Luminescence Characteristics of Ba0.5Sr0.5TiO3∶Prx,Aly Powders Synthesized by Citrate-Nitride Combustion Process

摘要：

　　Ba0.5Sr0.5TiO3∶Pr powders co-doped with and without Al were synthesized by citrate-nitride combustion process.To investigate the effect and mechanism of Al dopant,samples with various Al3+ and Pr3+ content were prepared.The excitation and emission spectra were detected.Enhanced red emission around 613 nm was obtained by Al addition.Moreover,an emission at 491 nm was observed.Substitute situation of Pr3+ ions in the lattice was discussed.And the mechanism of energy transition was explained by the model of an intermediate charge transfer state.

关键词： Barium strontium titanate Luminescence Pr doping Enhancement

作者: Dao Yu Wei He Qingfeng Liu Hongmei Zhong Qian Liu

作者单位: State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China

会议类型: 国际会议

会议名称: The 6th Cross-Strait Conference on Advanced Engineering Materials (第六届海峡两岸工程材料研讨会)

会议地点: 南京

会议语种:英文

页码: 114-120

在线出版日期: 2011-11-08（万方平台首次上网日期，不代表论文的发表时间）