应用化学 ›› 1988, Vol. 0 ›› Issue (2): 71-73.

• 研究简报 • 上一篇    下一篇

LiAl5O8:Fe荧光粉的研究与应用

张长拴, 王锦业   

  1. 郑州大学化学系
  • 收稿日期:1987-03-31 修回日期:1987-09-03 出版日期:1988-04-10 发布日期:1988-04-10

STUDY ON PHOSPHORS FROM LiAl5O8:Fe POWDER

Zhang Changshuan, Wang Jinye   

  1. Department of Chemistry, Zhengzhou University
  • Received:1987-03-31 Revised:1987-09-03 Published:1988-04-10 Online:1988-04-10

摘要: 目前市售硼酸镉、钒酸钇和砷酸盐等灯用红色荧光粉,发射波长一般在610nm左右,呈桃红色.砷酸盐荧光粉掺红颜料,因而看到的是颜料的颜色,砷酸盐还有毒.因此,研制一种发射波长长,原料无毒的大红单色荧光粉有着重要的意义.关于金属离子Mn2+、Cr3+、Co2+和Ni2+在LiAl5O8中的发光特性已有研究.本文报导激活剂Fe3+离子浓度和烧结温度对Fe3+在LiAl5O8中发光性质的影响,并对该荧光粉的发光机制和效率等进行讨论.

关键词: 荧光粉, 铝酸盐, 激活剂, 铁离子

Abstract: In this paper the synthesis and characteristic properties of LiAl5O8:Fe flourescence powder are reported. The effects of concentration of excited ion Fe3+ and sintering temperature on flourescence intensity have been investigated and the optimum conditions for LiAl5O8:Fe powder preparation were estabilished. The strongest flourescence peak of phosphors is at 670nm, The powder can be applied to colored and agricutural lamp production.

Key words: Phosphors, Aluminate, Activator Iron ion