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首页> 外文会议>International Conference on Management, Manufacturing and Materials Engineering >Influence of Different Auxiliary Activators Doping on Spectral Properties of Sr_3Al_2O_6: Eu~(2+) Phosphors
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Influence of Different Auxiliary Activators Doping on Spectral Properties of Sr_3Al_2O_6: Eu~(2+) Phosphors

机译：不同辅助活化剂掺杂对SR_3AL_2O_6光谱性质的影响：EU〜（2+）磷光体

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摘要

The long afterglow luminescent materials Sr_3Al_2O_6: Eu~(2+), Re~(3+) (Re = La, Ce, Pr, Nd, Sm, Gd, Dy, Er) were synthesized via solid-state reaction. X-ray diffraction and fluorescence spectrophotometer were employed to characterize the phosphors. The excitation spectra were all well simulated by eight Gaussian curves, indicating that they originated from the 4f~7 (~8S_(7/2)) - 4f~65d (~8H_J) transitions of Eu~(2+) ions. The excitation spectra intensity of Sr_3Al_2O_6: Eu~(2+), Sm~(3+) is much stronger than the others, which indicates that there is a more efficient energy transfers from Sm~(3+) to Eu~(2+). The simulated results of the emission spectra showed that they generated from the Eu~(2+) ions in the Sr~(2+) sites of SrO_6 and SrO_7 polyhedral, which indicated that the Eu~(2+) ions were apt to occupy low-coordination crystallographic site. The proposed explanation for excitation spectra and emission spectra property were also discussed.
机译：通过固态反应合成，通过固态反应合成了长〜（2+），RE〜（2+），RE〜（3+），RE〜（3+）（RE = LA，CE，PR，ND，SM，GD，DY）。使用X射线衍射和荧光分光光度计表征磷光体。激发光谱均匀地模拟八条高斯曲线，表明它们源于Eu〜（2+）离子的4F〜7（〜8〜（7/2））-4F〜65d（〜8h_j）转变。 SR_3AL_2O_6的激发谱强度：EU〜（2+），SM〜（3+）比其他方式强大，表明从SM〜（3+）到EU〜（2+）有更有效的能量转移〜（2+ ）。发射光谱的模拟结果表明，它们从Sr〜（2+）位点的Eu〜（2+）离子中的Sr〜（2+）位点产生，表明Eu〜（2+）离子易于占据低协调晶体位点。还讨论了激发光谱和发射光谱特性的提出的解释。

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