A low energy electron microscopy study of the initial growth, structure and thermal stability of BDA-domains on Cu(001)

F.S. Khokhar, Raoul van Gastel, Daniel Schwarz, Daniel Schwarz, Henricus J.W. Zandvliet, Bene Poelsema

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9 Citations (Scopus)

Abstract

The growth of 4,4′-biphenyldicarboxylic acid (BDA) on Cu(001) has been studied using low energy electron microscopy and selective area low energy electron diffraction. The emergence of large islands and hydrogen bonding to perpendicularly oriented, adjacent molecules is confirmed. The two benzene rings of adsorbed BDA are twisted along the molecular axis. Unconventional growth of the domains, followed by a second nucleation stage, is observed at room temperature. This unanticipated feature is attributed to the accumulation of stress in the islands. Ostwald ripening in the films and the decay of BDA domains at 448 K exhibits features that are consistent with diffusion limited behavior
Original languageEnglish
Article number124706
Pages (from-to)-
Number of pages7
JournalJournal of chemical physics
Volume135
Issue number12
DOIs
Publication statusPublished - 2011

Keywords

  • Hydrogen bonds
  • Diffusion
  • Nucleation
  • Electron microscopy
  • IR-80443
  • Organic compounds
  • molecular beam epitaxial growth
  • low energy electron diffraction
  • METIS-281078
  • Powders

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