Abstract

The properties of metal filters with tin oxide dielectric matching layers is reported here when they are made by planar magnetron sputtering onto a flexible polyester sheet. Comparison with theoretical predictions indicate the point at which the structural effects in the film dominate the properties obtained. Silver films give visible transmittances of approximately 80% with an infrared reflectance of 90%. The performance of gold and copper are not so good. The difference between the deposited films and the theoretical performance can be explained by changes in the packing density of the film during deposition.

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