title: Hierarchical nanoparticle ensembles synthesized by liquid phase directed self-assembly.
abstract: A liquid metal filament supported on a dielectric substrate was directed to fragment into an ordered, mesoscale particle ensemble. Imposing an undulated surface perturbation on the filament forced the development of a single unstable mode from the otherwise disperse, multimodal Rayleigh-Plateau instability. The imposed mode paved the way for a hierarchical spatial fragmentation of the filament into particles, previously seen only at much larger scales. Ultimately, nanoparticle radius control is demonstrated using a micrometer scale switch.
authors.affiliation: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37381, United States.
authors.forename: J D
authors.initials: JD
authors.lastname: Fowlkes
authors.forename: N A
authors.initials: NA
authors.lastname: Roberts
authors.forename: Y
authors.initials: Y
authors.lastname: Wu
authors.forename: J A
authors.initials: JA
authors.lastname: Diez
authors.forename: A G
authors.initials: AG
authors.lastname: González
authors.forename: C
authors.initials: C
authors.lastname: Hartnett
authors.forename: K
authors.initials: K
authors.lastname: Mahady
authors.forename: S
authors.initials: S
authors.lastname: Afkhami
authors.forename: L
authors.initials: L
authors.lastname: Kondic
authors.forename: P D
authors.initials: PD
authors.lastname: Rack