作　　者： ; ; ; ; ; ;

机构地区： 暨南大学生命科学技术学院化学系

出　　处： 《无机化学学报》 2009年第10期1753-1757,共5页

摘　　要： 以单分散的碳球为硬模板,采用均匀共沉淀法合成了Y2O2S∶Eu3+空心微球。通过XRD、SEM、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+空心微球为单相,六方晶。扫描电子显微镜(SEM)和透射电子显微镜(TEM)测试表明所制备的Y2O2S∶Eu3+空心微球粒径小,分布均匀。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。 Red-emitting phosphors Y2O2S ：Eu^3＋ hollow microspheres were synthesized by monodisperse carbon spheres as hard templates through homogeneous precipitation technique. The products were characterized by the X-ray diffraction （XRD） patterns, scanning electron microscopy （SEM） images, transmission electron microscopy （TEM） images and photoluminescence （PL） spectra. The results of XRD indicated that the Y2O2S：Eu^3＋ possessed pure phase, hexagonal crystal structure. The results of SEM and TEM revealed that the single phase Y2O2S：Eu^3＋ hollow mierospheres had small size and uniform distribution. Excitation and Emission spectrum showed that Eu^3＋ could be incorporated into yttrium oxysulfides effectively and have good luminescent properties.

关 键 词： 均匀沉淀法 硫氧化钇 空心微球 发光性能

领　　域： [理学] [理学] [理学] [理学]