Molecular-scale non-contact AFM studies of ferroelectric organic thin films epitaxially grown on alkali halides

T. Fukuma, K. Kobayashi, Kei Noda, K. Ishida, T. Horiuchi, H. Yamada, K. Matsushige

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Epitaxially grown vinylidene fluoride oligomer thin films formed on KCl(0 0 1) surfaces were investigated by ultrahigh vacuum non-contact AFM (UHV-NC-AFM). Molecularly resolved NC-AFM images of organic thin layers on insulating surfaces were successfully obtained for the first time, which revealed the epitaxial growth process on a molecular-scale. It was found that the first monolayer formed on KCl(0 0 1) surface was composed of characteristic honeycomb-like structures while the following upper molecular layers consist of molecular-scale stripe structures. In addition, NC-AFM images of the first monolayer suggest a strong electrostatic interaction between the molecule in the layer and the AFM probe tip.

Original languageEnglish
Pages (from-to)103-108
Number of pages6
JournalSurface Science
Volume516
Issue number1-2
DOIs
Publication statusPublished - 2002 Sep 10
Externally publishedYes

Fingerprint

Alkali halides
alkali halides
Ferroelectric materials
atomic force microscopy
Thin films
Monolayers
thin films
Ultrahigh vacuum
Coulomb interactions
honeycomb structures
Epitaxial growth
Oligomers
vinylidene
oligomers
ultrahigh vacuum
fluorides
Molecules
electrostatics
probes
molecules

Keywords

  • Alkali halides
  • Atomic force microscopy
  • Epitaxy
  • Insulating surfaces
  • Surface structure, morphology, roughness, and topography

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Molecular-scale non-contact AFM studies of ferroelectric organic thin films epitaxially grown on alkali halides. / Fukuma, T.; Kobayashi, K.; Noda, Kei; Ishida, K.; Horiuchi, T.; Yamada, H.; Matsushige, K.

In: Surface Science, Vol. 516, No. 1-2, 10.09.2002, p. 103-108.

Research output: Contribution to journalArticle

Fukuma, T. ; Kobayashi, K. ; Noda, Kei ; Ishida, K. ; Horiuchi, T. ; Yamada, H. ; Matsushige, K. / Molecular-scale non-contact AFM studies of ferroelectric organic thin films epitaxially grown on alkali halides. In: Surface Science. 2002 ; Vol. 516, No. 1-2. pp. 103-108.
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