Tailoring of a smooth polycrystalline gold surface as a suitable anchoring site for a self-assembled monolayer

Satoshi Tsuneda, Takao Ishida, Naoki Nishida, Masahiko Hara, Hiroyuki Sasabe, Wolfgang Knoll

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We investigated an effective pretreatment method for a polycrystalline gold film surface on which an ordered self-assembled monolayer (SAM) could form. The wetting properties of the SAM surface determined by the hysteresis between advancing and receding contact angles against water and hexadecane revealed that the ordered SAM was formed on the gold surface pretreated with a combination of UV/ozone exposure and ethanol rinsing prior to SAM formation. The change in optical properties of the gold film surface was observed by surface plasmon spectroscopy (SPS), indicating that pure ethanol rinsing makes the gold surface smooth by removing small gold grains oxidized by UV/ozone exposure.

Original languageEnglish
Pages (from-to)142-147
Number of pages6
JournalThin Solid Films
Volume339
Issue number1-2
DOIs
Publication statusPublished - 1999 Jan 1

Keywords

  • Gold
  • Monolayers
  • Optical properties
  • Surface roughness

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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