(Y_(1-y),Gd_y)_(3-x)Al_5O_(12):Ce_x^(3+)荧光粉的合成与发光性能的研究  

Synthesis and Studies on Luminescent Property of (Y_(1-y),Gd_y)_(3-x)Al_5O_(12):Ce_x^(3+) Phosphors

作　　者：杨英[1] 吴茜[1] 耿秀娟[1] 陈永杰[1] 

机构地区：[1]沈阳化工学院应用化学学院,辽宁沈阳110142

出　　处：《沈阳化工学院学报》2009年第2期114-117,共4页Journal of Shenyang Institute of Chemical Technolgy

摘　　要：用高温固相法在还原气氛下制备掺Gd的YAG:Ce3+荧光粉,并用X射线衍射分析测定(Y1-y,Gdy)2.94A l5O12:Ce0.063+荧光粉的晶体结构,用970CRT荧光分光光度计测定激发光谱和发射光谱.研究Ce3+的不同掺入量对YAG:Ce3+荧光粉的发光性能的影响.结果表明,合成样品的结构属于立方形的钇铝石榴石晶体结构.激发峰位于475 nm处,归属于Ce3+的4 f到5d跃迁,发射峰位于542 nm处,归属于Ce3+的5d到4 f跃迁.The phosphors YAG：Ce^3＋ doped with gadolinium ions was obtained by high temperature solid-state reaction process. XRD patterns, excitation spectra and emission spectra have been determined. The effect of molar ratios of Ce^3＋ on luminescent property of the phosphors YAG： Ce^3＋ have been investigated in details. XRD research indicates that the crystalline phase of the product is cubic yttrium aluminum garnet（YAG）. The excitating peak at 475 nm corresponds to the 4f -5d transition of Ce^3＋. The emitting peak at 542 nm corresponds to the 4f-5d transition of Ce^3＋.

关 键 词：稀土 YAG:Ce3+ 荧光粉 发光性能 

分 类 号：TQ422[化学工程]