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Heat treatment of amorphous electrochromic WO3 thin films deposited onto indium-tin oxide substrates

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Abstract

Electrochromic tungsten oxide thin films, obtained by vacuum evaporation, were studied before and after heat treatment between 25 and 250°C for 2 h in air. Electrochromic properties were investigated in acid electrolyte by simultaneous measurements of the electrical and optical parameters. A.c. complex impedance techniques and voltammetry were used to characterize the films from an electrical point of view. We observed an enhancement of the electrochromic response times during both coloration and bleaching after heat treatment carried out between 150 and 220°C. This phenomenon was associated with a decrease of the ohmic drop in the electrode and a continuous variation of the impedance diagrams of these electrochromic electrodes. Moreover, we observed that the diffusion coefficient of H+ ions into WO3, obtained on colored thin films, increased as the electrochromic kinetics increased.

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References

  1. C. Bohnke, Proc. 4th Int. Conf. on Solid State Ionics (1983) Vol. 9/10, p. 353.

    Google Scholar 

  2. O. Bohnke, C. Bohnke, G. Robert, B. Carquille and J. Ch. Vienot,Onde Electrique 10 (1981) 15.

    Google Scholar 

  3. C. Bohnke, Thesis, University of Besançon (1986).

  4. C. Ho, I. D. Raistrick and R. A. Huggins,J. Electrochem. Soc. 127 (1980) 343.

    Google Scholar 

  5. J. P. Randin and R. Viennet,J. Electrochem. Soc. 129 (1982) 2349.

    Google Scholar 

  6. D. R. Franceschetti and J. R. MacDonald,J. Electrochem. Soc. 127 (1980) 1754.

    Google Scholar 

  7. S. H. Glarum and J. H. Marshall,J. Electrochem. Soc. 127 (1980) 1467.

    Google Scholar 

  8. I. Rubinstein, J. Rishpon and S. Gottesfeld,J. Electrochem. Soc. 133 (1986) 730.

    Google Scholar 

  9. H. R. Zeller and H. U. Beyeler,J. Appl. Phys. 13 (1977) 231.

    Google Scholar 

  10. G. G. Barna,J. Electron. Mater. 8 (1979) 153.

    Google Scholar 

  11. P. Schlotter and L. Pickelmann,J. Electron. Mater. 11 (1982) 207.

    Google Scholar 

  12. C. Engelmann, M. Loeuillet and O. Bohnke,J. Trace Microprobe Tech. 4 (1986) 93.

    Google Scholar 

  13. S. S. Sun, PhD, University of Florida (1983).

  14. O. Bohnke, C. Bohnke and B. Carquille, Rapport M.I.R. Action ‘Composants Passifs’ no 82.A.0779 (1984).

  15. N. Yoshika, M. Ayusawa and S. Kondo,J. Electrochem. Soc. 131 (1984) 2600.

    Google Scholar 

  16. J. G. Thevenin and R. H. Muller,J. Electrochem. Soc. 134 (1987) 273.

    Google Scholar 

Download references

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Authors and Affiliations

  1. Laboratoire d'Electrochimie des Solides U.A.436 C.N.R.S., Université de Franche-Comté U.F.R. des Sciences et Techniques, 25030, Besancon Cedex, France

    Cl. Bohnke & O. Bohnke

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  1. Cl. Bohnke
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  2. O. Bohnke
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Bohnke, C., Bohnke, O. Heat treatment of amorphous electrochromic WO3 thin films deposited onto indium-tin oxide substrates. J Appl Electrochem 18, 715–723 (1988). https://doi.org/10.1007/BF01016898

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  • DOI: https://doi.org/10.1007/BF01016898

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