Fabrication and placement of a ring structure of nanoparticles by a laser-induced micronanobubble on a gold surface

Sho Fujii, Katsuhiko Kanaizuka, Shoichi Toyabe, Katsuaki Kobayashi, Eiro Muneyuki, Masa Aki Haga

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

We have developed a new fabrication method for a ring structure of assembled nanoparticles on a gold surface by the use of continuous Nd:YAG laser light. A micronanobubble on a gold surface, created by laser local heating, acts as a template for the formation of the ring structure. Both Marangoni convection flow and capillary flow around the micronanobubble are responsible for the driving force to assemble nanoparticles such as CdSe Q-dots into the ring structure from the solution. Because a single micronanobubble was generated by the Nd:YAG laser focusing point, the precise positioning of the ring structure was feasible directly on the gold surface, which makes it possible to fabricate various patterns of rings such as arrays and letters and even a double-ring structure without any photomasks or any templates.

Original languageEnglish
Pages (from-to)8605-8610
Number of pages6
JournalLangmuir
Volume27
Issue number14
DOIs
Publication statusPublished - 2011 Jul 19
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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