Synthesis and Luminescent Properties of Pr3+ Activated KNbO3 Phosphors by sol-gel Combustion Process

摘要：

　　Praseodymium doped KNbO3 (KNbO3:Pr) phosphors were synthesized by a facile sol-gel combustion method.Phase evolution, particle size and luminescent properties of the powders synthesized at various temperatures were investigated.Single-phase KNbO3:Pr nanoscale particles were obtained at 600℃ by directly crystallizing from amorphous precursors.The particle size of KNbO3:Pr powders can be well controlled by varying the heat treatment temperature.Under the excitation of 450 nm, KNbO3:Pr phosphors showed the well-known Pr3+ emissions associated with the 4f inter-level electronic transitions in Pr3+ ions.

关键词： KNbO3:Pr Sol-gel combustion process Luminescence

作者: Jun-ji Zhang Hui Zhou Ji-shi Chen Ting Tang Yuan-zheng Hao

作者单位: College of Material Science and Engineering, Dalian Jiaotong University, Dalian, 116028, P R China

会议类型: 国际会议

会议名称: The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 783-786

在线出版日期: 2013-08-23（万方平台首次上网日期，不代表论文的发表时间）