Material for a functional layer of an organic electronic component, method for the production thereof, and use thereof
View Patent ↗The invention relates to a material for applying thin organic layers having a specifically adjustable conductivity. Said material comprises at least one mixture of two different fractions of a functional polymer, preferably in a solvent, and is used, for example, with the aid of various application techniques, as a functional layer for an organic electronic component.
1. A method comprising:
combining a first fraction of a functional polymer with a first liquid to provide a dispersion;
combining a second fraction of the functional polymer with a second liquid to provide a first solution;
combining the dispersion and the first solution in a solvent; and
after which, at least partially removing the first and second liquids to provide a composition,
wherein the first liquid is different from the second liquid, the first liquid is different from the solvent, and the solvent is different from the second liquid.
2. The method as recited in claim 1 , wherein the first and second liquids are removed by distillation so that the composition is substantially free of the first and second liquids.
3. The method as recited in claim 1 , wherein the solvent is added in the same proportions as those in which the fractions concerned are present.
4. The method of claim 1 , wherein the functional polymer is substantially insoluble in the first liquid.
5. The method of claim 1 , wherein the first liquid is water.
6. The method of claim 1 , wherein functional polymer comprises PEDOT.
7. The method of claim 1 , wherein the functional polymer comprises PANI.
8. The method of claim 1 , wherein the second liquid is a polar liquid.
9. The method of claim 1 , wherein the second liquid comprise ethanol.
10. The method of claim 1 , wherein the first liquid has a boiling point of up to 150° C., and the second liquid has a boiling point of up to 150° C.
11. The method of claim 1 , wherein the solvent comprises an alcohol.
12. The method of claim 11 , wherein the alcohol is has from four to 10 carbon atoms.
13. The method of claim 1 , wherein the solvent comprises a glycol or glycerol.
14. The method of claim 1 , wherein the solvent comprises ethylene glycol.
15. The method of claim 1 , further comprising applying a second solution to a substrate.
16. The method of claim 15 , wherein the second solution is applied in a structured manner.
17. The method of claim 15 , wherein the second solution is continuously applied.
18. The method of claim 15 , further comprising processing the second solution to provide a functional layer.
19. The method of claim 18 , further comprising incorporating the functional layer into an organic electronic component.
20. A method, comprising:
combining a first fraction of a functional polymer with water to provide a dispersion;
combining a second fraction of the functionally polymer with ethanol to provide a first solution;
combining the dispersion and the first solution in ethylene glycol; and
at least partially removing the water and ethanol to provide a composition.