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Photochromic mechanism in oxygen-containing yttrium hydride thin films: An optical perspective

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Montero, J. y Martinsen, F. A. y García Tecedor, M. y Karazhanov, S Zh. y Maestre Varea, David y Hauback, B. y Marstein, E. S. (2017) Photochromic mechanism in oxygen-containing yttrium hydride thin films: An optical perspective. Physical review B, 95 (20). ISSN 2469-9950

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URL Oficial: http://dx.doi.org/10.1103/PhysRevB.95.201301


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Resumen

Oxygen-containing yttrium hydride thin films exhibit photochromic behavior: Transparent thin films reversibly switch from a transparent state to a photodarkened state after being illuminated with UV or blue light. From optical spectrophotometry and ellipsometry measurements of the transparent state and photodarkened state, it is concluded that the photochromic effect can be explained by the gradual growth, under illumination, of metallic domains within the initial wide-band-gap semiconducting lattice. This conclusion is supported by Raman measurements.


Tipo de documento:Artículo
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©2017 American Physical Society.
This work was financially supported by the Norwegian Research Council though the FRINATEK Project No. 240477/F20 and the IDELAB/NANO2021 Project No. 238848.

Palabras clave:Physics, Condensed matter
Materias:Ciencias > Física > Física de materiales
Ciencias > Física > Física del estado sólido
Código ID:44471
Depositado:07 Sep 2017 18:32
Última Modificación:04 Jul 2018 18:15

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