Self-assembly of organometallic clusters onto the surface of gold

Ilse Y. Guzman-Jimenez, K. H. Whitmire, Kayo Umezama-Vizzini, Ramon Colorado, Junghwan Do, Allan Jacobson, T. Randall Lee, Seunghun Hong, Chad A. Mirkin

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We report the preparation and characterization of thin films generated via the solution-phase self-assembly of organometallic chalcogen-containing cluster compounds onto the surface of gold. The following anionic complexes were used as thin film precursors: [Fe3(CO)9E]2- and [HFe3(CO)9E]-, where E=S, Se, and Te. The films were prepared by adsorption from organic solvents (i.e. methanol, acetonitrile, acetone, and dicholoromethane) onto evaporated gold and were characterized by ellipsometry, polarization-modulation infrared reflection-absorption spectroscopy (PM-IRRAS), X-ray diffraction (XRD), atomic force microscopy (AFM), quartz crystal microbalance (QCM) and X-ray photoelectron spectroscopy (XPS). The data demonstrate that the clusters strongly attach to gold and that the films most likely exist as bilayers rather than monolayers.

Original languageEnglish (US)
Pages (from-to)131-137
Number of pages7
JournalThin Solid Films
Volume401
Issue number1-2
DOIs
StatePublished - Dec 17 2001

Keywords

  • Clusters
  • Organometallic
  • Self-assembly

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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