Electrochemical devices and methods of forming same
AssigneeSage Electrochromics, Inc.
InventorsYan WANG, Robert Newcomb, Théo Nathan Ferdinand Chevallier, Ryan T. Allen
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Abstract
An electrochemical device is disclosed. The electrochemical device can include a first transparent conductive layer, a second transparent conductive layer, an electrochromic layer between the first transparent conductive layer and the second transparent conductive layer, a counter electrode layer having a thickness of greater than 300 nm and between the first transparent conductive layer and the second transparent conductive layer, a switching speed parameter of not greater than 0.68 s/mm at 23° C., and a color of less than 3b* in a tint state.
Claims20
An electrochromic device, comprising:
- a first transparent conductive layer;
- a second transparent conductive layer;
- an electrochromic layer between the first transparent conductive layer and the second transparent conductive layer;
- a counter electrode layer between the first transparent conductive layer and the second transparent conductive layer having a thickness of greater than 300 nm;
- a switching speed parameter of not greater than 0.68 s/mm, such as 0.6 s/mm, no greater than 0.5 s/mm, or no greater than 0.4 s/mm at 23° C.;
- and a color of less than 3b* in a tint state.
A method of forming an electrochromic device comprising:
- depositing a first transparent conductive layer on a substrate;
- depositing an electrochromic layer on the first conductive layer at a temperature of less than 220° C.;
- depositing a counter electrode layer on the electrochromic layer, wherein the counter electrode layer comprises a thickness of greater than 300 nm;
- and
- depositing a second transparent conductive layer on the counter electrode layer.
Dependencies are inferred from the claim text.