Synthesis and Luminescent Properties of Ce3+, Tb3+ Co-Doped Zn4B6O13
来源期刊：JOURNAL OF RARE EARTHS2002年第6期
论文作者：李善兰 王思宏 常树岚 阚玉和
Key words：rare earths; Zn4B6O13:Ce3+,Tb3+; synthesis; luminescent properties;
Abstract: Green-photoluminescence material Zn4B6O13: Ce3+, Tb3+ was first synthesized by spread method of high temperature and solid state reaction, which is cubic crystal system with lattice parameters: a0=0.7472 nm,V=0.4172 nm3, and structural properties are investigated by XRD. The excitation and emission band of Ce3+ ion single-doped in Zn4B6O13 transfer longer spectra 2.38～4.94 kk than in other matrices. Emission band of Ce3+ ion better overlaps with the 7F6→5G2,5D1,5H7 absorption band of Tb3+. It shows that emission of Tb3+ ion is sensitized by Ce3+. In Zn4B6O13∶Ce3+, Tb3+, it is due to the energy transfer mechanism, resonance transfer of electric multipolar interaction of the dipole-dipole between Ce3+→Ce3+ and Ce3+→Tb3+. The color coordinates of Zn4B6O13: x=0.281, y=0.619. The mean diameter of the particles is 0.23 μm.
李善兰1，王思宏1，常树岚1，阚玉和1
(1.Department of Chemistry, Science and Engineering College, Yanbian University, Yanji 133002, China)
Abstract:Green-photoluminescence material Zn4B6O13: Ce3+, Tb3+ was first synthesized by spread method of high temperature and solid state reaction, which is cubic crystal system with lattice parameters: a0=0.7472 nm,V=0.4172 nm3, and structural properties are investigated by XRD. The excitation and emission band of Ce3+ ion single-doped in Zn4B6O13 transfer longer spectra 2.38～4.94 kk than in other matrices. Emission band of Ce3+ ion better overlaps with the 7F6→5G2,5D1,5H7 absorption band of Tb3+. It shows that emission of Tb3+ ion is sensitized by Ce3+. In Zn4B6O13∶Ce3+, Tb3+, it is due to the energy transfer mechanism, resonance transfer of electric multipolar interaction of the dipole-dipole between Ce3+→Ce3+ and Ce3+→Tb3+. The color coordinates of Zn4B6O13: x=0.281, y=0.619. The mean diameter of the particles is 0.23 μm.
Key words:rare earths; Zn4B6O13:Ce3+,Tb3+; synthesis; luminescent properties;
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