Vertical organic transistor and production method
The invention relates to a vertical organic transistor on a substrate having an electrode, a counter electrode and a layer arrangement which is arranged between the electrode and the counter electrode, wherein the layer arrangement is formed with the following layers: a central electrode, an organic layer made up of organic semiconductor material which is arranged between the central electrode and the electrode, a further organic layer made up of organic semiconductor material, which is arranged between the central electrode and the counter electrode, and a doping layer which is arranged between the central electrode and the electrode. Furthermore, the invention relates to a method for producing a vertical organic transistor.
1. A vertical organic transistor, on a substrate, comprising:
an electrode,
a counter electrode, and
a layer arrangement which is arranged between the electrode and the counter electrode,
wherein the layer arrangement comprises the following layers:
a central electrode, which allows a passage of electrical charge carriers through the central electrode, which are injected from the electrode into the layer arrangement, so that the injected electrical charge carriers can be transported from the electrode through the layer arrangement to the counter electrode,
a first organic layer of a first organic semiconductor material which is arranged between the central electrode and the electrode,
a second organic layer of a second organic semiconductor material, which is arranged between the central electrode and the counter electrode, and
a first doping layer which is arranged between the central electrode and the electrode, and wherein the central electrode has one or a plurality of openings, through which a touch contact is made between a first region of the layer arrangement on one side of the central electrode and a second region of the layer arrangement on an opposite side of the central electrode.
2. The transistor according to claim 1 , wherein the first doping layer is arranged between the electrode and the first organic layer.
3. The transistor according to claim 1 , further comprising a second doping layer, which is arranged between the central electrode and the counter electrode.
4. The transistor according to claim 3 , wherein the second doping layer is arranged between the counter electrode and the second organic layer.
5. The transistor according to claim 3 , wherein the first doping layer or the second doping layer is formed as an electrically doped layer, in which an electrical dopant is embedded into a matrix material.
6. The transistor according to claim 3 , wherein the first doping layer or the second doping layer is formed as a dopant layer made up of a doping material, wherein the doping material is an electrical dopant for the first organic semiconductor material of the first organic layer in the case of the first doping layer and an electrical dopant for the second organic semiconductor material of the second organic layer in the case of the second doping layer.
7. The transistor according to claim 3 , wherein the first doping layer and the second doping layer differ with respect to at least one of the following layer properties:
layer thickness,
spacing between a layer edge facing the central electrode and an opposite layer edge of the central electrode,
doping profile, and
material composition.
8. The transistor according to claim 3 , wherein at least one of the following layers is multilayered: the first organic layer, the second organic layer, the first doping layer, and the second doping layer.