Method for manufacturing metallic nanowire transparent electrode

Patent metadata

Field	Value
Publication number	US-10780494-B2
Application number	US-201615087819-A
Country	US
Kind code	B2
Filing date	Mar 31, 2016
Priority date	Dec 7, 2015
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

Disclosed is a method for manufacturing a metallic nanowire transparent electrode, including generating a metallic nanowire and chemically reducing the metallic nanowire to connect adjacent metallic nanowires.

First claim

What is claimed is:

1. A method for manufacturing a metallic nanowire transparent electrode, comprising:
generating a metallic oxide nanowire; and
chemically reducing the metallic oxide nanowire to connect adjacent metallic nanowires.

2. The method of claim 1 , wherein
the reducing agent used when the metallic oxide nanowire is chemically reduced is at least one selected from the group consisting of hydrazine, hydroxylamine, and formaldehyde, tetrahydroborates including lithium (Li) tetrahydroborate, including sodium (Na) tetrahydroborate, potassium (K) tetrahydroborate, polyhydroxybenzenes including hydroquinone, alkyl-substituted hydroquinones, and pyrogallol, LiAlH4, phenylenediamines, aminophenols, ascorbic acid, ascorbic acid ketals, 3-pyrazolidinone, hydroxytetronic acid, hydroxytetronamide, bisnaphthols, lithium (Li), sodium (Na), and potassium (K) sulfonamidophenols.

3. The method of claim 2 , wherein
the metallic oxide nanowire includes at least one metal selected from the group consisting of lead (Pb), indium (In), tin (Sn), aluminum (Al), silver (Ag), copper (Cu), gold (Au), platinum (Pt), titanium (Ti), iron (Fe), nickel (Ni), cobalt (Co), and their mixtures.

4. The method of claim 3 , wherein
the metallic oxide nanowire includes silver,
the reducing agent used when the metallic oxide nanowire is chemically reduced is hydrazine, and
the reduction time is about 1 min to 10 min.

5. The method of claim 3 , wherein
the metallic oxide nanowire includes copper,
the reducing agent used when the metallic oxide nanowire is chemically reduced is hydrazine, and
the reduction time is about 20 min to 60 min.

6. The method of claim 1 wherein
The chemically reducing of the metallic oxide nanowire is performed by reacting with the metallic oxide nanowire while the reducing agent is vaporized.

7. The method of claim 1 , wherein
The chemically reducing of the metallic oxide nanowire is performed by soaking the metallic oxide nanowire in the reducing agent in a solution state.

8. The method of claim 1 . further comprising:
the step of depositing the metallic oxide nanowire on a substrate before generating of a metallic oxide nanowire and the chemical reduction of the metallic oxide nanowire to connect adjacent metallic nanowires.

9. The method of claim 8 . further comprising,
After chemically reducing the metallic oxide nanowire to connect adjacent metallic nanowires,
soaking the metallic oxide nanowire in water to separate the substrate and the metallic nanowire deposited on the substrate.

10. The method of claim 9 , further co rising
after soaking the metallic oxide nanowire in water to separate the substrate and the metallic oxide nanowire deposited on the substrate,
transferring the separated metallic oxide nanowire on a material.

11. The method of claim 1 , wherein
After chemically reducing the metallic oxide nanowire to connect adjacent metallic nanowires, transmittance of the metallic oxide nanowire transparent electrode is greater than 80% in a visible ray region.

Assignees

• Samsung Display Co Ltd
• Korea Advanced Inst Sci & Tech

Inventors

• Choi Jin Hwan
• Lee Jung Yong
• Kim Tae Woong
• Ahn Jae Ho

Classifications

• B22F1/0547

  Nanofibres or nanotubes · CPC title

• B22F3/002 Primary

  Manufacture of articles essentially made from metallic fibres · CPC title

• B22F9/24

  starting from liquid metal compounds, e.g. solutions · CPC title

• B22F2301/255

  Silver or gold · CPC title

• B22F2009/245

  Reduction reaction in an Ionic Liquid [IL] · CPC title