作　　者： ; ; ; ; ;

机构地区： 暨南大学生命科学技术学院纳米化学研究所

出　　处： 《功能材料》 2010年第6期986-989,共4页

摘　　要： 采用溶剂热-高温固相法,合成了纳米晶Y2O2S∶Eu3+,Mg2+,Ti4+红色长余辉发光材料。通过XRD、TEM、荧光光谱对其进行表征。X射线衍射测试表明所制备的Y2O2S∶Eu3+,Mg2+,Ti4+纳米材料为单相,六方晶。透射电子显微镜(TEM)测试表明所制备的Y2O2S∶Eu3+,Mg2+,Ti4+纳米材料粒径小,分布集中。激发和发射光谱测试表明Eu3+离子能有效地掺入硫氧化钇基质中,并具有良好的发光性能。余辉测试表明其余辉颜色为红色,具有良好的余辉效果。 A red long-lasting phosphorescent materials,nanocrystals Y2O2S∶Eu^3＋,Mg^2＋,Ti^4＋ were prepared by solvothermal-high temperature solid state method.The products were characterized by the X-ray diffraction（XRD） patterns,transmission electron microscopy（TEM） images and photoluminescence（PL） spectra.The results of XRD indicated that the nanocrystals Y2O2S∶Eu^3＋,Mg^2＋,Ti^4＋ possessed pure phase,hexagonal crystal structure.The results of TEM revealed that the single phase Y2O2S∶Eu^3＋,Mg^2＋,Ti^4＋ had small size with narrow distribution.Excitation and Emission spectrum showed that Eu^3＋ could be incorporated into yttrium oxysulfides effectively,and had good luminescent properties.The afterglow test indicated that nanocrystals Y2O2S∶Eu^3＋,Mg^2＋,Ti^4＋ had red afterglow color and good afterglow effect.

关 键 词： 溶剂热 高温固相法 硫氧化钇 纳米晶 长余辉发光

领　　域： [金属学及工艺] [一般工业技术] [金属学及工艺]