A convenient way to prepare magnetic colloids by direct Nd:YAG laser ablation

G. X. Chen, M. H. Hong, B. Lan, Z. B. Wang, Y. F. Lu, T. C. Chong

Research output: Contribution to journalArticle

60 Scopus citations

Abstract

Magnetic colloids with nanoparticles inside have been successfully fabricated by laser ablation of a cobalt target immersed in solutions, using an Nd:YAG laser at wavelengths of 532 and 1064nm. The liquid environment allows formation of the colloids with nanoparticles in uniform particle diameters. Influences of the laser wavelengths and different solutions on efficiency of particle formation were studied. The magnetic properties of the cobalt nanoparticles inside the colloids generated were also investigated. Using proper parameters, this method provides a convenient way for fabricating magnetic fluid as well as metal nanoparticles.

Original languageEnglish (US)
Pages (from-to)169-175
Number of pages7
JournalApplied Surface Science
Volume228
Issue number1-4
DOIs
StatePublished - Apr 30 2004

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Keywords

  • Colloids
  • Nanofabrication
  • Nanoparticles
  • UV-Vis absorption spectra

ASJC Scopus subject areas

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

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