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首页> 外文会议>Seventh International Symposium on the Physics and Chemistry of Luminescent Materials of The Electrochemical Society, which was held in Boston on November 1-6, 1998. >Impurity core-valence luminescence of Cs-doped alkali chlorides
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Impurity core-valence luminescence of Cs-doped alkali chlorides

机译：掺Cs的碱金属氯化物的杂质中心价发光

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摘要

The features of relaxation processes occurring in the outermost core states of Cs-doped alkali chlorides have been studied via the measurements of the impurity core-valence luminescence (CVL) emerging from radiative recombination of valence electrons with the loes created in 5pCs-core states. The emission spectrum shape is revealed to exhibit obvious influence of the lattice relaxation effects rsulting in thermal broadening of the emission band. Strong enhancement of the emission yield and inverse anticorrelaton between luminescence exitation and reflection spectra is reveraled in the region of impurity core excitons. On the other side, manifestation of usual anticorrelation of these spectra is detected in the host core exciton region. The surface quenching effects are anticipated to govern, to a great extent, the character of decay processes in the above energy regions. The correlation between impurity CVL yield spectra and decay time behaviour versus excitation energy is found to confirm the mentioned suggestion.
机译：通过测量价电子与在5pCs核态中产生的离子的辐射复合产生的杂质核价发光（CVL），研究了Cs掺杂碱金属氯化物的最外核态中发生的弛豫过程的特征。发射光谱形状显示出显示出明显的晶格弛豫效应的影响，这导致了发射带的热展宽。在杂质核激子的区域中恢复了发射产量的强烈增强和发光出射与反射光谱之间的反相关。另一方面，在宿主核心激子区域中检测到这些光谱的通常反相关的表现。预期表面淬火作用将在很大程度上控制上述能量区域中的衰变过程。发现杂质CVL收率光谱与衰减时间行为与激发能之间的相关性可以证实上述建议。

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