中国物理B ›› 2014, Vol. 23 ›› Issue (2): 28505-028505.doi: 10.1088/1674-1056/23/2/028505
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
姜庭明a, 余雪a b, 徐旭辉a b, 周大成a b, 余红玲a, 杨鹏辉a, 邱建备a b
Jiang Ting-Ming (姜庭明)a, Yu Xue (余雪)a b, Xu Xu-Hui (徐旭辉)a b, Zhou Da-Cheng (周大成)a b, Yu Hong-Ling (余红玲)a, Yang Peng-Hui (杨鹏辉)a, Qiu Jian-Bei (邱建备)a b
摘要: A series of K3Gd1-x-y(PO4)2:xCe3+, yTb3+ phosphors are synthesized by the solid-sate reaction method. X-ray diffraction and photoluminescence spectra are utilized to characterize the structures and luminescence properties of the as-synthesized phosphors. Co-doping of Ce3+ enhances the emission intensity of Tb3+ greatly through an efficient energy transfer process from Ce3+ to Tb3+. The energy transfer is confirmed by photoluminescence spectra and decay time curves analysis. The efficiency and mechanism of energy transfer are investigated carefully. Moreover, due to the non-concentration quenching property of K3Tb(PO4)2, the photoluminescence spectra of K3Tb1-x(PO4)2:xCe3+ are studied and the results show that when x=0.11 the strongest Tb3+ green emission can be realized.
中图分类号: (Light-emitting devices)