Ion-beam based deposition of coatings for electrochromic devices
First Claim
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1. An electrochromic device comprising:
- a light transmissive substrate having a first layer of electrically-conductive material deposited thereon by thermal evaporation;
a layer of tungsten oxide deposited on said first layer by thermal evaporation of tungsten oxide within a stream of oxygen or argon ions;
a layer of ion conductive-electron resistive material deposited on said tungsten oxide by thermal evaporation;
a counter-electrode layer deposited on said electron resistive-ion conductive layer by thermal evaporation; and
a second layer of electrically-conductive material on said counter-electrode layer by thermal evaporation.
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Abstract
Thin film coatings for solid state storage batteries and electrochromic energy conservation devices are now formed on low temperature glass and plastic substrates by an ion-assisted RF deposition process. The attachment of such coated glass or plastic substrates to existing windows in situ allows ordinary plate glass windows in homes, office buildings and factories to be converted to "smart-windows" resulting in a substantial savings in heating and air conditioning costs.
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Citations
5 Claims
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1. An electrochromic device comprising:
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a light transmissive substrate having a first layer of electrically-conductive material deposited thereon by thermal evaporation; a layer of tungsten oxide deposited on said first layer by thermal evaporation of tungsten oxide within a stream of oxygen or argon ions; a layer of ion conductive-electron resistive material deposited on said tungsten oxide by thermal evaporation; a counter-electrode layer deposited on said electron resistive-ion conductive layer by thermal evaporation; and a second layer of electrically-conductive material on said counter-electrode layer by thermal evaporation. - View Dependent Claims (2, 3, 4, 5)
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Specification