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Electrochromic devices

  • US 8,758,575 B2
  • Filed: 09/26/2012
  • Issued: 06/24/2014
  • Est. Priority Date: 04/30/2010
  • Status: Active Grant
First Claim
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1. A method of fabricating an electro chromic device, the method comprising:

  • forming an electrochromic layer comprising an electrochromic material;

    forming a counter electrode layer in contact with the electro chromic layer without first providing an ion conducting electronically insulating layer between the electro chromic layer and the counter electrode layer, wherein the counter electrode layer comprises a counter electrode material; and

    forming an interfacial region between the electro chromic layer and the counter electrode layer, formed using components of one or both the electrochromic layer and counter electrode layer, wherein said interfacial region is substantially ion conducting and substantially electronically insulating.

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