title: High resolution non-contact AFM imaging of liquids condensed onto chemically nanopatterned surfaces.
abstract: The wetting of ethanol and octane on chemically nanopatterned surfaces has been investigated using Atomic Force Microscopy (AFM) under controlled environmental conditions. The patterns were generated on a methyl-terminated, organic monolayer using an AFM electro-oxidation process. The subsequent wetting of the organic liquids was studied using non-contact mode AFM under equilibrium conditions with the vapor. This study of condensed nanoliquids provides the first reliable measurements of sub 100 nm liquid profile shapes. The derived contact angles give an estimate of the line tension.
authors.affiliation: Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA. checco@bnl.gov
authors.forename: Antonio
authors.initials: A
authors.lastname: Checco
authors.forename: Yuguang
authors.initials: Y
authors.lastname: Cai
authors.forename: Oleg
authors.initials: O
authors.lastname: Gang
authors.forename: Benjamin M
authors.initials: BM
authors.lastname: Ocko
mesh_terms: D000431:Ethanol; D007089:Image Enhancement / Q000379:methods*; D018625:Microscopy, Atomic Force; D049329:Nanostructures / Q000648:ultrastructure*; D009795:Octanes
chemical_list: D009795:Octanes; D000431:Ethanol; C026728:octane