使用高温常压方法合成了稀土发光材料LaOBr:Dy3+,Tb3+,研究了其结构、紫外及阴极射线激发下的激发与发射光谱Dy3+的掺杂可将Tb3+的5D3能级的激发能有效地弛豫到5D4能级,从而使5D4-7FJ(J=0.1…6)的发射,尤其是5D4-7F5的发射明显增强,发光亮度提高。
The rare earth luminescence materials LaOBr: Tb3+Dy3+ were synthesized with high temperature,and the structure and luminescence characteristcs were studied. The codoping Dy3+ may makes the energy of 5D3 of Tb3+ transfer to 5D4 level, which makes the emmi
参考文献
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