Synthesis and $\textit{in-situ}$ characterization of photochromic yttrium oxyhydride grown by reactive $e^-$-beam evaporation

K. Kantre; M. V. Moro; D. Moldarev; M. Wolff; D. Primetzhofer

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arXiv · 2004.01093

Synthesis and $\textit{in-situ}$ characterization of photochromic yttrium oxyhydride grown by reactive $e^-$-beam evaporation

K. Kantre·M. V. Moro·D. Moldarev·M. Wolff·D. Primetzhofer

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Abstract

We report on controlled growth of photochromic yttrium oxyhydride thin films monitored by $\textit{in-situ}$ composition depth profiling. Films were grown by reactive $e^-$-beam evaporation and subsequently oxidized, while simultaneously tracking the oxygen and hydrogen concentrations. Sample composition and photochromic response were characterized $\textit{in-situ}$ using non destructive ion beam analysis and image analysis, respectively - as well as complementary $\textit{ex-situ}$ ion beam methods, X-ray diffraction and optical spectrophotometry. We show that photochromic yttrium oxyhydride can be grown as yttrium dihydride, which is then oxidized to O/H ratios triggering the photochromic response.

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K. Kantre, M. V. Moro, D. Moldarev, M. Wolff, D. Primetzhofer. 2020-04-02. Synthesis and $\textit{in-situ}$ characterization of photochromic yttrium oxyhydride grown by reactive $e^-$-beam evaporation. https://arxiv.org/abs/2004.01093

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