title: High-fidelity chemical patterning on oxide-free germanium.
abstract: Oxide-free germanium can be chemically patterned directly with self-assembled monolayers of n-alkanethiols via submerged microcontact printing. Native germanium dioxide is water soluble; immersion activates the germanium surface for self-assembly by stripping the oxide. Water additionally provides an effective diffusion barrier that prevents undesired ink transport. Patterns are stable with respect to molecular exchange by carboxyl-functionalized thiols.
authors.affiliation: California NanoSystems Institute and Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA.
authors.forename: J Nathan
authors.initials: JN
authors.lastname: Hohman
authors.forename: Moonhee
authors.initials: M
authors.lastname: Kim
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Lawrence
authors.forename: Patrick D
authors.initials: PD
authors.lastname: McClanahan
authors.forename: Paul S
authors.initials: PS
authors.lastname: Weiss
mesh_terms: D004129:Dimethylpolysiloxanes / Q000737:chemistry; D005857:Germanium / Q000737:chemistry*; D055616:Microtechnology / Q000379:methods*; D011327:Printing / Q000379:methods*
chemical_list: D004129:Dimethylpolysiloxanes; D005857:Germanium; C013830:baysilon