水热-微波法合成纳米晶长余辉发光材料Y2O2S∶Eu^3＋,Mg,Ti  

Synthesis of Nanocrystalline Y_2O_2S∶Eu^(3+), Mg, Ti Long-lasting Phosphorescent Materials by Hydrothermal-Microwave Method

作　　者：李文宇[1] 刘应亮[1] 艾鹏飞[1] 

机构地区：[1]暨南大学化学系,纳米化学研究所,广州510632

出　　处：《无机化学学报》2008年第5期772-776,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金项目(No.20671042);广东省自然科学基金项目(No.0520055);广州市科技计划引导项目(No.2006Z3-D0141)资助

摘　　要：采用新型水热-微波法合成了纳米晶长余辉发光材料Y_2O_2S∶Eu^(3+),Mg,Ti。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Y_2O_2S∶Eu^(3+),Mg,Ti纳米发光材料为单相,六方晶。透射电子显微镜(TEM)测试表明所制备的Y_2O_2S∶Eu^(3+),Mg,Ti纳米发光材料粒径小,分布集中。激发和发射光谱测试表明Eu^(3+)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。余辉光谱测试表明其余辉颜色为红色,具有良好的余辉效果。Long-lasting phosphorescent materials, nanocrystals Y2O2S：Eu^3＋,Mg,Ti, were prepared by hydrothermal- microwave method. The results of XRD indicated that the nanocrystals Y2O2S：Eu^3＋,Mg,Ti possessed pure phase, hexagonal crystal structure. The results of TEM revealed that the single phase Y2O2S：Eu^3＋,Mg,Ti had small size with narrow distribution. Excitation and Emission spectra showed that Eu^3＋ could be incorporated into yttrium oxysulfides effectively, and had good luminescent Y2O2S：Eu^3＋,Mg,Ti had red afterglow color and good properties. The afterglow spectrum indicated that nanocrystals afterglow effect.

关 键 词：水热-微波合成 硫氧化钇 纳米晶 长余辉发光 

分 类 号：O614.322[理学—无机化学]