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 |
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Pages (from-to) | 754-758 |
Number of pages | 5 |
Journal | Journal of Nanoscience and Nanotechnology |
Volume | 9 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2009 Feb |
Keywords
- Core-Shell
- Magnetic
- Multifunctional
- Nanoparticles
- Optical
ASJC Scopus subject areas
- Bioengineering
- Chemistry(all)
- Biomedical Engineering
- Materials Science(all)
- Condensed Matter Physics