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Elaboration et étude de couches minces électrochromes déposées par pulvérisation cathodique. Mise en oeuvre de démonstrateurs sur substrat flexible

Abstract : The aim of this thesis was to study flexible electrochromic devices. They can modulate their visible and near infra-red transmittance under polarization. They are constituted of a stack of thin layers : i.) an electrochromic active layer based on nanocrystaline WO3, coloured under cathodic bias, ii.) a lithium-ion conducting electrolyte which can be based either on photopolymerizable organic constituents, or on an inorganic film (LiPON), iii.) an ion storage counter electrode, which can be either an anodic colouring material such as nanocrystalline ‘‘LixNi0.5O'', or an optically passive oxide such as nanocristalline lamellar ‘‘V2O5/TiO2''. This set of layers is sandwiched between two transparent conductive electrodes deposited on polyethyleneterephtalate flexible substrates. Electrochromic layers and inorganic electrolyte were deposited by cathodic sputtering. Correlation between deposition parameters, electrochromic properties and structural properties were established.
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Submitted on : Wednesday, March 17, 2004 - 6:38:17 PM
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Catherine Brigouleix. Elaboration et étude de couches minces électrochromes déposées par pulvérisation cathodique. Mise en oeuvre de démonstrateurs sur substrat flexible. Matériaux. Université Sciences et Technologies - Bordeaux I, 2004. Français. ⟨tel-00005358⟩

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