Monosized core-shell Fe 3O 4(Fe)/Au multifunctional nanocrystals

Hong Ling Liu; Jun Hua Wu; Ji Hyun Min; Ju Hun Lee; Young-geun Kim

doi:10.1166/jnn.2009.C018

Monosized core-shell Fe ₃O ₄(Fe)/Au multifunctional nanocrystals

Hong Ling Liu, Jun Hua Wu, Ji Hyun Min, Ju Hun Lee, Young-geun Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

21 Citations (Scopus)

Abstract

We have synthesized highly crystalline, monosized Fe ₃O ₄(Fe)/Au magnetic-optic multifunctional nanocrystals using a modified polyol process. The formation of the core-shell structure was achieved in two consecutive steps, seeding the Fe ₃O ₄(Fe) core followed by coating the gold shell. The characterization demonstrates the core-shell nanostructure and provides particle size and distribution of the nanocrystals. The spectroscopic analysis gives three Fe oxidation states (Fe ⁰, Fe ⁺² and Fe ⁺³) in the core and the surface plasmon characteristic of the Au nanoshell, while the magnetic measurements show excellent susceptibility of the nanocrystals.

Original language	English
Pages (from-to)	754-758
Number of pages	5
Journal	Journal of Nanoscience and Nanotechnology
Volume	9
Issue number	2
DOIs	https://doi.org/10.1166/jnn.2009.C018
Publication status	Published - 2009 Feb 1

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Keywords

Core-Shell
Magnetic
Multifunctional
Nanoparticles
Optical

ASJC Scopus subject areas

Condensed Matter Physics
Chemistry(all)
Materials Science(all)
Bioengineering
Biomedical Engineering

Cite this

Liu, H. L., Wu, J. H., Min, J. H., Lee, J. H., & Kim, Y. (2009). Monosized core-shell Fe ₃O ₄(Fe)/Au multifunctional nanocrystals. Journal of Nanoscience and Nanotechnology, 9(2), 754-758. https://doi.org/10.1166/jnn.2009.C018

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10.1166/jnn.2009.C018