CJCU

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (1): 9.

• Articles • Previous Articles     Next Articles

Luminescent Centres o Eu2+in BaMgAl10O17Phosphor

LIU Ying-Liang1, LI Yuan-Ying1, YANG Yan-Sheng1, SHI Chun-Shan2   

  1. 1. Department of Chemistry, Zhongshan Clniversity, Guangxhou, 510275;
    2. Laboratory of Rare Earth Chemistry and Physics, Changchun Inslitnie of Applied Chemistry, Academia Sinica, Changchun
  • Received:1993-10-12 Revised:1994-04-15 Online:1995-01-24 Published:1995-01-24

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Abstract: Influence of flux on luminescence of Eu2+in phosphor BaMgAl10O17 is discussed.The observation of the two kinds of luminescent centres,Eu2+F-and Eu2+(O2-),in the phosphor is reported. There exist Eu2+F-centres in the phosphor due to the substitution of F-ions for O2-ions. Effective energy transfer from Eu2+(F-)to Eu2-(O2-) was observed. The quenched concentration of Eu2+in BaMgAl10O17raised by 0.20 mol/Ldue to new luminescent centre Eu2+F-.

Key words: Barium magnesium polyaluminate, Europium(Ⅱ), Luminescent centres

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