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The effect of laser energy on the preparation of iron oxide by a pulsed laser ablation in ethanol

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2012, 22(3), pp.134-138
  • DOI : 10.6111/JKCGCT.2012.22.3.134
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

P. Maneeratanasarn 1 T.V. Khai 1 Bonggeun Choi 1 Kwang Bo Shim 1

1한양대학교

Accredited

ABSTRACT

Recently the preparation magnetic nanoparticles by a pulsed laser ablation in liquid has gained much attention because it is easy to control experimental parameters. Iron oxide magnetic nanoparticles have been prepared by a pulsed laser ablation of α-Fe2O3 target in ethanol at different magnitude of laser energy of 1, 20, 40 and 80 mJ/pulse. It revealed that particle size increases with increasing laser energy. It could be concluded that 40 mJ/pulse is an optimum laser energy for the preparation of iron oxide nanoparticles with uniform size distribution. The nanoparticles are homogeneously dispersed in ethanol and their stability maintained for several months.

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