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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 >Optically active oxygen-deficiency-related centers in amorphous silicon dioxide
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Optically active oxygen-deficiency-related centers in amorphous silicon dioxide

机译：非晶态二氧化硅中与旋光性缺氧有关的中心

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摘要

The spectroscopic properties, structure and interconversions of optically active oxygen-deficiency-related point defects in vitreous silica are reviewed. These defects, the E'-centers (oxygen vacancies with a trapped hole or 3-fold-coordinated silicons), different variants of diamagnetic "ODCs' (oxygen-deficiency centers), and their Ge-related analogs play a key role in the fiber-optic Bragg grating writing processes. The controversy surrounding the structural models for the Si- and Ge-related ODCs is discussed and the similarity between the bulk and surface point defects in silica is emphasized. The possible interconversion mechanisms between 2-fold-coordinated Si, neutral oxygen vacancies and E'-centers are discussed. The effects of glassy disorder have a profound effect on defect properties and interconversion processes in silica, (C) 1998 Elsevier Science B.V. All rights reserved. [References: 164]
机译：综述了玻璃态二氧化硅中光学活性氧缺陷相关点缺陷的光谱性质，结构和相互转化。这些缺陷，E'中心（带有陷阱的氧空位或3倍配位的硅），抗磁性“ ODCs”的不同变体（缺氧中心）及其与Ge相关的类似物在该过程中起着关键作用。光纤布拉格光栅的写入过程，围绕Si和Ge相关ODC的结构模型进行了讨论，并强调了硅的体缺陷和表面点缺陷之间的相似性，并指出了两重配位之间可能的相互转换机制讨论了硅，中性氧空位和E'中心，玻璃态无序的影响对二氧化硅的缺陷性质和互变过程具有深远的影响，（C）1998 Elsevier Science BV版权所有[参考文献：164]

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