Designable formation of metal nanoparticle array with the deposition of negatively charged nanoparticles

Sayuri Kawabata, Yasutomo Naono, Yosuke Taguchi, Seung H. Huh, Atsushi Nakajima

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Ultrafine gold and platinum nanoparticles (NPs) were fabricated by pulsed laser ablation in helium gas and the NPs 2-15 nm in diameter were selectively classified by an electrostatic size-selection technique employing a low-pressure differential mobility analyzer (LP-DMA). The spherical NPs obtained showed a narrower distribution of diameters of anionic NPs over cationic NPs. With this knowledge, the anionic NPs were deposited onto silicon substrates designed by electron beam lithography processing, and designable patterns of arrayed NPs were produced by removing the photoresist layer.

Original languageEnglish
Pages (from-to)6690-6696
Number of pages7
JournalApplied Surface Science
Volume253
Issue number16
DOIs
Publication statusPublished - 2007 Jun 15

Keywords

  • LP-DMA
  • Nanodevices
  • Nanoparticles
  • Pulsed laser ablation

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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