Small size limit to self-assembled monolayer formation on gold(111)

Joyanta K. Saha, Yoonho Ahn, Hyojeong Kim, George C. Schatz, Joonkyung Jang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Using molecular dynamics simulations, we show that the minimum diameter of ordered self-assembled monolayer (SAM) structures of alkanethiols on Au(111) is 1.9 nm at room temperature. This presumably sets the ultimate resolution of the SAM patterns created by nanolithography. For SAMs larger than 1.9 nm, the tilt direction of the alkyl chain precesses around the center of the SAM. This precession changes direction on a time scale that increases from picoseconds to nanoseconds as the SAM size varies from 2 to 3 nm.

Original languageEnglish (US)
Pages (from-to)13193-13199
Number of pages7
JournalJournal of Physical Chemistry C
Issue number27
StatePublished - Jul 14 2011

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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