New insights into the properties and interactions of carbon chains as revealed by HRTEM and DFT analysis

Gilberto Casillas, Alvaro Mayoral, Mingjie Liu, Arturo Ponce, Vasilii I. Artyukhov, Boris I. Yakobson, Miguel Jose-Yacaman

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Atomic carbon chains have raised interest for their possible applications as graphene interconnectors as the thinnest nanowires; however, they are hard to synthesize and subsequently to study. We present here a reproducible method to synthesize carbon chains in situ TEM. Moreover, we present a direct observation of the bond length alternation in a pure carbon chain by aberration corrected TEM. Also, cross bonding between two carbon chains, 5 nm long, is observed experimentally and confirmed by DFT calculations. Finally, while free standing carbon chains were observed to be straight due to tensile loading, a carbon chain inside the walls of a carbon nanotube showed high flexibility.

Original languageEnglish (US)
Pages (from-to)436-441
Number of pages6
JournalCarbon
Volume66
DOIs
StatePublished - Jan 2014
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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