Articles including anticondensation coatings and/or methods of making the same
View Patent ↗Certain example embodiments of this invention relate to articles including anticondensation coatings that are exposed to an external environment, and/or methods of making the same. In certain example embodiments, the anticondensation coatings may be survivable in an outside environment. The coatings also may have a sufficiently low sheet resistance and hemispherical emissivity such that the glass surface is more likely to retain heat from the interior area, thereby reducing (and sometimes completely eliminating) the presence condensation thereon. The articles of certain example embodiments may be, for example, skylights, vehicle windows or windshields, IG units, VIG units, refrigerator/freezer doors, and/or the like.
1. A laminated coated article, for use in a window, comprising:
a coating supported by a first glass substrate,
a second glass substrate,
wherein the first and second glass substrates are laminated,
wherein:
the coating comprises the following thin-film layers moving away from the first glass substrate:
a dielectric layer comprising silicon nitride;
a transparent conductive layer comprising indium tin oxide (ITO),
a silicon-inclusive contact layer located over and directly contacting the transparent conductive layer comprising indium tin oxide (ITO),
a protective layer comprising oxygen and aluminum, the protective layer comprising oxygen and aluminum being located over and directly contacting the silicon-inclusive contact layer;
wherein the protective layer comprising oxygen and aluminum is the outermost layer of the coating and is to be exposed to an environment adjacent the window;
wherein the coating is disposed on a surface of the first glass substrate so that the first glass substrate is located between the coating and the second glass substrate, and wherein the coating is not located between the first and second glass substrates, and
wherein the coating has a hemispherical emissivity of less than 0.23 and a sheet resistance of less than 30 ohms/square.
2. The coated article of claim 1 , wherein the coated article has a visible transmission of at least 70%.
3. The coated article of claim 1 , wherein the transparent conductive layer comprising indium tin oxide (ITO) is located over and directly contacting the dielectric layer comprising silicon nitrde.
4. The coated article of claim 3 , wherein the coating further comprises another dielectric layer located between the glass substrate and the dielectric layer comprising silicon nitride.
5. The coated article of claim 1 , wherein the transparent conductive layer consists essentially of ITO.