Abstract:
A protective coating is applied to the electrically conductive surface of a reflective coating of a solar mirror by biasing a conductive member having a layer of a malleable electrically conductive material, e.g. a paste, against a portion of the conductive surface while moving an electrodepositable coating composition over the conductive surface. The moving of the electrodepositable coating composition over the conductive surface includes moving the solar mirror through a flow curtain of the electrodepositable coating composition and submerging the solar mirror in a pool of the electrodepositable coating composition. The use of the layer of a malleable electrically conductive material between the conductive member and the conductive surface compensates for irregularities in the conductive surface being contacted during the coating process thereby reducing the current density at the electrical contact area.
Abstract:
A glass sheet has an electrically conductive film having a sheet resistance in the range of 9.5 to 14.0 ohms/square; an emissivity in the range of 0.14 to 0.17 and an absorption coefficient of greater than 1.5 x10 3 cm -1 in the wavelength range of 400-1100 nanometers, and a surface roughness of less than 15 nanometers Root Means Square. A glass sheet of another embodiment of the invention has an electrically conductive film having a phosphorous-fluorine doped tin oxide pyrolytically deposited film on the surface of the glass sheet, wherein the ratio of phosphorous precursor to tin precursor is in the range of greater than 0-0.4. The coated glass sheets of the invention can be used in the manufacture of multi sheet insulating units, OLEDs and solar cells.
Abstract:
A coated article includes a pyrolytic applied transparent electrically conductive oxide film of niobium doped titanium oxide. The article can be made by using a coating mixture having a niobium precursor and a titanium precursor. The coating mixture is directed toward a heated substrate to decompose the coating mixture and to deposit a transparent electrically conductive niobium doped titanium oxide film on the surface of the heated substrate. In one embodiment of the invention, the method is practiced using a vaporized coating mixture including a vaporized niobium precursor; a vaporized titanium precursor, and a carrier gas to deposit a niobium doped titanium oxide film having a sheet resistance greater than 1.2 and an index of refraction of 2.3 or greater. The chemical formula for the niobium doped titanium oxide is Nb:TiO X where X is in the range of 1.8-2.1.
Abstract:
A coating apparatus includes non-orthogonal coater geometry to improve coatings on a glass ribbon, and to improve yields of such coatings. The apparatus includes a first arrangement to move the ribbon along a first imaginary straight line (23) through a coating zone provided in a glass forming chamber. The coater has a coating nozzle (80) and an exhaust slot, (83) each have a longitudinal axis. The coating nozzle (80) directs coating vapors toward the coating zone, and the exhaust slot (82) removes vapors from the coating zone. A second arrangement mounts the coater in spaced relation to the path with the coating nozzle (80) and the exhaust slot (82) facing the coating zone. A second imaginary straight line (94) is normal to the longitudinal axis of the coating nozzle (80), and the first imaginary line (23) and the second imaginary line (94) suspend an angle in the range of greater than zero degrees to 90 degrees.
Abstract:
A solar reflective mirror includes a parting film between solar reflecting sublayers to improve optics and stability of the solar mirror. The coating stack of the solar reflector mirror is encapsulated to increase the useable life of the solar mirror, and to eliminate the need for a permanent protection overcoat. Omission of the PPO film which is electrically non-conductive makes the coating stack electrically conductive eliminating the need for a two layer encapsulant when the encapsulant is e-coated. Another feature of the invention is applying the base coat of the encapsulant over the marginal edges of the PPO film leaving a center section without coverage and adding the top coating of the encapsulant over the base coat and the uncoated area.
Abstract:
The present invention relates to a glass composition that includes: 57 to 75 percent by weight of SiO 2 ; 3 to 11 percent by weight of Al 2 O 3 ; 6 to 11 percent by weight of Na 2 O; 16 to 21 percent by weight of CaO; 0.01 to 0.1 percent by weight of Li 2 O; and less than 0.05 percent by weight of K 2 O. Each percent by weight is based on total weight of the glass composition. Glass products are also provided that have a bulk glass composition as described above. The glass products, such as flat glass products and glass substrates, have a strain point of at least 590°C and a thermal expansion of at least 7.4 ppm/°C. The present invention also relates to magnetic recording articles and photovoltaic cells that include a glass substrate that has a bulk glass composition as described above.
Abstract:
An optoelectronic device (10) includes a first substrate (12) having a first surface (14) and a second surface (16); an underlayer (18) located over the second surface (16); a first conductive layer (20) over the underlayer (18); an overlayer (22) over the first conductive layer (20); a semiconductor layer (24) over the first conductive layer (20); and a second conductive layer (26) over the semiconductor layer (24). The first conductive layer (20) includes a conductive oxide and at least one dopant selected from the group consisting of tungsten, molybdenum, niobium, and fluorine; and/or the overlayer (22) includes a buffer layer (42) including tin oxide and at least one material selected from the group consisting of zinc, indium, gallium, and magnesium.
Abstract:
A float glass system (10) includes a float bath (14) having a pool of molten metal (16). A chemical vapor deposition coater (32) is located in the float bath (14) above the pool of molten metal (16). The coater (32) includes at least one low-coherence interferometry probe (38) located in or on the coater (32) and connected to a low-coherence interferometry system (36). Another low-coherence interferometry probe 138 can be located outside an exit end of the float bath (14) and connected to the same or another low-coherence interferometry system (36).
Abstract:
The present invention relates to reflective articles, such as solar mirrors, that include a sacrificial cathodic layer. The reflective article, more particularly includes a substrate (41), such as glass, having a multi - layered coating thereon that includes a lead- free sacrificial cathodic layer (29). The sacrificial cathodic layer (29) includes at least one transition metal, such as a particulate transition metal, which can be in the form of flakes (e.g., zinc flakes). The sacrificial cathodic layer can include an inorganic matrix formed from one or more organo - titanates. Alternatively, the sacrificial cathodic layer can include an organic polymer matrix (e.g., a crosslinked organic polymer matrix formed from an organic polymer and an aminoplast crosslinking agent). The reflective article also includes an outer organic polymer coating (32), that can be electrodeposited over the sacrificial cathodic layer (29).