Diffusion barrier of sol-gel derived silica for sprayed tin oxide film on soda-lime glass

Abstract
Diffusion barriers of silica were deposited on soda-lime glass using a sol-gel technique. The migration of sodium from the glass through these layers and into a spray-pyrolyzed layer of fluorine-doped tin oxide was studied by SIMS depth profiling. The silica layer reduced sodium in the tin oxide overlayer by two orders of magnitude.