The Effect of Synthesis Parameters on Luminescence Properties of Ca-α-Sialon:Eu2+

Archives of Metallurgy and Materials

R. Lisiecki¹  M. Sopicka-Lizer²  T. Pawlik²  D. Michalik² 

[1] INSTITUTE OF LOW TEMPERATURE AND STRUCTURE RESEARCH, OKÓLNA 2, 50-422 WROC?AW, POLAND;SILESIAN UNIVERSITY OF TECHNOLOGY, 8 KRASINSKIEGO STR., 40-019 KATOWICE, POLAND

关键词: Keywords : phosphor;    oxynitride;    sialon;    WLED;   

DOI  :  10.2478/amm-2013-0164

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The goal of this study was to investigate influence of the synthesis parameters on the luminescence properties of Ca- α -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°C for 2-8 h in a reduction atmosphere (N2+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- -Sialon:Eu2+ powder compound.

【 授权许可】

Unknown