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

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

    Research output: Contribution to journalArticlepeer-review

    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. © 2003 Elsevier B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)169-175
    Number of pages6
    JournalApplied Surface Science
    Volume228
    Issue number1-4
    DOIs
    Publication statusPublished - 30 Apr 2004

    Keywords

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

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