On the Crystal Chemistry of Photochromic Yttrium Oxyhydride

Magnus H. Sørby, Fredrik Martinsen, Smagul Zh. Karazhanov, Bjørn C. Hauback and Erik S. Marstein
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Magnus H. Sørby: Institute for Energy Technology, P.O. Box 40, 2027 Kjeller, Norway
Fredrik Martinsen: Institute for Energy Technology, P.O. Box 40, 2027 Kjeller, Norway
Smagul Zh. Karazhanov: Institute for Energy Technology, P.O. Box 40, 2027 Kjeller, Norway
Bjørn C. Hauback: Institute for Energy Technology, P.O. Box 40, 2027 Kjeller, Norway
Erik S. Marstein: Institute for Energy Technology, P.O. Box 40, 2027 Kjeller, Norway

Energies, 2022, vol. 15, issue 5, 1-6

Abstract: Yttrium oxyhydride exhibits photochromic properties at ambient temperature and pressures. Although oxygen plays an important role in determining the optoelectronic properties of the material, the question remains open regarding the site that it occupies in the crystal structure. In this paper, we address the issue by synchrotron radiation and neutron powder diffraction measurements. We report that the oxide anions occupy tetrahedral sites together with hydride anions in the face-centered cubic structure.

Keywords: yttrium hydride; oxyhydride; photochromic materials (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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