Abstract: The invention relates to an article, in particular an implant, comprising a substrate which is coated at least partly with at least one layer, and on which there is at least partly a protein-, peptide- and/or saccharide-containing substance, where the layer directly adjacent to the substance comprises at least one metal selected from titanium, zirconium and hafnium, or a compound thereof with one or more non-metals and/or semiconductors, or an alloy thereof with one or more other metals, and has been applied by means of a vacuum coating process. Also provided is a process for producing the article, in which the layer is applied to the substrate under vacuum, and the use of the article.

Abstract: The invention concerns process for producing thin layers of a material containing chemical compounds between a metal from group IV A of the periodic system, nitrogen and oxygen. The optical and electrical properties of this material can be set within wide limits by means of small voids, without the need to alter the chemical composition. The material is suitable in particular for use as a selective radiation converter in the solar energy and power industry. Aside from other processes for its manufacture, it can be produced as a thin coating deposited on a substrate by means of reactive evaporation.

Abstract: The invention concerns a material containing chemical compounds between a metal from group IV A of the periodic system, nitrogen and oxygen. The optical and electrical properties of this material can be set within wide limits by means of small voids, without the need to alter the chemical composition. The material is suitable in particular for use as a selective radiation converter in the solar energy and power industry. Aside from other processes for its manufacture, it can be produced as a thin coating deposited on a substrate by means of reactive evaporation.