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 language | English |
|---|---|
| Pages (from-to) | 60-64 |
| Number of pages | 5 |
| Journal | Journal of Alloys and Compounds |
| Volume | 537 |
| DOIs | |
| Publication status | Published - 2012 Oct 5 |
Bibliographical note
Funding Information:This work was supported in part by the National Natural Science Foundation of China (No. 51172064), the Scientific and Technological Development Projects, Science and Technology Department of Henan Province, China (No. 112300410011), the Pioneer Research Center Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology, South Korea (No. 2012-0001067) and by the Seoul R&BD Program (No. 10920), South Korea. J.H. Min acknowledges the financial support by Korea University.
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