Maximal Photodarkening in the Ge–As–S Glass System,Physica Status Solidi (B) - Basic Solid State Physics

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Maximal Photodarkening in the Ge–As–S Glass System
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2021-05-28 , DOI: 10.1002/pssb.202100180
Keiji Tanaka ₁

Affiliation

Many studies have been conducted on the photodarkening in chalcogenide glasses, and a maximal change is demonstrated to appear around Ge₂₀As₂₅S₅₅. However, the reason for this selected composition remains unanswered, for which a plausible idea is proposed here. It seems that the composition has a maximal atomic volume in the ternary system, which probably gives rise to least photoexpansion (or photocontraction). The idea suggests that disordered, moderately-rigid networks are effective in enhancing the photodarkening through suppressing macroscopic viscous relaxation.

中文翻译：

Ge-As-S 玻璃系统中的最大光暗化

已经对硫属化物玻璃中的光暗化进行了许多研究，并且证明了最大的变化出现在Ge ₂₀ As ₂₅ S ₅₅周围。然而，选择这种组合的原因仍未得到解答，为此提出了一个看似合理的想法。似乎该组合物在三元系统中具有最大的原子体积，这可能引起最小的光膨胀（或光收缩）。这个想法表明，无序的、中等刚性的网络可以通过抑制宏观粘性弛豫来有效地增强光暗化。

更新日期：2021-05-28

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