Hierarchical nanoparticle ensembles synthesized by liquid phase directed self?assembly

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 inst...

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Bibliographic Details
Authors: Fowlkes, J. D., Roberts, N. A., Wu, Y., Diez, Javier Alberto, Gonzalez, Alejandro Guillermo, Hartnett, C., Mahady, K., Afkhami, K., Kondic, L., Rack, P. D.
Format: article
Status:Published version
Publication Date:2014
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/4609
Online Access:http://hdl.handle.net/11336/4609
Access Level:Open access
Keyword:Nanoparticle
Self-Assembly
Rayleigh-Plateau
Filament Breakup
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Description
Summary: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.

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