A novel blue-purple Ce~(3+) doped whitlockite phosphor:Synthesis,crystal structure,and photoluminescence properties |
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| Authors: | Yuli Yuan Haoran Lin Jing'ao Cao Qingfeng Guo Fei Xu Libing Liao Lefu Mei |
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| Affiliation: | 1. School of Gemology, China University of Geosciences, Beijing 100083, China;2. Jewelry and Mineral Materials Laboratory of Experimental Teaching Demonstration Center, Beijing 100083, China;3. School of Information Engineering, China University of Geosciences, Beijing 100083, China;4. Academy of Arts & Design, Tsinghua University, Beijing 100084, China;5. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China |
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| Abstract: | At present, the rare earth (RE) ions doped phosphors have attracted more and more attention because of their excellent properties. In this paper, a series of novel blue-purple β-Ca3(PO4)2:Ce3+ phosphors were synthesized by a high temperature solid phase method. The X-ray diffraction (XRD), infrared spectrum, energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), photoluminescence excitation and emission spectra were used to investigate the crystal structure, composition and the luminescent properties of the resulting samples. The phosphor shows a strong absorption in the ultraviolet band. Under the excitation of 269 nm, the phosphor emits a strong purple fluorescence ranging from 360 to 520 nm. When Ce3+ doping content is 0.07 mol, the strongest luminescence intensity is reached, and the concentration quenching mechanism is dipole-dipole (d-d) interaction for Ce3+ based on Dexter theory. |
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| Keywords: | Whitlockite Phosphor Rare Earths |
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