Polymeric conductor donor and transfer method

• US 20060131703A1
• Filed: 12/22/2004
• Published: 06/22/2006
• Est. Priority Date: 12/22/2004
• Status: Active Grant

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Majumdar, Debasis, Anderson, Charles C., Irvin, Glen C. Jr., Freedman, Gary S., Kress, Robert J.
• Granted Patent: US 7,414,313 B2
• Time in Patent Office: Days
• US Class Current: 257/665
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• CPC Class Codes: H05K 2201/0329 Intrinsically conductive polymer [ICP]; Semiconductive polymer
• CPC Class Codes: H05K 2203/0528 Patterning during transfer, i.e. without preformed pattern, e.g. by using a die, a programmed tool or a laser
• CPC Class Codes: H05K 2203/107 Using laser light shaping a substrate by laser ablation H05K3/0026
• CPC Class Codes: H05K 3/046 by selective transfer or selective detachment of a conductive layer
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/81 Anodes
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/611 using printing deposition, e.g. ink jet printing
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: H10K 85/1135 Polyethylene dioxythiophene [PEDOT]; Derivatives thereof

Abstract

The present invention relates to a donor laminate for transfer of a conductive layer comprising at least one electronically conductive polymer on to a receiver, wherein the receiver is a component of a device. The present invention also relates to methods pertinent to such transfers.

Claims

1. A donor laminate for transfer of a conductive layer comprising a substrate having thereon in order a silicone layer and a conductive layer comprising at least one electronically conductive polymer and a polyanion, in contact with said silicone layer.

2. The laminate of claim 1 wherein said conductive layer is in a pattern.

3. The laminate of claim 1 wherein said conductive layer comprises polyethylene dioxythiophene.

4. The laminate of claim 1 wherein said conductive layer comprises polystyrene sulfonate.

5. The laminate of claim 1 wherein said substrate comprises a polymer selected from the group consisting of cellulose ester, polyester and polyolefin polymers.

6. The laminate of claim 1 wherein said silicone layer comprises a cross-linked silicone.

7. The laminate of claim 1 wherein said conductive layer has a peel force of less than 100 grams per inch for separation from said release layer at room temperature.

8. The laminate of claim 1 wherein said conductive layer has a peel force of less than 50 grams per inch for separation from said release layer at room temperature.

9. The laminate of claim 1 wherein said silicone layer is coated from silicone modified by a functionality selected from the group consisting of epoxy, acrylate, and ester.

10. The laminate of claim 1 wherein said laminate further comprises an adhesive layer on the side of the conductive layer opposite to the substrate.

11. The laminate of claim 1 wherein said conductive layer is a transparent conductive layer comprising an electronically conductive polymer comprising polythiophene present in a cationic form with a polyanion, wherein said conductive layer has an FOM less than or equal to 100 wherein FOM is defined as the slope of the plot of ln (1/T) versus [1/SER]:

and wherein

T=visual light transmission

SER=surface electrical resistance in ohm per square

FOM=figure of merit, and

wherein the SER has a value of less than or equal to 1000 ohm per square.

12. The laminate of claim 1 wherein said silicone layer has a surface energy of ≦

30 mN/m.

13. The laminate of claim 11 wherein said conductive layer has a visual light transmission of greater than 90%.

14. The laminate of claim 1 wherein said conductive layer is coated utilizing a conductivity enhancing agent.

15. The laminate of claim 11 wherein the figure of merit is less than or equal to 40.

29. The laminate of claim 1 wherein said conductive layer has a peel force of less than 100 grams per inch for separation from said substrate at 300°

C.

30. The laminate of claim 11 wherein said conductive layer has a peel force of less than 50 grams per inch for separation from said substrate.

31. The laminate of claim 11 wherein said laminate further comprises an adhesive layer on the side of the conductive layer opposite to the substrate.

16. A method of transferring comprising providing a laminate for transfer of a conductive layer comprising a substrate having thereon in order a silicone layer and a conductive layer comprising at least one electronically conductive polymer and a polyanion, in contact with said substrate, bringing the side of said laminate bearing said conductive layer into contact with a receiver element to transfer said conductive layer to said receiver element.

17. The method of claim 16 wherein heat is applied during transfer.

18. The method of claim 16 wherein pressure is applied during transfer.

19. The method of claim 16 wherein said silicone layer comprises a cross-linked silicone.

20. The method of claim 17 wherein a light source is utilized to supply heat during transfer.

21. The method of claim 17 wherein a resistive head is used to supply heat during transfer.

22. The method of claim 16 wherein said silicone layer is coated from silicone modified by a functionality selected from the group consisting of epoxy, acrylate, and ester.

23. The method of claim 16 wherein said silicone layer has a surface energy of ≦

30 mN/m.

24. The method of claim 16 wherein the transfer is in a pattern for an electrode.

25. The method of claim 16 wherein said transfer is in a pattern.

26. The method of claim 25 wherein said pressure is applied by a patterned roller.

27. The method of claim 16 wherein transferring utilizes an adhesive between said conductive layer and said receiver element.

28. The product formed by the method of claim 16.

32. The method of claim 16, wherein said conductive layer has an FOM less than or equal to 100 wherein FOM is defined as the slope of the plot of ln (1/T) versus [1/SER]:

and wherein

T=visual light transmission

SER=surface electrical resistance in ohm per square

FOM=figure of merit, and

wherein the SER has a value of less than or equal to 1000 ohm per square.