Low transparency copper oxide coating for electrochromic device
US5585959A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1993 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Jan 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1524
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Low transparency, or colored, copper oxide is taught as a new electrochromic material, in combination with a metallic oxide. The material is formed by application of the copper oxide to a substrate followed by application of the metallic oxide. A low-E glass substrate is heated, and cupric acetylacetonate powder is sprayed at the glass; the cupric acetylacetonate powder is atomized with dry oxygen. The glass/SN.sub.N O.sub.2 F/Cu.sub.x O system is then re-heated. After reheating, tungsten hexachloride dissolved in N,N-dimethyl formamide is sprayed at the copper oxide on the substrate. In a sample material, visible transmission is improved from 33% for copper oxide alone, to 65%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.