| 摘要 |
<p>The invention relates to a selective absorber for converting sunlight into heat, said absorber being composed of thin layers on a substrate, preferably aluminum, copper, or steel. The thin layers are made of two layer systems. The first layer system, which borders the substrate, comprises at least one layer that is made of tight, i.e. void-free material composed of titanium, aluminum, nitrogen, carbon, and oxygen. Said material has the chemical formula TiaAlssNxCyOz. The superimposed second system comprises at least one layer that is made of a mixture of TiOz and Al2O3.</p> |
