中国物理B ›› 2014, Vol. 23 ›› Issue (4): 48106-048106.doi: 10.1088/1674-1056/23/4/048106
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
刘思佳a, 彭同江a, 宋振b, 边柳b, 宋功保a, 刘泉林b
Liu Si-Jia (刘思佳)a, Peng Tong-Jiang (彭同江)a, Song Zhen (宋振)b, Bian Liu (边柳)b, Song Gong-Bao (宋功保)a, Liu Quan-Lin (刘泉林)b
摘要: Trivalent cerium-doped yttrium aluminum garnet (YAG:Ce3+) phosphors are synthesized by solid-state reaction method through using (Y1-xCex)2O3 solid solutions as precursors. Solid solubility limits of Ce3+ replacing Y3+ in Y2O3 and YAG are determined to be 40% and 7.5%, respectively, based on the relationship between the lattice parameter and chemical composition. Using (Y1-xCex)2O3 as precursors we synthesize YAG:Ce3+single phase at 1450℃ and N2 atmosphere. However, under the same conditions using CeO2 there exists a second phase YAlO3 as impurity. The photoluminescence intensity of YAG:Ce3+ increases monotonically with the increase of Ce concentration until it reaches a maximum at solid solubility limits of Ce3+ in YAG.
中图分类号: (Methods of materials synthesis and materials processing)