Eu^(3+)掺杂Bi_4Si_3O_(12)材料的制备和发光特性(英文)  

Synthesis and Luminescence Properties of Eu^(3+)-doped Bi_4Si_3O_(12)

作　　者：张彦[1] 徐家跃[1] 张婷婷[1] 

机构地区：[1]上海应用技术学院材料科学与工程学院,上海200235

出　　处：《无机材料学报》2011年第12期1341-1344,共4页Journal of Inorganic Materials

基　　金：National Natural Science Foundation of China(50972093);National Key Basic Research Program(2011CB612310);Shang-hai Municipal Education Commission(J51504,09ZZ196,10XD1403800,yyy09005);SIT Research Project on Optical Func-tional Crystals(TDP 2009-03,1020K116001-YJ2009-01)

摘　　要：采用传统的固相合成法制备了Eu3+掺杂的Bi4Si3O12发光材料.使用X射线粉末衍射技术对制备的发光粉体进行了表征.Eu3+掺杂的Bi4Si3O12材料的激发谱表明,在265 nm处强而宽的谱带对应于Eu3+→O2-之间的电荷转移跃迁带.在用紫外光激发的荧光光谱中,Eu3+掺杂的Bi4Si3O12材料在614 nm处有强的红光发射.材料的激发和发射光谱结果表明,Eu3+掺杂的Bi4Si3O12有望做为红色固体发光的候选材料.Eu3＋-doped Bi4Si3O12 phosphors were synthesized by the conventional solid state reaction.X-ray diffraction analysis confirmed the formation of Bi4Si3O12： Eu3＋.The excitation spectra of Eu3＋-doped Bi4Si3O12 show an intense broad band with maximum at 265 nm related to Eu3＋→O2-charge transfer transition.Photoluminescence spectra indicate that the phosphor emits strong red light centered at 614 nm under UV light excitation.Due to high emission intensity and a good excitation profile,the Eu3＋-doped Bi4Si3O12 phosphor may be a promising candidate in solid state lighting applications.

关 键 词：硅酸铋 荧光粉 铕发光 

分 类 号：TQ174[化学工程—陶瓷工业]