DocumentCode :
1329756
Title :
A Facile Fabrication of Fe 
O 
/ZnO Core-Shell Submicron Particles With Controlled Size
Author :
Kyong-Hoon Choi ; Weon-Sik Chae ; Eun-Mee Kim ; Jong-Ho Jun ; Jong-Hyung Jung ; Yong-Rok Kim ; Jin-Seung Jung
Author_Institution :
Dept. of Chem., Yonsei Univ., Seoul, South Korea
Volume :
47
Issue :
10
fYear :
2011
Firstpage :
3369
Lastpage :
3372
Abstract :
Monodispersed superparamagnetic magnetite submicron particles were synthesized by using a one-step solvothermal method. Increasing the volume ratio of ethylene glycol/diethylene glycol (EG/DEG) shows a gradual increase in the size of primary nanograin and secondary Fe3O4 submicroparticles. To induce the photo-magnetic functionality, we have successfully synthesized the multifunctional core-shell (Fe3O4/ZnO) submicron particles by atomic layer deposition (ALD) method. Microstructure and magnetic properties of the multifunctional core/shell submicron particles are investigated by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM), and photoluminescence spectroscopy.
Keywords :
II-VI semiconductors; atomic layer deposition; crystal microstructure; iron compounds; magnetic particles; photoluminescence; scanning electron microscopy; superparamagnetism; transmission electron microscopy; wide band gap semiconductors; zinc compounds; Fe3O4-ZnO; atomic layer deposition; controlled size; core-shell submicron particles; ethylene glycol/diethylene glycol; facile fabrication; field emission scanning electron microscopy; magnetic properties; microstructure; monodispersed superparamagnetic magnetite submicron particles; one-step solvothermal method; photo-magnetic functionality; photoluminescence spectroscopy; primary nanograin; transmission electron microscopy; vibrating sample magnetometry; Iron; Magnetic cores; Magnetic hysteresis; Magnetic resonance imaging; Magnetometers; Saturation magnetization; Zinc oxide; Atomic layer deposition; ZnO; magnetic submicron particle; photomagnetic core/shell particle; solvothermal method;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2011.2152375
Filename :
6027686
Link To Document :
