Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Waldemar Schoenberger

Matthias Fahland

Peter Munzert

Ulrike Schulz

Nicolas Schiller

John Fahlteich

Tobias Vogt

Steffen Guenther

A plastic substrate having a porous layer is disclosed. In an embodiment, the porous layer is formed at least partially from a material of the plastic substrate and has pores. The proportion by volume of pores is greater in a first region of the porous layer than in a second region of the porous layer. The second region follows the first region, as seen proceeding from the plastic substrate. The porous layer can be produced by a plasma process that simultaneously effects structuring of the plastic substrate by ion bombardment and coating of the plastic substrate.

Plastic substrate having a porous layer and method for producing the porous layer

A plastic substrate has a porous layer on a surface. The porous layer is formed at least partially from a material of the plastic substrate and has pores. The proportion by volume of pores is greater in a first region of the porous layer than in a second region of the porous layer. The second region follows the first region, as seen proceeding from the plastic substrate. The porous layer can be produced by a plasma process that simultaneously effects structuring of the plastic substrate by ion bombardment and coating of the plastic substrate.

A transparent plastic film for screening electromagnetic waves includes a transparent film substrate and a layer system comprising at least one silver layer and two niobium oxide layers. The silver layer is embedded between the two niobium oxide layers.

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Dresden, Germany

Waldemar Schoenberger