CaNb_2O_6:Bi^(3+)体系荧光粉的制备及荧光性能研究  

Synthesis and photoluminescence properties of CaNb_2O_6:Bi^(3+) phosphor system

作　　者：唐峰[1] 宋超[1] 殷倩倩[1] 彭子飞[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《应用化工》2012年第5期867-870,共4页Applied Chemical Industry

摘　　要：采用高温固相法合成了CaNb2O6∶Bi3+以及K+,Na+,Li+掺杂CaNb2O6∶Bi3+荧光粉,并用荧光光谱、XRD、场发射扫描电镜分析了材料的结构以及发光性能和机理。相对于纯CaNb2O6,Bi3+以及K+、Na+的引入极大的提升了荧光粉的发光强度,发光效果最好的材料为CaNb2O6∶1%Bi3+,15%K+。The CaNb2O6 ∶ Bi3＋ and CaNb2O6 ∶ Bi3＋,K＋ or Na＋ or Li＋ phosphors were synthesized through solid-state reactions.Their photoluminescence（PL） properties were investigated and compared with pure CaNb2O6.There was a large luminescence enhancement with adding Bi3＋ and especially as increasing K＋ and Na＋ concentration.Characterizations by means of fluorescence spectrophotometer prove that the synthesized products emit blue-white light.CaNb2O6 ∶ 1%Bi3＋,15%K＋ exhibits the highest PL efficiency in all synthesized materials.

关 键 词：铌酸钙 光致发光 荧光粉 

分 类 号：TQ132.3[化学工程—无机化工]