Electrochromic properties of MnO2 thin films

Susana Ines Cordoba de Torresi; Annette Gorenstein

doi:10.1117/12.130533

25 November 1992 Electrochromic properties of MnO₂ thin films

Susana Ines Cordoba de Torresi, Annette Gorenstein

Proceedings Volume 1728, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Chromogenics for Smart Windows; (1992) https://doi.org/10.1117/12.130533
Event: Optical Materials Technology for Energy Efficiency and Solar Energy, 1992, Toulouse-Labege, France

Abstract

Electrochromic tungsten oxyfluoride thin films were made by reactive magnetron sputtering of W in Ar+O₂+CF₄. A moderate CF₄ fraction led to deposition at enhanced rates and films with fairly neutral colour in their dark state. Transparent vanadium oxyfluoride films were made analogously; they were annealing posttreated in Ar+0₂+CF₄. By fluorination it was possible to avoid the short-wavelength absorption that otherwise limits the usefulness of V₂0₅ in electrochromic smart windows. A transparent, adhesive, viscoelastic polymer electrolyte laminate was developed. It has good voltammetric cycling capability (106 times), good optical transmittance, and high conductivity, ranging from 10^-6 S/cm (-10°C) to 10^-3 S/cm (80°C).

Citation Download Citation

Susana Ines Cordoba de Torresi and Annette Gorenstein "Electrochromic properties of MnO₂ thin films", Proc. SPIE 1728, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Chromogenics for Smart Windows, (25 November 1992); https://doi.org/10.1117/12.130533

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