Electrochromic devices
First Claim
1. An electrochromic device fabricated by a process comprising:
- (a) forming either an electrochromic layer comprising an electrochromic material or a counter electrode layer comprising a counter electrode material;
(b) forming an intermediate layer over the electrochromic layer or the counter electrode layer, where the intermediate layer includes a material that is an oxygen rich form of at least one of the electrochromic material and the counter electrode material, and wherein the intermediate layer is not electronically-insulating; and
(c) converting at least part of the intermediate layer to a region comprising an electronically-insulating and ionically-conductive material and the material of the intermediate layer, wherein the region is coextensive with an area of the intermediate layer.
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Accused Products
Abstract
Conventional electrochromic devices frequently suffer from poor reliability and poor performance. Improvements are made using entirely solid and inorganic materials. Electrochromic devices are fabricated by forming an ion conducting electronically-insulating interfacial region that serves as an IC layer. In some methods, the interfacial region is formed after formation of an electrochromic and a counter electrode layer. The interfacial region contains an ion conducting electronically-insulating material along with components of the electrochromic and/or the counter electrode layer. Materials and microstructure of the electrochromic devices provide improvements in performance and reliability over conventional devices.
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Citations
19 Claims
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1. An electrochromic device fabricated by a process comprising:
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(a) forming either an electrochromic layer comprising an electrochromic material or a counter electrode layer comprising a counter electrode material; (b) forming an intermediate layer over the electrochromic layer or the counter electrode layer, where the intermediate layer includes a material that is an oxygen rich form of at least one of the electrochromic material and the counter electrode material, and wherein the intermediate layer is not electronically-insulating; and (c) converting at least part of the intermediate layer to a region comprising an electronically-insulating and ionically-conductive material and the material of the intermediate layer, wherein the region is coextensive with an area of the intermediate layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification