Synthesis and Luminescent Properties of Na5LaxM1-x(WO4)4 (M =Eu,Sm,Bi) Red Phosphors for WLED

摘要：

　　A series of Na5La(WO4)4∶M3+ (M =Eu,Sm,Bi) phosphors have been synthesized successfully by the solid-state reactions.The corresponding crystal structure and lattice parameters were refined by the Rietveld method,and the impact of doped metal ions upon the structure were also studied.The photoluminescent properties were investigated at room temperature.All the samples were observed a strong red emission under 395nm or 465 nm excitation,and the CIE chromaticity coordinates (x =0.67,y =0.33) was found to be close to the National Television Standard Committee (NTSC) standard red,implying high color purity.This kind of tungstate phosphor is a promising candidate as the red phosphor for white light-emitting diodes (WLED).

关键词： Tungstate phosphor White Light-emitting diodes Structure refinement

作者: Decai Huang Youfu Zhou Wentao Xu Zhangfu Yang Maochun Hong Yuanhua Lin Jianchang Yu

作者单位: Key Laboratory of Optoelectronic Materials Chemistry and Physics,Fujian Institute of Research on the Key Laboratory of Optoelectronic Materials Chemistry and Physics,Fujian Institute of Research on the State Key Laboratory of New Ceramic and Fine Processing,Tsinghua University,Beijing 100084,P.R.China College of Materials Science and Engineering,Fuzhou University,Fuzhou 350108,P.R.China

会议类型: 国际会议

会议名称: 2012 Workshop on Synthesis, Characterization and Applications of Inorganic Powders (2012年全国无机粉体制备与表征技术研讨会)

会议地点: 桂林

会议语种:英文

页码: 244-247

在线出版日期: 2012-07-16（万方平台首次上网日期，不代表论文的发表时间）