Electrochemical stability of self-assembled monolayers on gold

M.W.J. Beulen, Miryam I. Kastenberg, F.C.J.M. van Veggel, David Reinhoudt

Research output: Contribution to journalArticleAcademicpeer-review

84 Citations (Scopus)

Abstract

Most applications of functionalized self-assembled monolayers (SAMs) are based on changes in electrochemical properties. Such applications require electrochemical stability. This study reveals that there is only a limited potential window from -0.8 to +0.4 VMSE where self-assembled monolayers of sulfur-containing adsorbates (thiols and alkyl sulfides) on gold are electrochemically stable. A sensitive parameter describes the quality/stability of the monolayers (viz. the charge-transfer resistance). The substitution pattern of the adsorbates influences the window. Highly ordered monolayers, like that of tetrasulfide-based cavitand (10), are more resistant to extreme potentials. The stability window from -0.9 to +0.5 VMSE for this sulfide-based monolayer is comparable to that for a decanethiol monolayer
Original languageUndefined
Pages (from-to)7463-7467
JournalLangmuir
Volume14
Issue number14
DOIs
Publication statusPublished - 1998

Keywords

  • METIS-105967
  • IR-11046

Cite this

Beulen, M. W. J., Kastenberg, M. I., van Veggel, F. C. J. M., & Reinhoudt, D. (1998). Electrochemical stability of self-assembled monolayers on gold. Langmuir, 14(14), 7463-7467. https://doi.org/10.1021/la981031z