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Li+ ions diffusion into sol-gel V2O5 thin films: electrochromic properties

Published online by Cambridge University Press:  04 July 2009

M. Benmoussa*
Affiliation:
Laboratoire de Physique des Solides et des Couches Minces, Département de Physique, Faculté des Sciences Semlalia, BP. 2390, Marrakech, Maroc Laboratoire Matériaux et Energies Renouvelables (LMER), Département de Physique, Faculté des Sciences, BP. 8106, Université Ibn Zohr, Agadir, Maroc
A. Outzourhit
Affiliation:
Laboratoire de Physique des Solides et des Couches Minces, Département de Physique, Faculté des Sciences Semlalia, BP. 2390, Marrakech, Maroc
A. Bennouna
Affiliation:
Laboratoire de Physique des Solides et des Couches Minces, Département de Physique, Faculté des Sciences Semlalia, BP. 2390, Marrakech, Maroc
A. Ihlal
Affiliation:
Laboratoire Matériaux et Energies Renouvelables (LMER), Département de Physique, Faculté des Sciences, BP. 8106, Université Ibn Zohr, Agadir, Maroc
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Abstract

V2O5 thin films were prepared by the sol-gel spin coating process. The Li+ ions insertion effect on optical and electrochromic properties of those films was studied. The diffusion coefficient was calculated using both cyclic voltammograms and chronoamperometric curves. The amount x of Li+ ions in Lix V2O5 was also calculated. Finally, the electrochromic performance evolution characteristics such as the reversibility, coloration efficiency, coloration memory stability and response time were studied.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 2009

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