Ellipsometric study of optical switching processes of Mg-Ni based switchable mirrors
2011 (English)In: Thin Solid Films, ISSN 0040-6090, E-ISSN 1879-2731, Vol. 519, no 9, 2941-2945 p.Article in journal (Refereed) Published
Optical switching processes of Mg-Ni based switchable mirrors were studied "in situ" using spectroscopic ellipsometry. Ellipsometric angles psi and Delta of the switchable mirrors varied drastically as a result of hydrogenation and dehydrogenation. These variations are due to transformation between metal and semiconductor of Mg-Ni layers. We have clarified the switching processes by analyzing these variations using the following two steps. First, we evaluated dielectric functions of five materials: metal, hydrogen-solid-solution, hydride states of Mg-Ni alloy, and metal and hydride states of Pd. Using these dielectric functions, we then varied thickness and concentration of each layer.
Place, publisher, year, edition, pages
2011. Vol. 519, no 9, 2941-2945 p.
Switchable mirrors, Mg-Ni alloy, In situ ellipsometry, Dielectric constants, Switching processes
Engineering and Technology
Research subject Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-152772DOI: 10.1016/j.tsf.2010.12.082ISI: 000289174200082OAI: oai:DiVA.org:uu-152772DiVA: diva2:414107