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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 >On the photodissolution kinetics of silver in glassy As2S3
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On the photodissolution kinetics of silver in glassy As2S3

机译：关于玻璃态As2S3中银的光解动力学

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摘要

The kinetics of the photodissolution of Ag into glassy As2S3 films and its dependence oil temperature have been studied by monitoring the changes that occur both in their transmission spectra and transmission of weakly absorbed broadband light. It was shown that besides of a low induction period, the photodissolution kinetics consists of two linear steps with different activation energies, followed by a parabolic tail. The transitions between photodissolution steps was found to be not Monotonous and explained in terms of Elliott's model, which asserts a simultaneous ionic and electronic charge transport controlled by chalcogenide properties, illumination and temperature. The evidence is given that the islanding of Ag layer in the course of photoreaction, results in an inversion of maxima and minima of transmission spectra. It is suggested that the islanding of Ag layer is not a consequence of a non-uniform dissolution but arises itself at critical thickness, at which Ag forms a continuous film.
机译：研究了银在玻璃状As2S3薄膜中的光溶解动力学及其对油温的依赖性，方法是监测银的透射光谱和弱吸收宽带光的透射变化。结果表明，除了低诱导期外，光溶解动力学还包括两个具有不同活化能的线性步骤，然后是抛物线尾。发现光溶解步骤之间的过渡不是单调的，并根据Elliott模型进行了解释，该模型确定了同时受硫族化物性质，光照和温度控制的离子和电子电荷传输。有证据表明，在光反应过程中银层的孤岛化导致透射光谱的最大值和最小值反转。有人认为，Ag层的离岛不是非均匀溶解的结果，而是在临界厚度处出现，Ag在该临界厚度处形成连续膜。

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