title: Striped nanowires and nanorods from mixed SAMS.
abstract: We investigate the use of mixed self-assembled monolayers (SAMs) for creating nanoscale striped patterns on nanowires and nanorods. Our simulations predict that SAMs comprised of an equal composition of length-mismatched, thermodynamically incompatible surfactants adsorbed on nanowire surfaces self-organize into equilibrium stripes of alternating composition always perpendicular, rather than parallel, to the nanowire axis. We support the simulation results with preliminary experimental investigations of gold nanorods coated with binary mixtures of ligand molecules, which show stripes roughly perpendicular to the rod axis in all cases.
authors.affiliation: Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, USA.
authors.forename: Chetana
authors.initials: C
authors.lastname: Singh
authors.forename: Ying
authors.initials: Y
authors.lastname: Hu
authors.forename: Bishnu P
authors.initials: BP
authors.lastname: Khanal
authors.forename: Eugene R
authors.initials: ER
authors.lastname: Zubarev
authors.forename: Francesco
authors.initials: F
authors.lastname: Stellacci
authors.forename: Sharon C
authors.initials: SC
authors.lastname: Glotzer