Properties of one-dimensional molybdenum nanowires in a confined environment

Vincent Meunier, Hiroyuki Muramatsu, Takuya Hayashi, Yoong Ahm Kim, Daisuke Shimamoto, Humberto Terrones, Mildred S. Dresselhaus, Mauricio Terrones Maldonado, Morinobu Endo, B. G. Sumpter

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

The atomistic mechanism for the self-assembly of molybdenum into one-dimensional metallic nanowires in a confined environment such as a carbon nanotube is investigated using quantum mechanical calculations. We find that Mo does not organize into linear chains but rather prefers to form four atom per unit cell nanowires that consist of a subunit of a Mo body-centered cubic crystal. Our model explains the 0.3 nm separation between features measured by high-resolution transmission electron microscopy and why the nanotube diameter must be in the 0.70-1.0 nm range to accommodate the smallest stable one-dimensional wire. We also computed the electronic band structure of the Mo wires inside a nanotube and found significant hybridization with the nanotube states, thereby explaining the experimentally observed quenching of fluorescence and the damping of the radial breathing modes as well as an increased resistance to oxidation.

Original languageEnglish (US)
Pages (from-to)1487-1492
Number of pages6
JournalNano Letters
Volume9
Issue number4
DOIs
StatePublished - Apr 8 2009

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Properties of one-dimensional molybdenum nanowires in a confined environment'. Together they form a unique fingerprint.

  • Cite this

    Meunier, V., Muramatsu, H., Hayashi, T., Kim, Y. A., Shimamoto, D., Terrones, H., Dresselhaus, M. S., Terrones Maldonado, M., Endo, M., & Sumpter, B. G. (2009). Properties of one-dimensional molybdenum nanowires in a confined environment. Nano Letters, 9(4), 1487-1492. https://doi.org/10.1021/nl803438x