The Study on the Synthesis and Luminescent Properties of the Phosphor La2O3∶ Dy3+

摘要：

　　In this paper,the phosphor La2O3∶ Dy3+ was synthesized by a gel-sel method and its structure,morphology,particle size,Photolurninescence (PL) and Cathodoluminescence (CL)properties were characterized by X-Ray powder diffraction (XRD),scanning electron microscopy (SEM),laser particle size analyzer,Photoluminescence (PL) and Cathodoluminescence (CL) spectra,respectively.The results indicate that the Dy3+ as luminescent centers substituted La3+ ions into the single crystal lattice of La2O3 and located in the sites of C3.The size of particles was nearly spherical with the diameter of about 1 μm.The sample can be 350~500nm light into visible light.Whether Photoluminescence (PL) or Cathodoluminescence (CL),Two emission peaks at about 489 nm (blue) and 575 nm (yellow) were corresponding to 4F9/2-6H15/2 and 4F9/2-6H13/2 transitions with the maximum emission wavelength at about 575 nm.This white phosphor can be applied both in LEDs and in the field emission devices.

关键词： Photoluminescence Cathodoluminescence La2O3∶ Dy3+ phosphor

作者: Weiwei Tang Wenyu Zhao Bin Fan

作者单位: Inner Mongolia University of Science and Technology, Baotou014010,China

会议类型: 国际会议

会议名称: 2nd International Conference on Advanced Materials and Engineering Materials(第二届先进材料与工程材料国际会议)(ICAMEM2012)

会议地点: 北京

会议语种:英文

页码: 297-300

在线出版日期: 2012-12-16（万方平台首次上网日期，不代表论文的发表时间）