Sulfonation of conducting polymers and OLED, photovoltaic, and ESD devices
AssigneePlextronics, Inc.
InventorsVenkataramanan Seshadri, Brian E. Woodworth, Christopher Greco, Darin Laird, Mathew K. Mathai
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Abstract
Conducting polymer systems for hole injection or transport layer applications including a composition comprising: a water soluble or water dispersible regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone. The polythiophene can be water soluble, water dispersible, or water swellable. They can be self-doped. The organic substituent can be an alkoxy substituent, or an alkyl substituent. OLED, PLED, SMOLED, PV, and ESD applications can be used.
Claims102
A composition comprising:
- a water soluble or water dispersible regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone,
- wherein the polythiophene is a regioregular head-to-tail coupled poly(3-substituted thiophene) having a degree of regioregularity of at least about 70% apart from sulfonation.
A coating composition comprising:
- (A) water,
- (B) a water soluble or water-dispersible regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone,
- (C) a synthetic polymer different from (B),
- wherein the polythiophene is a regioregular head-to-tail coupled poly(3-substituted thiophene) having a degree of regioregularity of at least about 70% apart from sulfonation.
A coated substrate comprising:
- a solid surface, a coating disposed on the surface, wherein the coating comprises a composition comprising:
- a water soluble, water dispersible, or water swellable regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone, wherein the regioregular polythiophene has a degree of regioregularity of at least about 70% apart from sulfonation.
A coated substrate comprising:
- a water soluble, water-dispersible, or water swellable regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone, a synthetic polymer different from the regioregular polythiophene, wherein the polythiophene has a degree of regioregularity of at least about 90% apart from sulfonation.
A device comprising a hole injection layer or a hole transport layer, the layer comprising a sulfonated conducting polymer, wherein the conducting polymer is a regioregular polythiophene having at least one organic substituent and a degree of regioregularity of at least about 70% apart from sulfonation.
A composition comprising:
- a water soluble, water dispersible, or water swellable regioregular polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone, wherein the regioregular polythiophene has a degree of regioregularity of at least about 70% apart from sulfonation.
A composition comprising:
- a water soluble or water dispersible polythiophene comprising (i) at least one organic substituent, and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone, wherein the polythiophene is a regioregular polythiophene and has a degree of regioregularity of at least about 90% and wherein the organic substituent comprises at least one heteroatom.
A composition comprising:
- a water soluble or water dispersible heterocyclic polymer comprising (i) at least one organic substituent, wherein the organic substituent comprises at least one oxygen heteroatom and (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the heterocylic polymer backbone, wherein the heterocyclic polymer is a regioregular bolythiophene which has a degree of regioregularity of at least about 70% and a molecular weight of 5,000 to about 1,000,000.
A device comprising an electrostatic dissipation (ESD) material, said ESD material comprising at least one water soluble or water dispersible polymer comprising regioregular polythiophene comprising:
- (i) at least one organic substituent;
- and
- (ii) at least one sulfonate substituent comprising sulfonate sulfur bonding directly to the polythiophene backbone, wherein the polythiophene has a degree of regioregularity of at least about 70% apart from sulfonation.
A method of reducing electrostatic charge on a device comprising coating said device with a coating comprising a polythiophene comprising:
- (i) at least one organic substituent;
- and
- (ii) at least one sulfonated substituent comprising sulfur bonding directly to the polythiophene backbone, wherein the polythiophene has a degree of regioregularity of at least about 70% apart from sulfonation.
Dependencies are inferred from the claim text.