MGa2S4:Eu2+(M=Ca、Sr、Ba)和EuGa2S4系列荧光粉的合成和发光性能研究

被引:6
作者
徐剑
张新民
张剑辉
郭崇峰
苏锵
机构
[1] 中山大学化学与化学工程学院
基金
广东省自然科学基金;
关键词
稀土; 硫代镓酸盐; 发光;
D O I
暂无
中图分类号
O48231 [];
学科分类号
摘要
采用高温固相法合成了MGa2S4:Eu2+(M=Ca、Sr、Ba)系列荧光粉,观察到各自的发光;同时观察到EuGa2S4具有发光,发射峰靠近544nm,Eu在其中既是基质离子,也是激活剂离子,并没有出现浓度淬灭现象;并对两种不同碱土离子M,M′(M,M′=Ca、Sr、Ba)混掺对(M0 96-xM′x)Ga2S4:Eu2+0 04发光的影响做了研究,发现混掺可使Eu2+的发射波长在500~553nm之间移动;同时研究了(Sr1-xEux)Ga2S4体系中不同x值对发光的影响,发现随着Eu浓度的逐渐加大,发射峰先出现发光强度的增大,然后出现发射波长的移动。
引用
收藏
页码:49 / 51
页数:3
相关论文
共 8 条
[1]  
Cathodolu_ minescent properties of coated SrGa2 S4 : Eu2+and ZnS: Ag, Cl phosphors for field emission display applications. SOURIAU J_C,JIANG Y D,PENCZEK J,et al. Materials Science and Engineering . 2000
[2]  
Synthesis and properties of green phosphor SrGa2 S4 : Eu2+ for field emission displays by an environmentally clean technique. JIANG Y D,VILLALOBOS G,SCOURIAU J C,et al. Solid State Communications . 2000
[3]  
Vaporization and stability of phases in the SrS_Ga2 S3 system. KAPIAS P,EDWARDS J G. The Journal of Physical Chemistry . 1988
[4]  
Optical characterization of europium and cerium in strontium thiogallate thin films and powers. EICHENAUER L,JAROFKE B,Mertins H C,et al. Physica Status Solidi A Applied Research . 1996
[5]  
Phase diagram of the SrSG a2 S3 system and its application to the single_crystal growth of SrGa2 S4. KOMATSU C,TAKIZAMAT. Journal of Crystal Growth . 2000
[6]  
Luminescence of Eu2+ in strontium and barium thiogallates. DAVOLOS M R,GARCIA A,FORASSIER C,et al. Journal of Solid State Chemistry . 1989
[7]  
Luminescence properties of Eu2+ _activated alkaline earth halolnales. MEIJERINK A,BLASSE G. Journal of Luminescence . 1989
[8]  
Preparation of green_emitting Sr1-x Eux Ga2 S4 phosphors by a solid_state rapid metathesis reaction. SASTRY I S R,BACALSKI C F,MCKITTRICK J. Journal of the Electrochemical Society . 1999