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溴氧镧铽镝的发光特性及能量传递机理 被引量:1

THE LUMINESCENCE PROPERTIES AND ENERGY TRANSFER MECHANISM OF LaOBr:Tb ̄(3+),Dy ̄(3+)
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摘要 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 emmision of 5D4-7FJ, specially of 5D4-7F5,enhance obviously, and the tatol brightness is increased by about 40% in comparision with the sample without Dy3+ ions, which is result from energy transfer of diple-diple interaction between Tb3+ and codoping Dy3+.
机构地区 四平师范学院
出处 《材料研究学报》 EI CAS CSCD 1996年第5期536-540,共5页 Chinese Journal of Materials Research
基金 国家教委优秀年轻教师基金 中科院金属所快速凝固与非平衡合金国家重点实验室项目
关键词 溴氧镧铽镝 稀土发光 共振能量传递 Rare earth luminescence energy transfer LaOBr:Tb ̄(3+), Dy ̄(3+)
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参考文献2

  • 1施朝淑,稀土,1982年,3卷,17页
  • 2罗淑仪,北京大学学报,1981年,4卷,51页

同被引文献7

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