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Monosized Core-Shell Fe3O4(Fe)/Au Multifunctional Nanocrystals
- Issue Date
- Feb-2009
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Core-Shell; Nanoparticles; Multifunctional; Magnetic; Optical
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.9, no.2, pp 754 - 758
- Pages
- 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 9
- Number
- 2
- Start Page
- 754
- End Page
- 758
- ISSN
- 1533-4880
1533-4899
- Abstract
- We have synthesized highly crystalline, monosized Fe3O4(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 Fe3O4(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.
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Related Researcher
- Kim, Young Keun
- College of Engineering