Magnetization-induced enhancement of photoluminescence in core-shell CoFe{sub 2}O{sub 4}@YVO{sub 4}:Eu{sup 3+} composite
- Department of Physics, Zhejiang Normal University, Jinhua 321004 (China)
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004 (China)
- School of Materials Science and Technology, China University of Geosciences, Beijing 100083 (China)
- Department of Physics, Shanghai University of Electric Power, Shanghai 200090 (China)
After the core-shell CoFe{sub 2}O{sub 4}@YVO{sub 4}:Eu{sup 3+} composite synthesized through a facile sol-gel method was magnetized under an external magnetic field of 0.25 T for 4 h, an enhancement of ∼56% in photoluminescence intensity was observed. The remanent magnetization of the CoFe{sub 2}O{sub 4} core increases the intensity of the excited charge transfer transition of VO{sub 4}{sup 3−} group in YVO{sub 4}:Eu{sup 3+} shell, which may enhance the probability related to the Eu{sup 3+} radiative transition {sup 5}D{sub 0}-{sup 7}F{sub 2}, yielding to a high photoluminescence. The obvious remanent-magnetization-induced enhancement in photoluminescence is helpful in developing excellent magnetic/luminescent material for the practical display devices.
- OSTI ID:
- 22258705
- Journal Information:
- Journal of Applied Physics, Vol. 114, Issue 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis and photoluminescence of (Y{sub 0.9−x}La{sub x})Eu{sub 0.1}VO{sub 4} nano-crystal phosphors using a sol–gel method
Fabrication and optical properties of core-shell structured spherical SiO{sub 2}.GdVO{sub 4}:Eu{sup 3+} phosphors via sol-gel process