广西师范大学学报(自然科学版) ›› 2011, Vol. 29 ›› Issue (3): 33-36.

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BaNb2O6:Eu3+,Bi3+荧光粉的制备及发光性质研究

周立亚, 黄君丽, 莫福旺, 杨梅, 王清   

  1. 广西大学化学化工学院,广西南宁530004
  • 收稿日期:2011-04-22 出版日期:2011-08-20 发布日期:2018-12-03
  • 通讯作者: 周立亚(1975—),女,江西泰和人,广西大学教授,博士。E-mail:zhouliyatf@163.com
  • 基金资助:
    国家自然科学基金资助项目(61066006);广西自然科学基金资助项目(2011GXNSFA018054)

Preparation and Photoluminescence Propertiesof BaNb2O6:Eu3+,Bi3+Red-emitting Phosphor

ZHOU Li-ya, HUANG Jun-li, MO Fu-wang, YANG Mei, WANG Qing   

  1. School of Chemistry and Chemical Engineering,Guangxi University,Nanning Guangxi 530004,China
  • Received:2011-04-22 Online:2011-08-20 Published:2018-12-03

摘要: 采用传统的固相法制备了BaNb2O6:Eu3+荧光粉,对其晶体结构、形貌和发光性质进行了X-射线衍射(XRD)、扫描电镜(SEM)和荧光光谱(PL)表征。结果表明,经1 200 °C烧结后可得到BaNb2O6纯相;BaNb2O6:Eu3+荧光粉的颗粒大小分布较均匀,粒径大约为1~3 μm;Ba1-xNb2O6:Eu3+x荧光粉可以被401 nm近紫外光有效激发,以593 nm处的发射峰为最强峰,对应于Eu3+5D07F1磁偶极跃迁。当掺杂共激活剂Bi3+时,可以增强BaNb2O6:Eu3+荧光粉的发光强度,当Bi3+掺杂摩尔分数为5%时,BaNb2O6:Eu3+荧光粉的发光强度达到最大。

关键词: 发光性质, 荧光粉, 固相反应

Abstract: Rare earth Eu3+-doped BaNb2O6 phosphor wasprepared by solid-state reaction.Structure and photoluminescence properties ofthe phosphors were characterized by X-ray diffraction (XRD),SEM and fluorescence spectrophotometer.XRD results showed that the pure phase of BaNb2O6 couldbe available after being fired at 1 200 °C.The particles have a slight agglomerate phenomenon and flake-like shape with the diameter of about 1~3 μm.Ba1-xNb2O6:Eu3+x phosphors could be effectively excited by the near UV irridiation (401 nm) and emit orange light at 593 nm due to the magnetic dipole 5D07F1 transitions on Eu3+,which indicated that Eu3+occupied the symmetry sites in the BaNb2O6 host lattice.The effect of the co-activator Bi3+ on the PL of the BaNb2O6:Eu3+ phosphor was studied.The addition of the co-activator Bi3+ increased the PL intensity ofthe BaNb2O6:Eu3+ phosphor at about 593 nm and reached the maximum whenthe mole fraction of Bi3+ was 5%.

Key words: luminescence, phosphor, solid-state reaction

中图分类号: 

  • O614
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