Coating, method for the production thereof and use thereof

US10351717B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Thomas Abendroth · Mercer, US
• Holger Althues · Dresden, DE
• Gerrit Maeder · Dresden, DE
• Stefan Kaskel · Dresden, DE

Key dates

• Filing date: Mar 13, 2014
• Grant date: Jul 16, 2019
• Expiry date: May 7, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/40
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a coating which has special absorption properties for electromagnetic radiation from the wavelength spectrum of sunlight and to a method for producing the coating and to its use. The coating is formed by a layer which is formed on the surface of a substrate or on a reflective layer formed on the surface of the substrate. Carbon nanotubes are contained in the layer. The proportion of carbon nanotubes contained per unit of area or unit of volume and/or the layer thickness of the layer is selected such that it absorbs electromagnetic radiation from the wavelength spectrum of sunlight at predefinable proportions and the proportion of electromagnetic radiation from the wavelength spectrum of a black radiator at a temperature greater than 50° C. which is emitted is very small.