Organic conductive compositions and structures
View Patent ↗Compositions comprising at least one conductive polymer and an organic cation are provided, and methods for making the same.
1. A composition, comprising:
a dispersion of:
at least one conductive polymer;
a water soluble polymeric acid; and
an organic cation derived from a phosphate or hydroxide salt;
wherein the organic cation is present in a concentration between about 0.1 and 10 mmol per gram of the conductive polymer and
wherein the composition has a pH of less than 2.
2. The composition of claim 1 , wherein the organic cation is derived from a salt comprising tetraalkyl ammonium phosphate, tetraalkyl ammonium hydroxide, diallyl dimethyl ammonium phosphate, diallyl dimethyl ammonium hydroxide, or mixtures thereof.
3. The composition of claim 1 , wherein the organic cation is derived from tetraalkyl ammonium hydroxide or tetramethyl ammonium hydroxide.
4. The composition of claim 1 , wherein the water soluble polymeric acid is poly(styrenesulfonic acid).
5. The composition of claim 1 , wherein the conductive polymer is polythiophene, polypyrrole, polyaniline, polyamine, polyacetylene, poly(thienothiophene), or poly(3,4-ethylenedioxythiophene), or mixtures thereof.
6. The composition of claim 1 , wherein the conductive polymer is poly(3,4-ethylenedioxythiophene).
7. The composition of claim 1 , further comprising a co-solvent that is an ether, cyclic ether, alcohol, alcohol ether, ketone, nitrile, sulfide, sulfoxide, amide, amine, or carboxylic acid, or mixtures thereof.
8. The composition of claim 7 , wherein the co-solvent is n-propanol, 1-methoxy-2-propanol, or mixtures thereof.
9. The composition according to claim 1 , wherein the organic cation is present in a concentration between about 0.5 and 3 mmol per gram of the conductive polymer.
10. A composition, comprising:
a dispersion of:
at least one conductive polymer;
a water soluble polymeric acid; and
an organic cation derived from a salt comprising tetraalkyl ammonium phosphate, tetraalkyl ammonium hydroxide, diallyl dimethyl ammonium phosphate, diallyl dimethyl ammonium hydroxide, or mixtures thereof,
wherein the organic cation is present in a concentration between about 0.1 and 10 mmol per gram of the conductive polymer and
wherein the composition has a pH of less than 2.
11. The composition of claim 10 , wherein the conductive polymer is polythiophene, polypyrrole, polyaniline, polyamine, polyacetylene, poly(thienothiophene), or poly(3,4-ethylenedioxythiophene), or mixtures thereof and the water soluble polymeric acid is poly(styrenesulfonic acid).
12. The composition of claim 10 , wherein the conductive polymer is poly(3,4-ethylenedioxythiophene).
13. The composition of claim 10 , wherein the water soluble polymeric acid is poly(styrenesulfonic acid).
14. The composition of claim 10 , wherein the organic cation is derived from tetraalkyl ammonium hydroxide or tetramethyl ammonium hydroxide.