Journal
CERAMICS INTERNATIONAL
Volume 47, Issue 12, Pages 16450-16459Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2021.01.150
Keywords
Tb3+; Gd3+; li plus tri-doping; Energy transfer; Magnetic susceptibility; Luminescence
Categories
Funding
- Jilin Provincial Department Education [JJKH20200758KJ, JJKH20200761KJ]
- [61409220309]
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By doping Li+ ions, the luminous intensity of green light emitted by CeF3:Tb, Gd nanoparticles can be enhanced, showing potential applications in fields such as biological imaging, solid state lighting, and magnetic biological separation.
In this study, hydrothermal synthesis of CeF3: Tb, Gd nanoparticles doped with Li+ alkali metal ions were demonstrated using introduction of Li+ ions through LiNO3 nitrate. These nanoparticles have dual properties of magnetic fluorescence. X-ray diffraction, Fourier transform infrared spectrometer, XPS and photoluminescence spectra, and vibrating sample magnetometry were used to characterize structural properties, surface functional groups, fluorescence, and magnetic properties of these particles. Results show that CeF3: Tb, Gd nanoparticles exhibit bright green light emission under excitation at 258 nm and 378 nm ultraviolet band. Through the modification of Li+ ions, luminous intensity of green light is further improved. Energy transfer between rare earth ions was investigated via photoluminescence spectroscopy. This work demonstrates potential applications of Li doped CeF3: Tb, Gd nanoparticles as photomagnetic dual-functional materials in fields of biological imaging, solid state lighting, and magnetic biological separation.
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