1. Relative Spectral Power Distribution and Emission Color Coordinates of Ce3+and Eu2+Doped Calcium Magnesium Chlorosilicate System
- Author
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林海 Lin Hai, 王木 Wang Mu, 赵昕 Zhao Xin, 李长敏 Li Chang-min, 刘文华 Liu Wen-hua, and 张竞辉 Zhang Jing-hui
- Subjects
Diffraction ,Radiation ,Materials science ,Spectral power distribution ,business.industry ,Calibration curve ,Doping ,Analytical chemistry ,Phosphor ,Crystal structure ,Cubic crystal system ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,Optics ,Luminescence ,business - Abstract
A series of Ce3+ and Eu2+ doped Ca8Mg(SiO4)4Cl2 powder were synthesized by high-temperature solid-state reaction.The crystal structure was investigated by X-ray diffraction(XRD) and the fluorescence spectra were also recorded and analyzed.The relative spectral power distribution was obtained by spectral power calibration curve,and the emission color coordinates of samples were calculated and characterized.The XRD spectrum indicate that the phosphor is Ca8Mg(SiO4)4Cl2 with face centered cubic lattice.Ce3+ and Eu2+ doped Ca8Mg(SiO4)4Cl2 samples present purplish-blue and green colors under the excitation of ultraviolet radiation,and the corresponding color coordinates are(0.157 3,0.052 8) and(0.154 0,0.466 3),respectively.In Ce3+/Eu2+ codoped Ca8Mg(SiO4)4Cl2 powder,the introduction of Ce3+ changes the luminescent color obviously,and with the increasing of concentration Ce3+,the color coordinates shift to the greenish blue color region.
- Published
- 2011