title: Potential-directed assembly of aryl iodonium salts onto silicon {100} hydride terminated and platinum surfaces.
abstract: A novel electrograft method of forming covalent bonds directly to silicon hydride or platinum surfaces has been demonstrated with the use of iodonium salt precursors. Initially, a silicon substrate is treated with a dilute hydrofluoric acid wash to ensure a hydride-passivated surface, which is immersed in a solution of iodonium salt dissolved in a solution of tetrabutylammonium tetrafluoroborate in acetonitrile. Grafting is accomplished by applying a negative bias to the silicon substrate. Directed assembly has been demonstrated with Pt substrates.
authors.forename: Shawn M
authors.initials: SM
authors.lastname: Dirk
authors.forename: Svitlana
authors.initials: S
authors.lastname: Pylypenko
authors.forename: Stephen W
authors.initials: SW
authors.lastname: Howell
authors.forename: Julia E
authors.initials: JE
authors.lastname: Fulghum
authors.forename: David R
authors.initials: DR
authors.lastname: Wheeler