Electrochromic and photochromic material and a method of fabrication of said material
US4096087A · kind A · utility
3Cited by
2References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 7, 1977 |
| Grant date | Jun 20, 1978 |
| Priority date | — |
| Expiry date | Mar 7, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/705
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The material is constituted by a sub-stoichiometric amorphous oxide doped by hydrogen corresponding to the formula MO.sub.x H.sub.y, where M is a metal of group VI such as tungsten, with 2.6 < x < 2.8 and 0.3 < y < 0.6. The method of fabrication of the material involves a cathodic reactive sputtering operation which is carried out by subjecting a target having a base of a metal of group VI such as tungsten or a metal oxide to an ion bombardment in the presence of a reactive gas which consists in particular of oxygen and hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.