Optical Properties of Transparent Conducting Coatings Based on an Aluminum Grid Embedded in Anodic Aluminum Oxide

The optical properties of transparent conductive coatings based on an aluminum grid embedded in anodic aluminum oxide have been studied. The coatings were formed by local porous anodizing of an aluminum film deposited on a glass substrate. The conductivity of the coating samples produced reaches the equivalent of the conductivity of films with a surface resistance of 1.0 Ohm/square. The transmittance of the best sample of coatings averaged over the visible wavelength range reaches 89%, which is comparable with the best modern transparent conductive coatings.