Synthesis of Y2O2(CN2) and luminescence properties of Y2O2(CN2):Eu

被引：40
|
作者：
Sindlingera, Joerg
Glaser, Jochen
Bettentrup, Helga
Juestel, Thomas
Meyer, H. -Juergen
机构：
[1] Univ Tubingen, Inst Anorgan Chem, Abt Festkorperchem & Theoret Anorgan Chem, D-72076 Tubingen, Germany
[2] Fachhsch Munster, Fachbereich Chemieingenieurwesen, Munster, Germany
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2007年 / 633卷 / 10期
关键词：
yttrium; polytypism; crystal structure; europium; luminescence;
D O I：
10.1002/zaac.200700150
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Crystalline powders of the new compound Y2O2(CN2) were prepared by solid state reactions from different mixtures of YCI3/YOCl/Y2O3 and Li-2(CN2) at temperatures between 620 degrees C and 650 degrees C. Structure refinements based on X-ray powder diffraction revealed that trigonal Y2O2(CN2) crystallizes with a structure that is closely related to that Of Y2O2S, whereas linear N-C-N units replace sulphur atoms in Y2O2S- In addition, a hexagonal polytype Of Y2O2(CN2,) was obtained in which a different stacking sequence of yttrium atoms creates a doubling of the c-axis. Europium-doped samples Of Y2O2(CN2) were prepared and the luminescence properties Of Y2O2(CN2):Eu are presented.
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收藏
页码：1686 / 1690
页数：5
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