Patent ID: 8445774
Filing Date: 2013-05-21
Classification: C03C,H01L,Y02E,Y02P

Abstract:
1. A method of making a low-index silica based coating, the method comprising: forming a silica precursor comprising (a) a radiation curable composition comprising a radiation curable monomer and a photoinitiator, and (b) a silica sol comprising a silane and/or a colloidal silica; depositing the silica precursor on a glass substrate to form a coating layer; curing the coating layer using at least exposure to electromagnetic radiation; and after said curing, firing the coating layer in an oven at a temperature of from about 550 to 700° C. for a duration of from about 1 to 10 minutes, to form the low-index silica based coating, wherein the low-index silica based coating has a refractive index that is lower than a refractive index of the glass substrate.