Low emissivity glass comprising dielectric layer and method for producing the same

摘要

Provided is low emissivity glass including a low emissivity layer containing electrically conductive metal; and a composite metal oxide formed on one or both sides of the low emissivity layer and expressed by a following chemical formula 1:
TiCeOx  (1)wherein Ti is titanium element, Ce is cerium element, and Ox is oxide. Since the dielectric layer which serves as protecting low emissivity layer of low emissivity glass and reducing emissivity contains the composite metal oxide expressed by the above chemical formula 1, visible light transmissivity can be greatly increased with excellent low emissivity.

主权项

1. A low emissivity glass comprising:
a low emissivity layer containing electrically conductive metal; a dielectric layer comprising a composite metal oxide formed on one side of the low emissivity layer; a dielectric layer comprising a composite metal oxide formed on the other side of the low emissivity layer, wherein the composite metal oxide in the dielectric layers is expressed by a following chemical formula 1:
TiCeOx  [Chemical Formula 1] wherein Ti is titanium element, Ce is cerium element, and Ox is an oxide, wherein the composite metal oxide comprises 85 to 90% titanium oxide and 10 to 15% cerium oxide by weight, wherein an emissivity of the low emissivity glass is 0.01 to 0.3, and visible light transmissivity of the low emissivity glass is 75% or more, and the thickness of the low emissivity layer is 8 to 35 nm, and wherein the dielectric layers each have a refractive index of 2.4 to 2.8, for visible light.