Fabrication of ordered metallic nanocluster arrays using a focused ion beam

Matthew D. McMahon, Anthony B. Hmelo, Rene Lopez, Wesley T. Ryle, Allen T. Newton, Richard F. Haglund, Leonard C. Feldman, Robert A. Weller, Robert H. Magruder

Research output: Contribution to journalConference articlepeer-review


We have fabricated ordered arrays of gold nanocrystals on FIB-processed silicon substrates using electroless deposition. We have also fabricated ordered arrays of silver nanocrystals on silicon with diameters 40-60 nm separated by 180 nm center-to-center, using pulsed-laser deposition (PLD) to deposit silver on the substrate. The metal nanocrystal arrays are characterized using SEM as well as AFM and energy dispersive x-ray (EDX) analysis. AFM confirms particle sizes measured in SEM, and EDX analysis demonstrates that Ag preferentially clusters at sites that have been damaged by the ion beam. These results suggest that the FIB-PLD combination can be used to create ordered arrays of Ag nanocrystals with diameters of 10 nm or less.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Publication statusPublished - 2002
EventThree-Dimensional Nanoengineered Assemblies - Boston, MA, United States
Duration: Dec 1 2002Dec 5 2002

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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