自蔓延高温合成法制备白光发光二极管用赛隆陶瓷荧光粉  

PREPARATION OF SIALON CERAMIC PHOSPHOR FOR WHITE LIGHT EMITTING DIODE BY THE SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS METHOD

作　　者：崔猛[1] 李江涛[1] 杨术亮 杜吉胜 

机构地区：[1]中国科学院理化技术研究所 [2]辽宁佳益五金矿产有限公司,辽宁大连116001

出　　处：《硅酸盐学报》2008年第A01期54-57,共4页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(50372074)资助项目。

摘　　要：通过自蔓延高温合成法制备了Eu离子掺杂的Ca-α-SiAlON和Y-α-SiAlON陶瓷荧光粉。用X射线衍射分析荧光粉的相结构。用扫描电子显微镜观察荧光粉的微观形貌。用荧光分光光度计测试荧光粉的发光性能。研究了Eu,Ca和Y离子浓度对荧光粉荧光波长的影响。结果表明:荧光粉平均晶粒直径小于5μm,呈黄绿色,具有稳定的荧光性能。激发光为蓝光或近紫外光,发射光为绿光或黄光,与白光发光二极管对荧光粉的要求相一致。The Eu ion doped Ca-α-SiAlON and Y-α-SiAlON ceramic phosphor were prepared using the self-propagating high-temperature synthesis method. The phase of the phosphor was analyzed by X-ray diffraction, the microstructure was observed by scanning electron microscope and the luminescence property was tested by fluorescence spectrophotometer. The effects of the Eu, Ca and Y ion concentrations on the fluorescence wavelength of the phosphor were investigated. The results show that the average grain diameter of the phosphor is less than 5 μm, the color is yellow-green and the fluorescence property is stable. The excitation light of the phosphor is blue or near-violet, and the emission light is green or yellow, which is consistent with the need for phosphor of white light emitting diodes.

关 键 词：荧光粉 塞隆 发光二极管 自蔓延高温合成 稀土 

分 类 号：TB321[一般工业技术—材料科学与工程]