Solutions of organic semiconductors that contain additives
View Patent ↗The present invention relates to solutions of organic semiconductors and their use in the production of electronic components.
1. A solution of an organic semiconductor, characterized in that it contains one or more additives, wherein at least one additive is an organic compound containing the heteroatoms silicon, germanium and/or F, or an amphiphile and wherein at least one additive is an organic siloxane-containing compound.
2. A solution as claimed in claim 1 , wherein the organic siloxane-containing additive contains one or more —O—SiR 1 R 2 groups, where
R 1 and R 2 are identical or different and are each H, a linear, branched or cyclic C 1 –C 12 -alkyl group in which one or more nonadjacent carbon atoms may also be are optionally replaced by O or S and one or more H atoms are optionally replaced by F, or a C 2 –C 14 -aromatic or heteroaromatic which may be are optionally substituted by one or more substituents R 3 ;
R 3 are identical or different and are each a linear, branched or cyclic C 1 –C 12 -alkyl or alkoxy group in which one or more nonadjacent carbon atoms are optionally replaced by O or S and one or more H atoms may be are optionally replaced by F, or F or Cl.
3. A solution as claimed in claim 1 , characterized in that the organic siloxane-containing compound is a low molecular weight compound having a molecular weight of less than 1000 g/mol.
4. A solution as claimed in claim 1 , characterized in that the organic siloxane-containing compound is a polymer having a molecular weight of at least 1000 g/mol.
5. A process far producing layers of an organic semiconductor on a substrate which comprises using the solution as claimed in claim 1 .
6. A processes claimed in claim 5 , wherein the process is a printing process for producing the organic semiconductor layers.
7. The process as claimed in claim 6 , wherein the process is an ink jet printing process for producing the organic semiconductor layers.
8. A coating which comprises organic semiconductors and has been produced using solutions as claimed in claim 1 .
9. A coating which comprises organic semiconductors and has been produced by the process as claimed in claim 5 .
10. An electronic component comprising a substrate and the coating as claimed in claim 8 .
11. An electronic component as claimed in claim 10 , characterized in that it is a polymeric organic light-emitting diode, an organic integrated circuit (O-IC), an organic field effect transistor (OFET), an organic thin-film transistor (OTFT), an organic solar cell (O-SC) or an organic laser diode (O laser).