摘要
采用高温固相法制备了荧光粉ABAlO4:Eu3+(A=Ca,Sr;B=Y,Gd),利用X射线粉末衍射(XRD),荧光光谱对样品的相纯度,激发光谱和发射光谱进行了表征与分析。样品中Eu3+离子的电荷迁移带和f-f跃迁被归属和讨论,激发和发射光谱显示样品能够有效地被紫光397nm激发,呈现典型的红光发射(622nm)。研究表明该荧光粉是一种潜在的白光LED用荧光体转换荧光材料。
A series of phosphors ABA104 ： Eu3＋ （A= Ca, Sr; B= Y, Gd） were synthesized by using a high-tempera- ture solid-state reaction technique, and their phase purity, excitation and emission spectra were investigated. The f-f transi- tions of Eu3＋ in the host lattice were assigned and discussed. The excitation and emission spectra indicated that ABA104： Eu3＋ （A=Ca, Sr; B= Y, Gd） can be effectively excited by violet（397nm）, and exhibited classical red emission. The phosphor can be a potential candidate as an W-convertible phosphor for white light-emitting diodes（LEDs） was suggested.
出处
《化工新型材料》
CAS
CSCD
北大核心
2013年第5期127-129,共3页
New Chemical Materials
基金
河南省教育厅科学技术研究重点项目(12A430021)
郑州轻工业学院博士科研基金(2010BSJJ013)
关键词
高温固相反应
Eu3+
发光
LEDS
high-temperature solid-state reaction, Eu3＋ ,luminescence, LEDs
