Nanometer Scale Phase Separation in Mixed Composition Self-Assembled Monolayers

Abstract

Mixed composition monolayers of similar n-alkanethiols on Au(111) are formed by self-assembly. While the average surface composition of these films accurately reflects the composition of the deposition solution, scanning tunneling microscopy and secondary ion mass spectroscopy measurements show that the films phase separate on the nanometer scale. Scanning tunneling microscopy has been used to follow molecular motions within these films. We discuss our observations in terms of the formation and stability of the phase segregated domains, and their potential importance in nanoscale applications.

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Document Details

Document Type
Technical Report
Publication Date
Jul 14, 1994
Accession Number
ADA282671

Entities

People

  • A. N. Parikh
  • D. L. Allara
  • M. C. Wood
  • S. J. Stranick
  • S. V. Atre

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Chemistry
  • Composite Materials
  • Films
  • Mass Spectroscopy
  • Materials
  • Materials Laboratories
  • Materials Science
  • Molecular Dynamics
  • Monomolecular Films
  • Nanotechnology
  • Pennsylvania
  • Phase
  • Phase Separation
  • Self Assembled Monolayers
  • Spectra
  • Spectroscopy
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Nanoscale Plasmonic Nanotechnology
  • Theoretical Analysis.
  • Thin Film Deposition Science.