Claims
- 1. An electrochromic device comprising a layer of electrochromic material in contact with an ion-supplying electrolyte layer and conductors for applying an electrical potential across an interface between said layer of electrochromic material and said ion-supplying electrolyte layer, where in said electrochromic material comprises doped tin oxide particles.
- 2. A device according to claim 1 wherein said electrochromic material comprises antimony-doped, tin oxide particles on a substrate of or in admixture with a white or pastel pigment.
- 3. A method of producing an electrochromic contrast ratio greater than 1.2 by applying an electrochemical potential to doped tin oxide particles in contact with mobile ions.
- 4. A device according to claim 1, wherein said electrochromic material comprises niobium-doped tin oxide particles on a substrate of or in admixture with a white or pastel pigment.
Parent Case Info
This is a divisional of application Ser. No. 08/773,210; filed on Dec. 23, 1996 now U.S. Pat. No. 5,876,634 which claims priority to Provisional application Ser. No. 60/009,226 filed Dec. 26, 1995.
US Referenced Citations (30)
Foreign Referenced Citations (2)
Number |
Date |
Country |
966923 |
Apr 1975 |
CAX |
1154 135 |
Sep 1983 |
CAX |
Divisions (1)
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Number |
Date |
Country |
Parent |
773210 |
Dec 1996 |
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