Photoactive compositions for liquid deposition
View Patent ↗Compositions are provided, comprising a host and a dopant, wherein the weight:weight ratio of host:dopant is about 10:1 to about 40:1, and a solvent, and methods for making the same, as well as devices and sub-assemblies including the same.
1. A composition comprising:
(i) a distyrylarylene or mixtures of a distyrylarylene and a diarylantracene; and
(ii) an arylamine;
in a concentration of about 1.0% w/v in a solvent, wherein the weight:weight ratio of (i):(ii) is about 10:1 to about 40:1;
wherein said distyrylarylene is of the formula
wherein R 1 to R 30 are, independently, hydrogen, alkyl, alkoxy, or aryl.
2. The composition of claim 1 , wherein the weight ratio of distyrylarylene:arylamine is 13:1.
3. The composition of claim 1 , wherein the weight ratio of distyrylarylene:arylamine is 30:1.
4. The composition of claim 1 , wherein the solvent is an aromatic hydrocarbon.
5. The composition of claim 1 , wherein the solvent is toluene, xylene, mesitylene, anisole, chlorobenzene, cyclohexanone, gamma-valerolactone, chloroform, tetrachloroethane, tetrachloroethylene, trifluorotoluene, methylbenzoate, N,N-dimethylformamide or derivatives thereof.
6. The composition of claim 1 , wherein the solvent is toluene, xylene, mesitylene, anisole, chlorobenzene, cyclohexanone, gamma-valerolactone, or chloroform, or derivatives thereof, or mixtures thereof.
7. The composition of claim 1 , wherein the solvent is toluene.
8. The composition of claim 7 , wherein the solvent is trifluorotoluene.
9. The composition of claim 1 , wherein the solvent is toluene and trifluorotoluene.
10. The composition of claim 9 , wherein the toluene and trifluorotoluene are in a 1:1 volume:volume ratio.
11. The composition of claim 1 , wherein the solvent further includes esters, ketones, and alcohols.
12. A composition comprising:
a host and a dopant, wherein the weight:weight ratio of host:dopant is about 10:1 to about 40:1, wherein said host is a distyrylarylene or mixtures of a distyrylarylene and a diarylantracene; and
a solvent;
wherein said distyrylarylene is of the formula
wherein R 1 to R 30 are, independently, hydrogen, alkyl, alkoxy, or aryl.
13. The composition of claim 12 , wherein the solvent is organic and nonreactive with the host and dopant.
14. The composition of claim 12 , wherein the host and dopant are present in a concentration of about 1.0% w/v in the solvent.
15. The composition of claim 12 , wherein the weight ratio of host:dopant is about 13:1.
16. A method for forming an organic electronic device, comprising:
providing the composition of claim 12 ; and
depositing the composition as a liquid.
17. The method of claim 16 , wherein the depositing step is spin-coating.
18. A composition including the composition of claim 12 .
19. An organic electronic device having an active layer including the composition of claim 12 .
20. An article useful in the manufacture of an organic electronic device, comprising the composition of claim 12 .
21. A composition comprising:
(i) a distyrylarylene, a diarylanthracene, or mixtures thereof; and
(ii) an arylamine;
in a concentration of about 1.0% w/v in a solvent, wherein the weight:weight ratio of (i):(ii) is about 10:1 to about 40:1, wherein the solvent comprises trifluorotoluene.
22. The composition of claim 21 wherein said solvent additionally comprises toluene.
23. The composition of claim 22 , wherein the toluene and trifluorotoluene are in a 1:1 volume:volume ratio.
24. The composition of claim 21 , wherein the weight ratio of distyrylarylene:arylamine is 13:1.
25. The composition of claim 21 , wherein the weight ratio of distyrylarylene:arylamine is 30:1.