Anti-reflection glass made from aged sol including mixture of tri-alkoxysilane and tetra-alkoxysilane

A method of making a coated article including an anti-reflection coating on a substrate, the method comprising:

• mixing at least a tri-alkoxysilane based binder with a tetra-alkoxysilane based binder and silica based nanoparticles in forming a wet coating formulation;
• aging the wet coating formulation at least about ten days so as to provided an aged wet coating formulation;
• coating at least a portion of said aged wet coating formulation onto the glass substrate to form a coating;
• and
• curing the coating.

A method of making a coated article including an anti-reflection coating on a substrate, the method comprising:

• mixing at least a tri-alkoxysilane based binder and a tetra-alkoxysilane based binder with at least silica based nanoparticles and a solvent in forming a coating sol formulation;
• aging the coating sol formulation for a period of time sufficient for both hydrolysis and condensation to occur so as to provide an aged coating sol formulation;
• coating at least a portion of said aged coating sol formulation onto the glass substrate to form a coating;
• and
• heating said glass substrate and said coating.