Effect of Dopant Concentration on the Phase Composition and Luminescence Properties of Eu2+- and Ce3+-Doped AlONs

被引：14
作者：
Akhmadullina, N. S. [1 ]
Lysenkov, A. S. [1 ]
Ashmarin, A. A. [1 ]
Kargin, Yu. F. [1 ]
Ishchenko, A. V. [2 ]
Yagodin, V. V. [2 ]
Shul'gin, B. V. [2 ]
机构：
[1] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119991, Russia
[2] Yeltsin Fed Univ, Ekaterinburg 620002, Russia
来源：
INORGANIC MATERIALS | 2015年 / 51卷 / 05期
关键词：
ALUMINUM OXYNITRIDE; ENERGY-TRANSFER; PHOTOLUMINESCENCE; EMISSION; CATHODOLUMINESCENCE; NITRIDATION; REDUCTION; MECHANISM; PHOSPHORS; FILMS;
D O I：
10.1134/S0020168515050015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Herein we report the synthesis of aluminum oxynitride (Al5O6N) doped with Eu2+ and Ce3+ and examine the effects of the dopant concentration and the nature of the rare-earth-containing precursor (europium and cerium oxides, Eu(acac)(3), and Ce(acac)(3)) on its properties. At dopant concentrations above the solubility limit of rare-earth aluminates (EuAl12O19 and CeAl11O18) in aluminum oxynitride, we observed the formation of aluminum nitride and aluminum oxide (alpha-Al2O3) as individual phases. The concentration of the latter phase was higher when the rare-earth oxides were used. The emission intensity in the cathodoluminescence spectra of the samples was shown to have a maximum at Eu2+ and Ce3+ concentrations from 0.1 to 0.5 at %. Concentration quenching of luminescence was observed.
引用
收藏
页码：473 / 481
页数：9
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