Coated article with oxides and/or oxynitrides of antimony and/or zinc dielectric layer(s) and corresponding method
View Patent ↗Certain embodiments of this invention relates to a coated article including a substrate (e.g., glass substrate) which supports a coating thereon, wherein the coating includes at least one layer of or including SbO x N y . This layer is desirable for blocking (reflection and/or absorption) of at least some ultraviolet (UV) radiation. In certain example embodiments of this invention, the layer of SbO x N y may be used as a dielectric layer in a low-E (low-emissivity) coating, and may improve UV-blocking capability of such a low-E coating. Coated articles in certain example embodiments of this invention may be used in the context of windows.
1. An insulating glass (IG) window unit comprising:
first and second glass substrates, and a gap provided between the first and second glass substrates;
a UV blocking coating provided on a surface of the first glass substrate closest to the gap;
a low-E coating provided on a surface of the second glass substrate closest to the gap, the low-E coating including at least one infrared (IR) reflecting layer sandwiched between at least first and second dielectric layers; and
wherein the UV blocking coating comprises at least one layer comprising SbO x N y , where x is from about 1 to 3, and y is from about 0.05 to 0.3.
2. The IG window unit of claim 1 , wherein x is from about 1.3 to 2.5, and y is from about 0 to 0.4.
3. The IG window unit of claim 1 , wherein x is from about 1.5 to 2.5, and y is from about 0 to 0.3.
4. The IG window unit of claim 1 , wherein x is from about 1.6 to 2.2.
5. The IG window unit of claim 1 , wherein said layer comprising SbO x N y has more oxygen than nitrogen.
6. The IG window unit of claim 1 , wherein at least one of the dielectric layers of the low-E coating comprises SbO x N y where x is from about 1 to 3, y is from about 0 to 0.5.
7. The IG window unit of claim 1 , wherein the IG window unit has a visible transmission of at least about 60%, and a UV transmission of no more than about 7%.
8. The IG window unit of claim 1 , wherein the IG window unit has a visible transmission of at least about 60%, and a UV transmission of no more than about 5%.
9. The IG window unit of claim 1 , wherein the IG window unit has a visible transmission of at least about 60%, and a UV transmission of no more than about 3%.
10. The IG window unit of claim 1 , wherein each of the first and second glass substrates are heat treated.
11. The IG window unit of claim 1 , wherein each of the first and second glass substrates are thermally tempered.
12. The IG window unit of claim 1 , wherein the UV blocking coating further comprises a dielectric layer having a refractive index (n) of from about 1.6 to 1.85 provided between the first glass substrate and the layer comprising SbO x N y .
13. The IG window unit of claim 12 , wherein the dielectric layer provided between the first glass substrate and the layer comprising SbO x N Y comprises an oxide of silicon.
14. The IG window unit of claim 1 , wherein the layer comprising SbO x N y is sputter-deposited.
15. The IG window unit of claim 1 , wherein the layer comprising SbO x N y further comprises zinc.
16. An insulating glass (IG) window unit comprising:
first and second glass substrates, and a gap provided between the first and second glass substrates;
a UV blocking coating provided on a surface of the first glass substrate closest to the gap;
a low-E coating provided on a surface of the second glass substrate closest to the gap, the low-E coating including at least one infrared (IR) reflecting layer sandwiched between at least first and second dielectric layers; and
wherein the UV blocking coating comprises at least one layer comprising ZnO x N y , where x is from about 1 to 3, and y is from about 0.05 to 0.3.
17. The IG window unit of claim 16 , wherein the layer comprising ZnO x N y further comprises antimony, such that the layer includes Sb l-z Zn z O x N y , where x is from about 1 to 3, y is from about 0.05 to 0.3, and z is from 0.05 to 0.95.