A novel blue-purple Ce3+ doped whitlockite phosphor:Synthesis,crystal structure,and photoluminescence properties

• 作者: Yuli Yuan Haoran Lin Jing'ao Cao Qingfeng Guo Fei Xu Libing Liao Lefu Mei
• 来源期刊: 稀土学报（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: SPECTROSCOPY, LUMINESCENCE AND PHOSPHORS
• 页码范围: 621-626
• 页数: 6页
• 语种: 英文

摘要

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 spec-troscopy (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.