Photoluminescence properties of NaLa(WO4)2∶Tb3+ novel green phosphors prepared by the combustion method

摘要：

　　A series of NaLa(WO4)2∶Tb3+ green phosphors have been prepared by a facile combustion method.X-ray powder diffraction (XRD) and photoluminescence were used to characterize the structure and luminescence properties of as-synthesized phosphors,respectively.The XRD results confirm that the as-synthesized phosphors exhibit sheelite-type structure without any impurity phase.The excitation band of the phosphors covers a wide region of 200-300 nm.The as-obtained phosphors emit strong green light centered at 546 nm under ultraviolet light excitation (261 nm).The results show that the optimum temperature is 800 ℃ and the optimum concentration of Th3+-dopant is 50 at%.

关键词： NaLa(WO4)2∶Tb3+ Phosphor Combustion method Luminescence

作者: Xianhua Qian Xipeng Pu Dafeng Zhang Shicai Cui Yanyan Gao

作者单位: School of Materials Science and Engineering,Liaocheng University,Liaocheng 252000,Shandong China School of Architecture and Civil Engineering,Liaocheng University,Liaocheng,252000,Shandong China

会议类型: 国际会议

会议名称: the international conference on Frontier of Nanoscience and Technology (2011纳米科学与技术国际会议(ICFNST 2011))

会议地点: 大理

会议语种:英文

页码: 513-517

在线出版日期: 2011-08-18（万方平台首次上网日期，不代表论文的发表时间）