Photochromism in Isotopically Labeled Oxygen-Containing Yttrium−Hydride and Deuteride Thin-Film Systems,Physica Status Solidi-Rapid Research Letters

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Photochromism in Isotopically Labeled Oxygen-Containing Yttrium−Hydride and Deuteride Thin-Film Systems
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2021-12-08 , DOI: 10.1002/pssr.202100508
Marcos V. Moro ₁ , Sigurbjörn M. Aðalsteinsson ₁ , Dmitrii Moldarev _{1,

2} , Max Wolff ₁ , Daniel Primetzhofer ₁

Affiliation

Photochromic mono- and bilayered thin films of oxygen-containing isotope-labeled yttrium−hydride (i.e., protium and deuterium) are synthesized via reactive Ar sputtering. Selected samples are encapsulated with transparent diffusion barriers. Combining depth-resolved nondestructive ion beam-based techniques for composition and optical spectrophotometry, material mobility in the samples during illumination and over time is investigated. The results reveal that deuteride thin films exhibit a strong photochromic response equivalent to hydrogenated systems. No evidence of long-distance light-induced hydrogen mobility or thermal diffusion is found. The findings thus show that photochromism is not connected to long-distance material transport. The observations for encapsulated samples also exclude direct material exchange with the environment and any environmental influence on material mobility.

中文翻译：

同位素标记的含氧钇-氢化物和氘化物薄膜系统中的光致变色

含氧同位素标记的氢化钇（即氕和氘）的光致变色单层和双层薄膜是通过反应性 Ar 溅射合成的。选定的样品用透明的扩散屏障封装。结合深度分辨的基于非破坏性离子束的成分和光学分光光度法技术，研究了照明期间和随时间推移样品中的材料迁移率。结果表明，氘化物薄膜表现出与氢化系统相当的强光致变色响应。没有发现长距离光致氢迁移或热扩散的证据。因此，研究结果表明，光致变色与长距离物质传输无关。

更新日期：2021-12-08

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