Method for depositing electrochromic layers
First Claim
1. A method for preparing an electrochromic coating on a substrate having an electrically conductive surface comprising:
- providing a substrate having an electrically conductive surface;
reacting a transition metal with hydrogen peroxide and an organic acid to form a transition metal-peroxy acid product and reacting said transition metal-peroxy acid product with a lower carbon alcohol to form a peroxyester-transition metal derivative;
coating the conductive surface of said substrate with said peroxyester-transition metal derivative to give a coating of a desired thickness; and
converting said coating to an electrochromically active coating.
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Accused Products
Abstract
Electrochromic coating solutions are prepared by reacting a transition metal with a mixture of hydrogen peroxide and an organic acid. The resulting transition metal-peroxy acid product is esterified by reacting with lower carbon alcohols to produce a peroxyester-transition metal derivative. This derivative in solution in lower carbon alcohols provides a working solution into which a substrate having a conductive surface is preferably dipped and removed at a rate sufficient to give a coating of a desired thickness over the conductive surface. Spray or spin coating can be used to apply the coating to the conductive surface of the substrate. The coating is then dried and is externally fired in an oven to complete the necessary reactions to yield an electrochromic oxide coating having exceptional electrochromic properties.
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Citations
51 Claims
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1. A method for preparing an electrochromic coating on a substrate having an electrically conductive surface comprising:
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providing a substrate having an electrically conductive surface; reacting a transition metal with hydrogen peroxide and an organic acid to form a transition metal-peroxy acid product and reacting said transition metal-peroxy acid product with a lower carbon alcohol to form a peroxyester-transition metal derivative; coating the conductive surface of said substrate with said peroxyester-transition metal derivative to give a coating of a desired thickness; and converting said coating to an electrochromically active coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for preparing an electrochromic coating on a substrate having an electrically conductive surface comprising:
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providing a substrate having an electrically conductive surface; reacting tungsten with hydrogen peroxide and acetic acid to form a tungsten peroxy acid product, and reacting said tungsten peroxy acid product with a lower carbon alcohol to form a peroxyester-tungsten derivative; coating the conductive surface of said substrate with said peroxyester-tungsten derivative to give a coating of a desired thickness; and converting said coating to an electrochromically active coating. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for preparing an inorganic oxide coating on a substrate comprising:
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providing a substrate having a surface; reacting a transition metal with hydrogen peroxide and an organic acid to form a transition metal-peroxy acid product; reacting said transition metal peroxy acid product with a lower carbon alcohol to form a peroxyester-transition metal derivative; providing a coating solution of said peroxyester-transition metal derivative dissolved in an organic solvent; coating said surface of said substrate with said solution to give a coating of desired thickness; and converting said coating to an inorganic oxide. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification