title: Electrochemical stability of self-assembled monolayers on nanoporous Au.
abstract: Desorption of thiolate self-assembled monolayers (SAMs) seriously limits the fabrication of thiol-based devices. Here we demonstrate that nanoporous Au produced by dealloying Au-Ag alloys exhibits high electrochemical stability against thiolate desorption. Nanoporous Au has many defective sites, lattice strain and residual Ag on the ligament surface. First-principles calculations indicate that these surface aspects increase the binding energy between a SAM and the surface of nanoporous Au.
authors.affiliation: Department of Energy Science and Technology, Graduate School of Energy Science, Kyoto University, Kyoto, Japan. hakamada.masataka.3x@kyoto-u.ac.jp
authors.forename: Masataka
authors.initials: M
authors.lastname: Hakamada
authors.forename: Masaki
authors.initials: M
authors.lastname: Takahashi
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Furukawa
authors.forename: Kazuki
authors.initials: K
authors.lastname: Tajima
authors.forename: Kazuki
authors.initials: K
authors.lastname: Yoshimura
authors.forename: Yasumasa
authors.initials: Y
authors.lastname: Chino
authors.forename: Mamoru
authors.initials: M
authors.lastname: Mabuchi