Magnesium and titanium: “The odd couple” Local order and the influence of stress on the hydrogen sorption properties of Mg-Ti thin films
نویسندگان
چکیده
Mg-Ti-H thin films are found to have very attractive optical properties: they absorb 87% of the solar radiation in the hydrogenated state and only 32% in the metallic state. Furthermore, in the absorbing state Mg-Ti-H has a low emissivity; at 400 K only 10% of black body radiation is emitted. The transition between both optical states is fast, robust and reversible. The sum of these properties highlights the applicability of such materials as switchable smart coatings in solar collectors. This paper has been published: D. M. Borsa, A. Baldi, M. Pasturel, H. Schreuders, B. Dam, R. Griessen, P. Vermeulen and P. H. L. Notten, Appl. Phys. Lett. 88, 241910 (2006) 2.2 Mg-Ti-H thin films for smart solar collectors 21
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