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US 12,631,926 B2Granted
Counter electrode for electrochromic devices
AssigneeView Operating Corporation
InventorsDane Gillaspie, Sridhar K. Kailasam, Robert T. Rozbicki
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Abstract
The embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically coloring layer in an electrochromic stack or device is fabricated to include nickel-tungsten-niobium-oxide (NiWNbO). This material is particularly beneficial in that it is very transparent in its clear state.
Claims16
A method of fabricating an electrochromic stack, the method comprising:
- forming a cathodically coloring layer comprising a cathodically coloring electrochromic material;
- and
- forming an anodically coloring layer comprising nickel-tungsten-niobium-oxide (NiWNbO),
- wherein the NiWNbO has an atomic ratio of Ni:(W+Nb) that is between about 1.5:1 and 2.5:1 or between about 2:1 and 3:1, and
- wherein the NiWNbO has an atomic ratio of W:
- Nb that is between about 0.2:1 and 1:1.
3 more elements
An electrochromic stack, comprising:
- a cathodically coloring layer comprising a cathodically coloring material;
- and
- an anodically coloring layer comprising nickel-tungsten-niobium-oxide (NiWNbO),
- wherein the NiWNbO has an atomic ratio of Ni:
- (W+Nb) that is between about 1.5:1 and 2.5:1 or between about 2:1 and 3:1, and
- wherein the NiWNbO has an atomic ratio of W:Nb that is between about 0.2:1 and 1:1.
3 more elements
Dependencies are inferred from the claim text.