Energy Transfer in LaOBr:Tb,Gd
来源期刊:Journal of Rare Earths1992年第1期
论文作者:伍瑜 唐虹 诸葛星 赵文彬
文章页码:25 - 29
摘 要:<正> Energy transfer in LaOBr:Tb0.0075,Gdx(x<0.30)was investigated via excitation spectra,emissionspectra,fluorescence decay function and X-ray diffraction.Effective energy transfer from Gd to Tb was found.With excitation of λ=275nm,no Gd3+but only Tb3+emission has been observed,and the integrated intensityof Tb3+emission increases with increasing Gd content up to~5.5 times(in the sample of x=0.30)compared tothat of the sample without Gd.The existense of Gd in the sample slows down the Tb3+flourescence decay,andmost likely the electric dipole-dipole interaction dominates the energy transfer process.
伍瑜,唐虹,诸葛星,赵文彬
摘 要:<正> Energy transfer in LaOBr:Tb0.0075,Gdx(x<0.30)was investigated via excitation spectra,emissionspectra,fluorescence decay function and X-ray diffraction.Effective energy transfer from Gd to Tb was found.With excitation of λ=275nm,no Gd3+but only Tb3+emission has been observed,and the integrated intensityof Tb3+emission increases with increasing Gd content up to~5.5 times(in the sample of x=0.30)compared tothat of the sample without Gd.The existense of Gd in the sample slows down the Tb3+flourescence decay,andmost likely the electric dipole-dipole interaction dominates the energy transfer process.
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