Y_2O_3-SiO_2∶Eu^(3+),Bi^(3+)荧光材料的结构及性能研究  

Studies on Structure and Properties of the Phosphor Material Y_2O_3SiO_2∶Eu^(3+),Bi^(3+)

作　　者：彭绍琴[1] 李越湘[1] 刘光华[1] 

机构地区：[1]南昌大学化学与材料科学学院,江西南昌330047

出　　处：《稀土》2001年第5期66-67,72,共3页Chinese Rare Earths

基　　金：南昌大学基础理论基金资助

摘　　要：用溶胶—凝胶法 (Sol- gel法 )低温合成了 Y2 O3- Si O2 ∶ Eu3+ ,Bi3+红色发光粉。 X射线实验研究发现 ,85 0℃时 ,样品晶体结构为 Y2 Si O5,属单斜晶系 (a=9.0 12 ,b=0 .979,c=6 .6 30 ) ,空间点群为 PI1 /C;SEM实验显示发光体为不规则片层结构 ;粒度分析表明 :发光体粒度分布均匀 ,平均粒度为 0 .79μm;T≥ 6 0 0℃时 。Red-emitting phosphor Y 2O 3 SiO 2∶Eu 3+ ,Bi 3+ was synthesized by sol-gel method at lower temperature.The XRD pattern shows that the composition of the host is Y 2SiO 5 which is monoclinic form,and its space group is P I 1/C .The phosphor shape which is irregular layer structure was determined by SEM.The distribution of particle size of phosphor is narrow and the mean particle size is 0.79μm.when T≥600℃,the,quenching of temperature appears

关 键 词：溶胶-凝胶法 Y2O3-SiO2:Eu^3+ Bi^3+ 荧光体 结构 性能 红色发光粉 三氧化二钇 二氧化硅 铕 铋 掺杂 

分 类 号：TN104.3[电子电信—物理电子学]