Self-assembly versus directed assembly of nanoparticles via pulsed laser induced dewetting of patterned metal films

Jason D. Fowlkes, Lou Kondic, Javier Diez, Yueying Wu, Philip D. Rack

Research output: Contribution to journalArticlepeer-review

124 Scopus citations

Abstract

A nanoscale, synthetic perturbation was all that was required to nudge a natural, self-assembly process toward significantly higher order. Metallic thin film strips were transformed into nanoparticle arrays by nanosecond, liquid-phase dewetting. Arrays formed according to an evolving Rayleigh - Plateau instability, yet nanoparticle diameter and pitch were poorly controlled. However, by patterning a nanoscale sinusoid onto the original strip edge, a precise nanoparticle diameter and pitch emerged superseding the naturally evolving Rayleigh - Plateau instability.

Original languageEnglish (US)
Pages (from-to)2478-2485
Number of pages8
JournalNano Letters
Volume11
Issue number6
DOIs
StatePublished - Jun 8 2011

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Keywords

  • Directed assembly
  • Rayleigh - Plateau
  • nanoscale lithography
  • pulsed laser melting
  • thin film dewetting

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