Corrosion-free collectors with selectively coated plastic absorbers

In an ongoing project, corrosion-free collectors with selectively coated plastic absorbers are being developed. The conditions determining the temperature requirements of plastic absorbers are discussed. In contrast to the geometry normally used for metal absorbers, various new geometries for absorbers of polymer materials were investigated. The selective absorber coatings are deposited by sputtering. Two test collectors have been constructed.