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US 7,508,009 B2Granted
Electrochromic device based on nanocrystalline materials
AssigneeNtera Limited
InventorsMarten Edwards, Anders Hagfeldt, Gerrit Boschloo, Sten-Erik Lindqvist
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Abstract
An electrochromic device, comprising a first electrode (3), a second electrode (5) and an electrolyte (4) separating the electrodes (3, 5), where at least one of said first and second electrodes includes an electrically active structure which have an at least dual state visual appearance depending on the potential difference between the first and the second electrode.
Claims12
An electrochromic device, comprising a first electrode, a second electrode and an electrolyte separating the electrodes,
- wherein said first electrode comprises an electrically active structure which has an at least dual state visual appearance depending on the potential difference between the first and the second electrode;
- wherein said second electrode comprises a nanostructured conducting or semiconducting film, which does not have a redox active species added to the surface;
- and
- wherein said second electrode together with the electrolyte are arranged for supporting a capacitive charge compensation by charging of an interface between said second electrode and the electrolyte by an accumulation of a quantity of positive and negative charges at either side of said interface.
1 more element
Dependencies are inferred from the claim text.