| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5402496 | Journal of Luminescence | 2010 | 6 Pages |
Abstract
Spherical SiO2 particles have been coated with Zn2SiO4:Eu3+ phosphor layers by a Pechini sol-gel process. The microstructure and luminescent properties of the obtained Zn2SiO4:Eu3+@SiO2 particles were well characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), photoluminescence (PL) spectra, and lifetime. The results demonstrate that the Zn2SiO4:Eu3+@SiO2 particles, which have regular and uniform spherical morphology, emitted an intensive red light emission at 613Â nm under excitation at 395Â nm. Besides, the effects of the Eu3+ concentration, annealing temperature and charge compensators of Li+ ions on the PL emission intensities were investigated in detail.
Keywords
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Yang Wu, Yongsheng Wang, Dawei He, Ming Fu, Zhenmin Chen, Yue Li,