Patent ID: 8237047
Filing Date: 2012-08-07
Classification: C03C,C09D,H01L,Y02E

Abstract:
1. A method of making a photovoltaic device including an antireflective coating, the method comprising: forming a polymeric component comprising silica by mixing at least one silane with one or more of a first solvent, a first catalyst, and/or water; forming a silica sol by mixing the polymeric component with colloidal silica and/or a second solvent; forming a combined sol gel by mixing the silica sol with at least one siloxane, wherein the siloxane comprises from about 0.1 to 10% by weight of the combined sol gel; casting the combined sol gel to form a first layer on a glass substrate; curing and heat treating the first layer, wherein said heat treating takes place at a temperature of from about 600° C. to about 700° C., and forming a second layer comprising silicon oxide over the first layer, in making the photovoltaic device, and wherein a critical scratch load of the antireflective coating is from about 20 to 50 mN, in making the photovoltaic device.