Hierarchical nanoparticle ensembles synthesized by liquid phase directed self-assembly.

نویسندگان

  • J D Fowlkes
  • N A Roberts
  • Y Wu
  • J A Diez
  • A G González
  • C Hartnett
  • K Mahady
  • S Afkhami
  • L Kondic
  • P D Rack
چکیده

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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عنوان ژورنال:
  • Nano letters

دوره 14 2  شماره 

صفحات  -

تاریخ انتشار 2014