Tuning of solid phase in supracrystals made of silver nanocrystals

A. I. Henry, A. Courty, M. P. Pileni*, P. A. Albouy, J. Israelachvili

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Decanethiol-passivated silver nanocrystals are shown, by small-angle X-ray diffraction, to organize into hexagonal close packed or face centered cubic (fcc) structures depending on the substrate temperature. When the nanocrystals are passivated by dodecanethiols, fcc and body centered cubic lattices as well as disordered arrangements are observed. The different crystalline phases correspond to thermodynamic equilibrium states. The passivant chain length is shown to control the interactions between the nanocrystals and consequently the superlattice structure.

Original languageEnglish (US)
Pages (from-to)2000-2005
Number of pages6
JournalNano letters
Volume8
Issue number7
DOIs
StatePublished - Jul 1 2008

ASJC Scopus subject areas

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

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