Nanostructured electrode
View Patent ↗In some embodiments, the inventive concept provides for a process for depositing a substance on a nanostructured surface, particularly for organic components, to yield a substantially consistent and homogeneous coating on the nanostructured surface. The substance to be applied is dissolved in a solvent. The coating for the nanostructured surface is then produced by depositing the first dissolved substance on the nanostructured surface.
1. A process, comprising:
providing a substrate having projections that define recessed regions, wherein:
each of at least some of the projections has an upper surface and metallized flanks;
each recessed region has a surface;
the surface of each of at least some of the recessed regions is more wettable than the upper surface of each of at least some of the projections; and
the surfaces of the recessed regions, the upper surfaces of the projections, and surfaces of the metallized flanks form a nanostructure surface that comprises a plurality of electrodes; and
forming a first coating on the nanostructured surface by applying a first solution to the nanostructured surface to form a portion of an organic component;
wherein:
the first solution comprises a first dissolved substance and a first solvent; and
the organic component is a component of a field effect transistor, a light emitting diode, or a photovoltaic cell.
2. The process according to claim 1 , wherein the first dissolved substance is applied in such a way that the nanostructured surface is covered by a consistently thin, homogeneous wet film of said first dissolved substance.
3. The process according to claim 1 , wherein a viscosity of the first solution is adjusted in such a way that the first dissolved substance is able to flow into the recessed regions of the nanostructured surface.
4. The process according to claim 1 , wherein the first solvent is a printing medium and the first dissolved substance is applied using a printing process.
5. The process according to claim 4 , wherein the printing process is a substantially contactless printing process.
6. The process according to claim 1 , wherein the first substance is an organic semiconductor substance.
7. The process according to claim 1 , wherein the first coating is a semiconductor layer.
8. The process according to claim 1 , wherein surface properties of the nanostructured surface differ at least regionally.
9. The process according to claim 8 , wherein the nanostructured surface has regionally varying wetting properties.
10. The process according to claim 1 , further comprising: applying a second coating on the first coating by applying a second solution to the first coating, wherein the second solution comprises a second dissolved substance and a second solvent.
11. The process according to claim 10 , wherein the second solvent is selected so as to permit at least partial mixing of the first coating and the second coating.
12. The process according to claim 10 , wherein the second substance is an organic semiconductor substance, an electrically conductive substance or a nanoparticulate substance.
13. The process according to claim 10 , wherein the second coating is applied using a printing process.
14. The process according to claim 10 , wherein the second coating is a semiconductor layer or an electrode layer.
15. The process of claim 10 , wherein the second solvent is the same as the first solvent.
16. The process of claim 10 , wherein the second coating is an electrode layer.
17. The process of claim 1 , wherein the organic component comprises an organic semiconductor component.
18. The process of claim 1 , wherein the organic component is a component in a photovoltaic cell.
19. The process of claim 1 , wherein the organic component is a component in a field effect transistor.
20. The process of claim 1 , wherein the organic component is a component of an organic photovoltaic cell.
21. The process of claim 1 , wherein the organic component is a component in a light emitting diode.
22. The process of claim 1 , wherein the organic component is a component of an organic photovoltaic cell.
23. A process, comprising:
providing a substrate having projections that define recessed regions, wherein:
each of at least some of the projections has an upper surface and metallized flanks;
each recessed region has a surface;
the surface of each of at least some of the recessed regions is more wettable than the upper surface of each of at least some of the projections; and
the surfaces of the recessed regions, the upper surfaces of the projections, and surfaces of the metallized flanks form a nanostructure surface that comprises a plurality of electrodes; and
applying a first dissolved substance to the nanostructured surface to form a portion of an organic component.
24. The process of claim 23 , wherein the organic component comprises an organic semiconductor component.
25. The process of claim 23 , wherein the organic component is a component in a photovoltaic cell.
26. The process of claim 23 , wherein the organic component is a component in a light emitting diode.
27. The process of claim 23 , wherein the organic component is a component in a field effect transistor.