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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 >Relaxation of photodarkening in amorphous As-Se films doped with metals
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Relaxation of photodarkening in amorphous As-Se films doped with metals

机译：金属掺杂非晶态As-Se薄膜中光暗化的弛豫

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摘要

Photodarkening relaxation under light exposure of a-As2Se3 amorphous films doped with 0.5 at.% of metals Sn, Mn, Sm or Dy and a-AsSe films doped up to 10.0 at.% Sn was studied to determine its dependence on the type and concentration of impurities and thermal treatments. Both factors reduce photodarkening with the degree of reduction dependent on the type of impurity. The relaxation process may be described by a stretched exponential with the dispersion parameter 0.4 less than or equal to alpha < 0.9 and the time constant increasing with Impurity concentration or thermal annealing. The results are discussed in the context of the recently formulated 'slip-motion' model of photodarkening in chalecgenide glasses. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 5]
机译：研究了掺杂0.5at。％的金属Sn，Mn，Sm或Dy的a-As2Se3非晶膜和掺杂高达10.0at。％的Sn的a-AsSe膜在光照射下的光暗弛豫，以确定其对类型和浓度的依赖性杂质和热处理。这两个因素都会减少光暗化，其减少程度取决于杂质的类型。弛豫过程可以通过色散参数0.4小于或等于alpha <0.9且时间常数随杂质浓度或热退火而增加的拉伸指数来描述。在最近制定的硫属化物玻璃中的光暗化的“滑移”模型中讨论了结果。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：5]

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