Fabrication of gold nanoparticles in intense optical field by femtosecond laser irradiation of aqueous solution

Takahiro Nakamura, Yuzuru Mochidzuki, Shunichi Sato

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

Gold particles were fabricated by the high-intensity femtosecond laser irradiation of gold (III) chloride trihydrate (HAuCl4) aqueous solution. The structure and size distribution of the prepared particles were evaluated by transmission electron microscopy. The configuration of the gold particles varied with the concentration of the HAuCl4 aqueous solution. The mean particle size and size distribution were changed by the addition of polyvinylpyrrolidone (PVP), which acted as a dispersant, and monodispersed gold nanoparticles with a diameter of about 3 nm were successfully fabricated. The formation process of the nanoparticles is discussed in terms of the optical decomposition of molecules in the highly intense optical field generated by femtosecond laser irradiation.

Original languageEnglish
Pages (from-to)968-974
Number of pages7
JournalJournal of Materials Research
Volume23
Issue number4
DOIs
Publication statusPublished - 2008 Apr 1

ASJC Scopus subject areas

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

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