Enhancement of ZnSe stability during optical composite processing via atomic layer deposition
Enhancement of ZnSe stability during optical composite processing via atomic layer deposition
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DOI：
10.1016/j.jnoncrysol.2021.121259
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发表时间：
2021-11
影响因子：
3.5
通讯作者：
Matthieu Chazot;Alexandros Kostogiannes;M. Julian;Corbin Feit;Jaynlynn Sosa;M. Kang;Cesar Blanco
中科院分区：
文献类型：
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作者：
Matthieu Chazot;Alexandros Kostogiannes;M. Julian;Corbin Feit;Jaynlynn Sosa;M. Kang;Cesar Blanco
本研究评估的影响和稳定性行为的候选人的保护壳的Al 2 O3，其目的是阻碍溶解的硒化锌在砷-硫-硒玻璃系统在所谓的“研磨-重熔”过程中。选择原子层沉积（ALD）作为共形壳涂层的途径，并评估所得膜属性对粉末和本体复合材料性质的作用，以确定ALD膜属性如何辅助硫族化物玻璃熔体环境中的稳定性。结果表明，臭氧预处理，在ALD之前进行的ZnSe粉末，提高颗粒的稳定性，导致在一个显着降低的溶解行为的涂层粉末。这种增强的稳定性随着壳厚度和在粉末上使用臭氧预处理步骤而增加。通过XPS和HR-TEM评估的涂层化学和结构说明了在玻璃基质中不同负载水平下不同ZnSe涂覆颗粒的溶解机制。
This study evaluates the impact and stability behavior of a candidate protective shell of Al2O3which aims to hinder the dissolution of ZnSe in As-S-Se glass systems during the so-called ‘grinding-remelt’ process. Atomic Layer Deposition (ALD) was chosen as the route to conformal shell coating and the role of resulting film attributes on powder and bulk composite properties were assessed to ascertain how ALD film attributes aided stability in the chalcogenide glass melt environment. It is shown that an ozone pre-treatment, performed on the ZnSe powders prior to the ALD, improves particle stability, resulting in a significant decrease of the dissolution behavior of coated powders. This enhanced stability increases with shell thickness and with the use of ozone pretreatment step on the powders. Coating chemistry and structure evaluated via XPS and HR-TEM illustrates the mechanism of dissolution for different ZnSe coated particles at varying loading levels in the glass matrix.