Coated article with high visible transmission and low emissivity

A coated article comprising:

• a substrate;
• a first dielectric layer supported by the substrate;
• a lower contact layer comprising zinc oxide;
• an infrared (IR) reflecting layer comprising silver;
• an upper contact layer comprising at least one of an oxide of nickel, an oxide of chromium, and nickel chrome oxide;
• and
• wherein the IR reflecting layer comprising silver is located between and in contact with the lower and upper contact layers.

An insulating glass (IG) window unit comprising:

• first and second substrates spaced from one another,
• a coating supported by the first substrate, the coating including first and second IR reflecting layers, each of the IR reflecting layers being sandwiched between and contacting a respective pair of contact layers;
• wherein the coating has a sheet resistance (Rs) no greater than 3.5 ohms/square;
• and
• wherein the IG window unit has a visible transmission of at least 70%, a solar heat gain coefficient (SHGC) no greater than 0.45, and outside reflective color characterized by a*outside reflective from −3.0 to 2.0 and b*outside reflective from −5.0 to 1.0.

A coated article comprising:

• a coating or layer system supported by a glass substrate, the coating or layer system comprising from the glass substrate outwardly:
• a) a dielectric layer(s);
• b) a zinc oxide inclusive contact layer;
• c) a silver inclusive layer;
• d) a contact layer including at least one of nickel oxide and chrome oxide;
• e) a dielectric layer(s);
• f) a zinc oxide inclusive contact layer;
• g) a silver inclusive layer;
• h) a contact layer;
• and
• i) a dielectric layer(s);
• wherein the coated article has a visible transmission of at least about 70% and the coating or layer system has a sheet resistance (Rs) no greater than 5.0 ohms/square.

A method of making a coated article, the method comprising:

• providing a substrate;
• sputtering a first dielectric layer onto the substrate;
• sputtering a lower contact layer comprising zinc oxide onto the substrate over the first dielectric layer;
• sputtering an infrared (IR) reflecting layer over the lower contact layer;
• sputtering an upper contact layer comprising at least one of an oxide of nickel, an oxide of chromium, and nickel chrome oxide, onto the substrate over and in contact with the IR reflecting layer;
• and
• sputtering at least one dielectric layer onto the substrate over the upper contact layer.

A coated article comprising:

• a substrate;
• a first dielectric layer supported by the substrate;
• an infrared (IR) reflecting layer comprising silver;
• an upper contact layer comprising at least one of an oxide of nickel, an oxide of chromium, and nickel chrome oxide;
• another dielectric layer comprising tin oxide provided over and in contact with the upper contact layer;
• and
• another dielectric layer comprising silicon nitride provided over the another dielectric layer comprising tin oxide.