Spherical YAG∶Ce~(3 ) Phosphor Particles Prepared by Spray Pyrolysis

YAG∶Ce3 phosphor is regarded as the key mate-rial for the white LEDapplication ,its quality contrib-utes to the properties of white LEDremarkably ,suchas luminance intensity , working life ,etc . The mainsynthetical methods of YAG∶Ce3 phosphor include…     

BaMgAl10O17:Eu蓝色荧光粉的研究进展

概述了Eu2 激活的钡镁多铝酸盐(BaMgAl10O17:Eu2 ,BAM:Eu)蓝色荧光粉在等离子显示领域中的研究现状.介绍了BAM的晶体结构,并通过对BAM发射光谱的高斯函数的拟合说明了Eu2 可能存在的几种格位.评述了目前制备BAM的典型方法,分析了引起BAM光衰的基本原因,并提出了改进措施.     

Spherical YAG：Ce^3＋ Phosphor Particles Prepared by Spray Pyrolysis

Spherical YAG：Ce^3＋ phosphor particles with narrow size distribution were prepared by spray pyrolysis. The effects of the concentration of solution, the flow rate of cartier gas and the annexing temperature on the phosphor morphology were studied. The productivity of precursor particles shows a trend of drop after rising with the increase of concentration Raising the flow rate of nitrogen can improve the productivity of the precursor particles. Phosphor prepared by spray pyrolysis has obviously higher emission intensity than that synthesized by solid state reaction, spray pyrolysis makes Ce^3＋ ions well distributed in the crystal lattice as the luminescent centers, and phosphor particles have regular sphericity and narrow size distribution.     

BaMgAl_(10)O_(17)∶Eu蓝色荧光粉的研究进展

概述了Eu2+激活的钡镁多铝酸盐(BaMgAl10O17∶Eu2+,BAM∶Eu)蓝色荧光粉在等离子显示领域中的研究现状。介绍了BAM的晶体结构,并通过对BAM发射光谱的高斯函数的拟合说明了Eu2+可能存在的几种格位。评述了目前制备BAM的典型方法,分析了引起BAM光衰的基本原因,并提出了改进措施。