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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Local structure of Er3+ in multicomponent glasses
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Local structure of Er3+ in multicomponent glasses

机译：多组分玻璃中Er3 +的局部结构

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摘要

Erbium environments in several multicomponent glasses are investigated using X-ray absorption fine structure spectroscopy on the Er L-III-edge. Glass hosts studied include aluminosilicate, fluorosilicate, phosphosilicate, alkali phosphate, fluoride, and another multicomponent silicate glass. The Er-O separation is found to vary only slightly between 2.21 and 2.25 Angstrom. The first shell coordination number is dependent on glass host ranging from 6.3 nearest neighbor anions in the aluminosilicate glass to 10.0 in the fluoride host. The Debye-Waller factor for the first shell is also host dependent. It ranges from 0.021 Angstrom(2) in the phosphate hosts to 0.033 Angstrom(2) in the aluminosilicate glass. While Er-Er correlations are observed in the crystalline Er2O3 standard, no evidence of molecular or short-range clustering of Er3+ ions is found in the glasses. Photoluminescence spectra are also presented for each of the glass hosts examined. (C) 1938 Elsevier Science B,V. All rights reserved. [References: 25]
机译：使用Er L-III边缘的X射线吸收精细结构光谱研究了几种多组分玻璃中的b环境。研究的玻璃基质包括铝硅酸盐，氟硅酸盐，磷硅酸盐，碱式磷酸盐，氟化物和另一种多组分硅酸盐玻璃。发现Er-O分离在2.21至2.25埃之间仅略有变化。第一个壳的配位数取决于玻璃基质，范围从铝硅酸盐玻璃中的6.3最近邻阴离子到氟化物基质中的10.0。第一个外壳程序的Debye-Waller因子也取决于主机。它的范围从磷酸盐主体中的0.021埃（2）到铝硅酸盐玻璃中的0.033埃（2）。尽管在晶体Er2O3标准品中观察到Er-Er相关性，但在玻璃中没有发现Er3 +离子分子或短程聚集的证据。还显示了所检查的每种玻璃主体的光致发光光谱。 （C）1938年Elsevier Science B，V。版权所有。 [参考：25]

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