Method for manufacturing electronic element including transparent conductive structure

Patent metadata

Field	Value
Publication number	US-10134992-B2
Application number	US-201715596659-A
Country	US
Kind code	B2
Filing date	May 16, 2017
Priority date	Aug 11, 2016
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

Provided is a method for manufacturing an electronic device including a transparent conductive structure, the method including preparing a transparent electrode in which, among a first region and a second region, the first region is selectively surface-modified, preparing a mixed composition including a first composition and a second composition having a different polarity from the first composition, and applying the mixed composition onto the transparent electrode, wherein the applied mixed composition is disposed in the surface modified first region, and the mixed composition disposed in the first region is phase-separated into a first composition layer and a second composition layer disposed on the first composition layer.

First claim

What is claimed is:

1. A method for manufacturing an electronic device including a transparent conductive structure, the method comprising:
preparing a transparent electrode including a first region and a second region, the first region being selectively surface-modified;
preparing a mixed composition including a first composition and a second composition having a different polarity from the first composition, the first composition including a conductive material, the second composition including an insulating material; and
applying the mixed composition onto the transparent electrode,
wherein the applied mixed composition is disposed in the surface modified first region,
wherein the mixed composition disposed in the first region is phase-separated into a first composition layer and a second composition layer disposed on a top surface of the first composition layer, the first composition layer being a conductive layer and the second composition layer being an insulating layer, and
wherein when the mixed composition is phase-separated, the second composition layer is formed so as to be disposed on the first composition layer based on the mixed composition interacting with the selectively surface-modified transparent electrode.

2. The method of claim 1 , wherein the preparation of the transparent electrode comprises:
placing on the transparent electrode a mask having an opening formed therein, the mask being placed so as to cover the second region; and
forming the first region by modifying the surface of the transparent electrode exposed by the opening of the mask.

3. The method of claim 2 , wherein the modification of the surface of the transparent electrode comprises at least one of a plasma treatment, an ozone treatment, irradiation with ultraviolet radiation, or a self assembled monolayer (SAM) technique.

4. The method of claim 2 , wherein the modification of the surface of the transparent electrode comprises performing a plasma treatment using a surface modifying agent, the surface modifying agent including at least one of nitrogen, oxygen, an inert gas, carbon dioxide, nitrogen oxide, hydrogen, ammonia, a chlorine-based gas, ozone, helium, argon, neon, xenon, a perfluorinated gas, or a mixture thereof.

5. The method of claim 2 , wherein the first region has a higher surface energy than the second region.

6. The method of claim 2 , wherein the first region has a higher degree of wetting with the first composition than with the second composition.

7. The method of claim 1 , wherein the mixed composition is a physical mixture of the first composition and the second composition.

8. The method of claim 7 , wherein:
the first composition includes the conductive material and a first solvent; and
the second composition includes the insulating material and a second solvent.

9. The method of claim 8 , wherein the conductive material has the form of at least one of a nanowire, a nanorod, a nanosphere, or a nanoring.

10. The method of claim 8 , wherein the first solvent and the second solvent have different polarities from each other.

11. The method of claim 1 , further comprising performing a heat treatment operation or a UV exposure operation after the application of the mixed composition.

12. The method of claim 1 , further comprising curing the phase-separated first and second composition layers.

13. The method of claim 1 , further comprising:
forming an organic light emitting layer on a face of the transparent electrode; and
forming an additional electrode on the organic light emitting layer, wherein the organic light emitting layer is positioned between the transparent electrode and the additional electrode.

Assignees

• Electronics & Telecommunications Res Inst

Inventors

• Moon Jaehyun
• Lim Jong Tae
• Park Young Sam
• Shin Jin Wook
• Yu Byoung Gon
• Lee Hyunkoo
• Jeong Jong Chan
• Cho Nam Sung
• Cho Doo-Hee
• Han Jun-Han

Classifications

• H01L51/5215

  Electricity · mapped topic

• H01L51/0021 Primary

  Electricity · mapped topic

• H01L51/5234

  Electricity · mapped topic

• H10K50/828

  Transparent cathodes, e.g. comprising thin metal layers · CPC title

• H10K71/211

  by selective transformation of an existing layer · CPC title