
  • , Seungwu Han
  • , Gunn Kim
  • , Sang Bong Lee
  • , Savas Berber
  • , Eiji Osawa
  • , Jisoon Ihm
  • , Mauricio Terrones
  • , Florian Banhart
  • , Jean Christophe Charlier
  • , Nicole Grobert
  • , Humberto Terrones
  • , Pulickel M. Ajayan
  • , David Tománek

Research output: Contribution to journalArticlepeer-review

96 Scopus citations

Abstract

We propose a new microscopic mechanism to explain the unusually fast fusion process of carbon nanotubes. We identify the detailed pathway for two adjacent (5,5) nanotubes to gradually merge into a (10,10) tube, and characterize the transition states. The propagation of the fused region is energetically favorable and proceeds in a morphology reminiscent of a Y junction via a zipper mechanism, involving only Stone-Wales bond rearrangements with low activation barriers. The zipper mechanism of fusion is supported by a time series of high-resolution transmission electron microscopy observations.

Original languageEnglish (US)
JournalPhysical review letters
Volume92
Issue number7
DOIs
StatePublished - 2004

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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