One-pot synthesis and characterization of bifunctional Au-Fe 3O 4 hybrid core-shell nanoparticles

Hongling Liu, Junhua Wu, Ji Hyun Min, Young Keun Kim

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We report the one-pot synthesis of bifunctional Au-Fe 3O 4 hybrid core-shell nanoparticles by controlled sequential reactions. The core-shell nanostructure of the resultant nanoparticles is identified by XRD and TEM, which is further substantiated by the changes in the corresponding physical and chemical properties. The nanoparticles exhibit a well-shaped absorption band in the visible region with a remarkable red-shifting to ∼592 nm and show clear superparamagnetic behavior at room temperature along with enhanced susceptibility, demonstrating the integration of the optical and magnetic functions of the respective components in one entity. This kind of bifunctional optical-magnetic core-shell nanoparticles could be of interest in interfacial proximity effects due to the unique spatial nanostructure configuration and have potential applications in various areas.

Original languageEnglish
Pages (from-to)60-64
Number of pages5
JournalJournal of Alloys and Compounds
Volume537
DOIs
Publication statusPublished - 2012 Oct 5

Keywords

  • Chemical synthesis
  • Magnetization
  • Nanostructured materials
  • Optical properties
  • Surfaces and interfaces

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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