Electrochromic devices
First Claim
1. A method of fabricating an electrochromic device, the method comprising:
- (a) forming either an electrochromic layer including an electrochromic material or a counter electrode layer including a counter electrode material;
(b) forming an intermediate layer over the electrochromic layer or the counter electrode layer, where the intermediate layer includes an oxygen rich form of at least one of the electrochromic material, the counter electrode material, and an additional material, where the additional material includes distinct electrochromic or counter electrode material, the intermediate layer in a state that is not substantially electronically insulating;
(c) forming the other of the electrochromic layer and the counter electrode layer; and
(d) converting at least a portion of the intermediate layer from the state that is not substantially electronically insulating to a state that is substantially electronically insulating.
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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
14 Claims
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1. A method of fabricating an electrochromic device, the method comprising:
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(a) forming either an electrochromic layer including an electrochromic material or a counter electrode layer including a counter electrode material; (b) forming an intermediate layer over the electrochromic layer or the counter electrode layer, where the intermediate layer includes an oxygen rich form of at least one of the electrochromic material, the counter electrode material, and an additional material, where the additional material includes distinct electrochromic or counter electrode material, the intermediate layer in a state that is not substantially electronically insulating; (c) forming the other of the electrochromic layer and the counter electrode layer; and (d) converting at least a portion of the intermediate layer from the state that is not substantially electronically insulating to a state that is substantially electronically insulating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification