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The luminophors of four kinds of alkaline earth meta-silicates doped with Eu~3 and/or Bi~(3+)ion(s)weresynthesized and the luminescence properties of Bi~(3+)and Eu~(3+)ions were studied.The regularities that Me(Ⅱ)ions affect the luminescence of Eu~(3+)ion sensitized by Bi~(3+)ion were investigated.The optimum composition andsynthesis condition were obtained.The absorption and emission peak are situated at 283 and 353nm with theoptimum concentration 0.02 mol of Bi~(3+)in CaSiO_3:Bi.In CaSiO_3:Bi,the optimum concentration of Bi~(3+)is0.007 mol and that of Eu~(3+)is 0.040 mol.For all of the alkaline earth ions concerned in MeSiO_3:Eu,Bi,theBi~(3+)can sensitize the Eu~(3+)and the Me(Ⅱ)ions in host and make a great difference in the adsorption hand ofBi~(3+)ion.by exciting Bi~(3+)ion,the emissions are from both Eu~(3+)and Bi~(3+)ions and the best sensitization effectis achieved when Me(Ⅱ)is Sr.
The luminophors of four kinds of alkaline earth meta-silicates doped with Eu ~ 3 and / or Bi ~ (3+) ion (s) weresynthesized and the luminescence properties of Bi ~ (3+) and Eu ~ (3+) ions were studied.The regularities that Me (Ⅱ) ions affect the luminescence of Eu ~ (3+) ion sensitized by Bi ~ (3 +) ion were investigated.The optimum composition andsynthesis condition were.The absorption and emission peak are situated at 283 The optimum concentration of Bi ~ (3+) is 0.007 mol and that of Eu ~ (3+) is 0.040 mol . For all of the alkaline earth ions concerned in MeSiO 3: Eu, Bi, theBi 3+ can sensitize the Eu 3+ and the Me (II) ions in host and make a great difference in the drawn hand ofBi ~ (3+) ion.by exciting Bi ~ (3+) ion, the emissions are from both Eu ~ (3+) and Bi ~ (3+) ions and the best sensitization effect achieve achieved when Me (II) is Sr.