Reduction of haze in tin oxide transparent conductive coatings on glass
First Claim
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1. A haze-reducing coating on a conductive doped tin oxide film on a substrate formed by:
- providing a glass substrate having a conductive doped tin oxide film disposed on a surface thereof, said conductive doped tin oxide substrate having said film thereon exhibiting haze;
providing a coating solution of a metallic oxide precursor in a suitable carrier solvent, said metallic oxide precursor being selected to form one of;
1) an oxide of an element selected from the group consisting of tungsten, molybdenum, manganese, chromium, rhenium, iridium, zinc, nickel, indium, tin, titanium, zirconium, vanadium, and silicon and
2) a mixed oxide including an oxide of an element selected from the group consisting of tungsten, molybdenum, manganese, chromium, rhenium, iridium, zinc, nickel, indium, tin, titanium, zirconium, vanadium, and silicon;
coating said conductive doped tin oxide film on said substrate surface with said coating solution by a wet chemical solution deposition process to form a coating of a desired thickness; and
removing said solvent and converting said precursor to a solid-state metal oxide film overlying said conductive doped tin oxide film to reduce the haze present in said conductive film on said substrate surface.
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Abstract
The haze in a conductive tin oxide coating deposited on a substrate, particularly glass, can be reduced by applying, to a desired thickness, a solid-state coating, where the solid-state layer is applied as a precursor liquid to the tin oxide layer, is then dried and/or converted to a solid-state film overlying the conductive tin oxide film on the substrate.
32 Citations
31 Claims
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1. A haze-reducing coating on a conductive doped tin oxide film on a substrate formed by:
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providing a glass substrate having a conductive doped tin oxide film disposed on a surface thereof, said conductive doped tin oxide substrate having said film thereon exhibiting haze;
providing a coating solution of a metallic oxide precursor in a suitable carrier solvent, said metallic oxide precursor being selected to form one of;
1) an oxide of an element selected from the group consisting of tungsten, molybdenum, manganese, chromium, rhenium, iridium, zinc, nickel, indium, tin, titanium, zirconium, vanadium, and silicon and
2) a mixed oxide including an oxide of an element selected from the group consisting of tungsten, molybdenum, manganese, chromium, rhenium, iridium, zinc, nickel, indium, tin, titanium, zirconium, vanadium, and silicon;
coating said conductive doped tin oxide film on said substrate surface with said coating solution by a wet chemical solution deposition process to form a coating of a desired thickness; and
removing said solvent and converting said precursor to a solid-state metal oxide film overlying said conductive doped tin oxide film to reduce the haze present in said conductive film on said substrate surface. - 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, 24, 25)
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26. A haze-reducing coating on a substrate having a conductive doped tin oxide film on a surface thereof formed by:
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providing a glass substrate having a conductive doped tin oxide film disposed on a surface of said substrate, providing a solid-state precursor in liquid form, said solid-state precursor in liquid form being selected to form one of;
1) a solid-state oxide of an element selected from the group consisting of tungsten, molybdenum, manganese, chromium, rhenium, iridium, zinc, nickel, indium, tin, titanium, zirconium, vanadium, and silicon, and
2) a mixed solid-state oxide including a solid-state oxide of an element selected from the group consisting of tungsten, molybdenum, manganese, chromium, rhenium, iridium, zinc, nickel, indium, tin, titanium, zirconium, vanadium, and silicon;
coating said conductive doped tin oxide film on said substrate surface with said precursor liquid by a wet chemical coating deposition process; and
converting said precursor liquid to a solid-state film overlying said conductive doped tin oxide film to reduce the haze present in said conductive doped tin oxide film on said substrate surface. - View Dependent Claims (27)
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28. A haze-reducing coating on a substrate having a conductive doped tin oxide film on a surface thereof formed by:
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providing a glass substrate having a conductive doped tin oxide film disposed on a surface of said substrate;
providing a solid-state precursor in liquid form;
coating said conductive doped tin oxide film on said substrate surface with said precursor liquid by a wet chemical coating deposition process selected from the group consisting of dip coating, spin coating, spray deposition and casting; and
converting said precursor liquid to a solid-state film overlying said conductive doped tin oxide film to reduce the haze present in said conductive doped tin oxide film on said substrate surface;
said precursor liquid comprising a carbon polymer precursor.- View Dependent Claims (29, 30, 31)
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Specification