Organic based device and method for manufacture thereof
View Patent ↗A device comprising a first transparent and electrically conductive layer ( 102 ), a second electrically conductive layer ( 104 ), and a functional layer ( 103 ) comprising at least one organic layer, sandwiched between said first and second conductive layers and to form a functional organic stack. At least one via ( 110 ) is arranged to electrically interconnect said first layer ( 102 ) and at least one segment ( 112 ) of said second layer ( 104 ), the segment being electrically insulated from the reminder of the second layer. The present invention makes it possible to uniformly supply the first transparent layer with electrical power. The vias and segments are preferably formed by laser applied through the transparent conductive layer.
1. A device comprising a first transparent and electrically conductive layer, a second electrically conductive layer, and a functional layer comprising at least one organic layer, sandwiched between said first and second conductive layer to form an organic functional stack, characterized by at least one via arranged to electrically interconnect said first transparent layer and at least one segment of said second layer, said segment being electrically insulated from the reminder of the second layer and arranged as a shunt for providing electrical power to the first electrically conducting layer, thereby allowing for uniform distribution of electrical power to the first electrically conducting layer, wherein a plurality of said segments are electrically interconnected to each other.
2. A device according to claim 1 , wherein at least one electrically insulated segment is electrically interconnected to said first layer by more than one via.
3. A device according to claim 1 , further comprising a third conducting layer arranged next to said second layer, said third layer being insulated from said second layer and electrically interconnected to said plurality of segments, thereby providing electrical interconnection between said segments.
4. A device according to claim 1 , wherein said at least one via is formed by temporally locally heating the stack comprising both electrodes and the functional layer, thereby forming a graphite like conductor.
5. A device according to claim 1 , wherein said functional layer is an organic light emitting layer adapted to convert current to light, or an organic light absorbing layer adapted to convert light to current.
6. A device according to claim 1 , wherein said first, transparent conductive layer is provided on a transparent substrate.