LUMINESCENCE OF EU2+-ACTIVATED AND PB2+-ACTIVATED ALKALINE-EARTH OXYHALIDES M4OX6 (M = CA, SR, BA X = CL, BR)

被引：18
|
作者：
SCHIPPER, WJ [1 ]
VROON, ZAEP [1 ]
BLASSE, G [1 ]
SCHLEID, T [1 ]
MEYER, G [1 ]
机构：
[1] UNIV HANOVER,INST ANORGAN CHEM,W-3000 HANNOVER,GERMANY
来源：
CHEMISTRY OF MATERIALS | 1992年 / 4卷 / 03期
关键词：
D O I：
10.1021/cm00021a035
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The luminescence properties of Ba3.96Eu0.04OCl6, Ba3.96EU0.04OBr6, Sr3.96EU0.04OC16, Sr3.96EU0.04OBr6, Ca3.96Eu0.04OCl6, Eu4OCl6, and Eu4OBr6 are reported and discussed. All compositions show an efficient blue emission under UV and X-ray excitation. From the similarity of the luminescence properties of these materials, it is concluded that the luminescence properties of Eu2+ are strongly determined by the oxide ion in the crystal structure. In Eu4OCl6 and Eu4OBr6 no concentration quenching of the luminescence is observed. The luminescence properties of the alkaline-earth oxyhalides doped with lead are also reported. The Pb2+ ion exhibits a blue emission in the strontium oxyhalides. In addition a red emission of unknown nature is observed.
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页码：688 / 692
页数：5
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