Flexible electrode and method for manufacturing the same, electronic skin and flexible display device

Patent metadata

Field	Value
Publication number	US-9698367-B2
Application number	US-201514892543-A
Country	US
Kind code	B2
Filing date	Apr 15, 2015
Priority date	Dec 10, 2014
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

The present disclosure relates to a flexible electrode and a method for manufacturing the same, an electronic skin and a flexible display device, the conductive polymer is solution treated by the ionic liquid, the nano-metal material is added to the solution treated conductive polymer to form the dispersed liquid of the conductive polymer containing the nano-metal material, the dispersed liquid is transferred to the substrate for curing to obtain the flexible electrode. The flexible electrode makes use of the flexible property of the conductive polymer such that the formed flexible electrode has good ductility and resilience. And the nano-metal material is dispersed in the conductive polymer such that the nano-metal material remedies the defect of low conductive property of the conductive polymeric material, and the flexible electrode has good conductivity.

First claim

The invention claimed is:

1. A flexible electrode, comprising a body made of a conductive polymeric material, in which a nano-metal material is dispersed;
wherein the conductive polymeric material is a conductive polymeric material treated by an ionic liquid.

2. The flexible electrode according to claim 1 , wherein the conductive polymeric material comprises at least one of polyacetylene, polythiophene, polypyrrole, polyaniline, polyphenylene, polyphenylene acetylene, and polydiacetylene.

3. The flexible electrode according to claim 1 , wherein the nano-metal material comprises at least one of gold nanoparticles, silver nanoparticles and copper nanoparticles.

4. The flexible electrode according to claim 3 , wherein the nano-metal material has a particle size ranging from 10 nm to 50 nm.

5. The flexible electrode according to claim 1 , wherein the weight ratio of the nano-metal material to the conductive polymeric material ranges from 1:15 to 1:5.

6. The flexible electrode according to claim 1 , wherein the ionic liquid comprises at least one of
1-ethyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium hexafluorophosphate, 1-octyl-3-methylimidazolium hexafluorophosphate, 1-ethyl-3-methylimidazolium tetrafluoroborate,
1-butyl-3-methylimidazolium trifluoromethanesulfonate,
1-butyl-3-methylimidazolium chloride.

7. The flexible electrode according to claim 6 , wherein the weight ratio of the ionic liquid to the conductive polymeric material ranges from 5:1 to 15:1.

8. A method for manufacturing a flexible electrode, comprising the steps of:
solution treating a conductive polymer by an ionic liquid;
adding a nano-metal material to the solution treated conductive polymer to form a dispersed liquid of the conductive polymer containing the nano-metal material; and
transferring the dispersed liquid to a substrate for curing to form a flexible electrode.

9. The method for manufacturing according to claim 8 , wherein the step of transferring the dispersed liquid to a substrate particularly comprises the steps of:
transferring the dispersed liquid to a carrier; and
transfer printing the carrier bearing the dispersed liquid onto the substrate.

10. The method for manufacturing according to claim 9 , wherein surface of the carrier has a predetermined pattern.

11. The method for manufacturing according to claim 8 , wherein the conductive polymer comprises at least one of polyacetylene, polythiophene, polypyrrole, polyaniline, polyphenylene, polyphenylene acetylene, and polydiacetylene.

12. The method for manufacturing according to claim 11 , wherein the ionic liquid comprises at least one of 1-ethyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium hexafluorophosphate, 1-octyl-3-methylimidazolium hexafluorophosphate, 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium trifluoromethanesulfonate, 1-butyl-3-methylimidazolium chloride.

13. The method for manufacturing according to claim 12 , wherein the weight ratio of the ionic liquid to the conductive polymer ranges from 5:1 to 15:1.

14. The method for manufacturing according to claim 8 , wherein the nano-metal material comprises at least one of gold nanoparticles, silver nanoparticles and copper nanoparticles.

15. The method for manufacturing according to claim 14 , wherein the weight ratio of the nano-metal material to the conductive polymer ranges from 1:15 to 1:5.

16. The method for manufacturing according to claim 14 , wherein the nano-metal material has a particle size ranging from 10 nm to 50 nm.

17. A flexible display device comprising a flexible substrate, on which a first electrode, a light-emitting layer and a second electrode are arranged successively, wherein the first electrode is the flexible electrode according to claim 1 ; and wherein the second electrode is the flexible electrodes according to claim 1 .

18. A display device, comprising the flexible display device according to claim 17 .

19. An electronic skin, comprising the flexible electrode according to claim 1 .

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Wang Jiaheng
• Bai Feng
• Yang Jiuxia
• Liu Jiantao

Classifications

• H01L2251/301

  Electricity · mapped topic

• H01L51/5203

  Electricity · mapped topic

• H01L51/5206 Primary

  Electricity · mapped topic

• H01L51/0021

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic