THE EFFECT OF SYNTHESIS PARAMETERS ON LUMINESCENCE PROPERTIES OF Ca-α-Sialon:Eu2+

被引：0
|
作者：
Michalik, D. [1 ]
Sopicka-Lizer, M. [1 ]
Pawlik, T. [1 ]
Lisiecki, R. [2 ]
机构：
[1] Silesian Tech Univ, PL-40019 Katowice, Poland
[2] Inst Low Temperatures & Struct Res, PL-50422 Wroclaw, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2013年 / 58卷 / 04期
关键词：
phosphor; oxynitride; sialon; WLED; WHITE LEDS; PHOSPHORS; EU;
D O I：
10.2478/amm-2013-0164
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The goal of this study was to investigate influence of the synthesis parameters on the luminescence properties of Ca-alpha-Sialon doped with Eu2+. The compound of Eu0.07Ca0.73Si9.6Al2.4O0.8N15.2 was prepared by the solid state reaction method from the mixture of the relevant oxides, Si3N4 and CaCO3. Synthesis was carried out in the temperature range of 1600-1700 degrees C for 2-8 h in a reduction atmosphere (N-2+CO). The structure and morphology of obtained powders were analyzed by XRD and SEM/EDS methods, respectively. Content of nitrogen/oxygen was also measured. Optical properties were investigated by excitation, emission and reflection spectra. Obtained results show strong influence of synthesis temperature on the phase composition and intensity of emission of Ca-alpha-Sialon:Eu2+ powder compound.
引用
收藏
页码：1309 / 1312
页数：4
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