Print Email Facebook Twitter Effect of the addition of zirconium on the photochromic properties of yttrium oxy-hydride Title Effect of the addition of zirconium on the photochromic properties of yttrium oxy-hydride Author Nafezarefi, F. (TU Delft ChemE/Materials for Energy Conversion and Storage) Cornelius, S. (TU Delft ChemE/Materials for Energy Conversion and Storage) Nijskens, J. (Student TU Delft) Schreuders, H. (TU Delft ChemE/Afdelingsbureau) Dam, B. (TU Delft ChemE/Materials for Energy Conversion and Storage) Date 2019 Abstract Thin films of yttrium oxy-hydride have interesting, reversible photochromic properties, the origin of which is poorly understood. To investigate the role of point defect mobility, we probed the effect of lattice contraction as induced by the addition of zirconium. Interestingly, we find no loss of photochromic contrast for Y 1-z Zr z O x H y films with a small Zr cationic fractions (z < 0.15). At larger fractions the photochromic contrast is reduced. Zirconium is found to slow down the bleaching process, which suggests that the mobility of point defects may play a role in the thermal bleaching process. However, we cannot rule out substitution of zirconium in the YO x H y lattice which may also affect the photochromic properties. Subject Photochromic materialsReactive sputteringThin filmsYttrium oxy-hydride To reference this document use: http://resolver.tudelft.nl/uuid:c1eed38d-2ecb-421e-bfa2-d87615d8e01c DOI https://doi.org/10.1016/j.solmat.2019.109923 ISSN 0927-0248 Source Solar Energy Materials & Solar Cells, 200 Part of collection Institutional Repository Document type journal article Rights © 2019 F. Nafezarefi, S. Cornelius, J. Nijskens, H. Schreuders, B. Dam Files PDF 1_s2.0_S0927024819302442_main.pdf 2.89 MB Close viewer /islandora/object/uuid:c1eed38d-2ecb-421e-bfa2-d87615d8e01c/datastream/OBJ/view