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Structural and Electronic Properties of Magnesium-3D Transition Metal Switchable Mirrors

Publication Type

Conference Paper

Date Published

12/2002

Authors

Farangis, Baker, Ponnusamy Nachimuthu, Thomas J. Richardson, Jonathan L. Slack, Bruno K. Meyer, Rupert C.C. Perera, Michael D. Rubin

DOI

10.1016/j.ssi.2003.08.041

Abstract

We have observed reversible mirror-to-transparent state switching in a variety of mixed metal thin films containing magnesium and first-row transition elements including Ni, Fe, Co, Mn, and Ti. The very large changes in both reflectance and transmittance on loading these films with hydrogen are accompanied by significant structural and electronic transformations. The valence states and coordination of metal atoms during hydrogen loading were followed using dynamic in situ transmissionmode X-ray absorption spectroscopy. Time-resolved Mg K-edge and Ni, Co, Mn, and Ti L-edge spectra reflect both reversible and irreversible changes in the metal environments. These spectra are compared to those of reference materials and to predictions from calculations.

Journal

Fifth International Meeting on Electrochromism

Year of Publication

2002

Organization

Building Technologies Department, Building Technology and Urban Systems Division, Windows and Envelope Materials

Research Areas

Advanced Coatings, Building Façade Solutions, Windows and Daylighting, W and D: Dynamic Glazings and Advanced Coatings, BTUS Windows and Daylighting