Method for Production of a Multi-Layered Object
Described is a process for the production of a multi-layer object ( 10 ) comprising layer media which have different surface tensions and surface energies. In that respect a first layer ( 16 ) comprising a fluid first medium with a first surface tension is applied to a carrier ( 12 ) which is formed by a flexible film and applied to the first layer ( 16 ) after drying thereof is a second layer ( 18 ) comprising a fluid second medium with a second surface tension. The surface energy of the dried first layer ( 16 ) is less than the second surface tension of the fluid second medium for the second layer ( 18 ). A spreading layer ( 20 ) is applied prior to the application of the second layer ( 18 ) to the dried first layer ( 16 ).
1 . A process for the production of a multi-layer object comprising layer media which have different surface tensions and surface energies, wherein
a first layer comprising a fluid first medium with a first surface tension is applied to a carrier which is formed by a flexible film and applied to the first layer after drying thereof is a second layer comprising a fluid second medium with a second surface tension which is greater than the first surface tension, and wherein a spreading layer is applied prior to the application of the second layer to the dried first layer, wherein the spreading layer is a thin-film metal layer or a metal seeding or has a capillarity.
2 . A process according to claim 1 , wherein at least one pre-layer is applied to the carrier prior to the application of the first layer.
3 . A process according to claim 1 , wherein the first and second layers comprise organic semiconductor media.
4 . Use of the process according to claim 1 for the production of polymer solar cells.