Mixed metal films with switchable optical properties

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Thin, Pd-capped metallic films containing magnesium and first row transition metals (Mn, Fe, Co) switch reversibly from their initial reflecting state to visually transparent states when exposed to gaseous hydrogen or following cathodic polarization in an alkaline electrolyte. Reversion to the reflecting state is achieved by exposure to air or by anodic polarization. The films were prepared by co-sputtering from one magnesium target and one manganese, iron, or cobalt target. Both the dynamic optical switching range and the speed of the transition depend on the magnesium-transition metal ratio. Infrared spectra of films in the transparent, hydrided (deuterided) states support the ... continued below

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Richardson, Thomas J.; Slack, Jonathan L.; Farangis, Baker & Rubin, Michael D. October 16, 2001.

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Thin, Pd-capped metallic films containing magnesium and first row transition metals (Mn, Fe, Co) switch reversibly from their initial reflecting state to visually transparent states when exposed to gaseous hydrogen or following cathodic polarization in an alkaline electrolyte. Reversion to the reflecting state is achieved by exposure to air or by anodic polarization. The films were prepared by co-sputtering from one magnesium target and one manganese, iron, or cobalt target. Both the dynamic optical switching range and the speed of the transition depend on the magnesium-transition metal ratio. Infrared spectra of films in the transparent, hydrided (deuterided) states support the presence of the intermetallic hydride phases Mg3MnH7, Mg2FeH6, and Mg2CoH5.

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  • Journal Name: Applied Physics Letters; Journal Volume: 80; Journal Issue: 8; Other Information: Journal Publication Date: 25 Feb. 2002

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  • Report No.: LBNL--49043
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 792947
  • Archival Resource Key: ark:/67531/metadc738308

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  • October 16, 2001

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 4, 2016, 1:38 p.m.

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Richardson, Thomas J.; Slack, Jonathan L.; Farangis, Baker & Rubin, Michael D. Mixed metal films with switchable optical properties, article, October 16, 2001; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc738308/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.