Synthesis and in-situ characterization of photochromic yttrium oxyhydride grown by reactive e−-beam evaporation

We report on controlled growth of photochromic yttrium oxyhydride thin films monitored by 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 phot...

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Bibliographic Details
Published inScripta materialia Vol. 186; pp. 352 - 356
Main Authors Kantre, K., Moro, M.V., Moldarev, D., Wolff, M., Primetzhofer, D.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.09.2020
Subjects
Electron-beam evaporation
In-situ ion beam analysis
Photochromism
Yttrium oxyhydrides
In-situ ion beam analysis
Photochromism
Yttrium oxyhydrides
Electron-beam evaporation
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Summary:We report on controlled growth of photochromic yttrium oxyhydride thin films monitored by 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 in-situ using non-destructive ion beam analysis and image analysis, respectively – as well as complementary 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. [Display omitted]
ISSN:1359-6462
1872-8456
1872-8456
DOI:10.1016/j.scriptamat.2020.05.009