Engineering of the band gap and optical properties of thin films of yttrium hydride

Journal Article · Mon Jul 21 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4891175· OSTI ID:22311135

You, Chang Chuan; Mongstad, Trygve; Maehlen, Jan Petter; Karazhanov, Smagul ^[1]

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1. Institute for Energy Technology, P.O. Box 40, NO-2027 Kjeller (Norway)

Thin films of oxygen-containing yttrium hydride show photochromic effect at room temperature. In this work, we have studied structural and optical properties of the films deposited at different deposition pressures, discovering the possibility of engineering the optical band gap by variation of the oxygen content. In sum, the transparency of the films and the wavelength range of photons triggering the photochromic effect can be controlled by variation of the deposition pressure.

• OSTI ID: 22311135
• Journal Information: Applied Physics Letters, Vol. 105, Issue 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL STRUCTURE
DEPOSITION
OPACITY
OPTICAL PROPERTIES
OXYGEN
PHOTONS
TEMPERATURE RANGE 0273-0400 K
THIN FILMS
WAVELENGTHS
YTTRIUM HYDRIDES