Chemisorption of azafullerene on silicon: Isolating C59N monomers

M. J. Butcher, F. H. Jones, B. N. Cotier, M. D.R. Taylor, P. Moriarty, P. H. Beton, K. Prassides, N. Tagmatarchis, C. Comicioli, C. Ottaviani, C. Crotti

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

We find that C59N exists as a monomer on Si(111) and Si(100) surfaces, in contrast to the dimerized state ((C59N)2) it adopts in the bulk azafullerene solid. A combination of scanning tunnelling microscopy, photoelectron spectroscopy and X-ray absorption measurements indicates that, as for C60, the chemical bond between C59N and the Si(111)-(7×7) surface involves the formation of covalent Si-C bonds. We argue that the strong C59N-surface interaction on both Si(111) and Si(100) precludes molecular diffusion and thus prohibits the formation of dimers. The dominant role of molecule-surface, as opposed to intermolecular interactions is confirmed by scanning tunnelling microscope-based molecular manipulation experiments.

Original languageEnglish
Pages (from-to)202-205
Number of pages4
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume74
Issue number1
DOIs
Publication statusPublished - 2000 May 1
Event3rd International Conference on Low Dimensional Structures and Devices (LDSD'99) - Antalya, Turkey
Duration: 1999 Sep 151999 Sep 17

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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