Nano-wire and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9956616-B2
Application number	US-201214236045-A
Country	US
Kind code	B2
Filing date	Jul 25, 2012
Priority date	Jul 29, 2011
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

Disclosed are a wire and a method for manufacturing the same. The method includes heating a solvent, adding a capping agent to the solvent, and forming a metallic wire by adding a metallic compound to the solvent. The solvent includes a first solvent having a first reduction power and a second solvent having a second reduction power greater than the first reduction power. The capping agent includes a first capping agent containing a polymer having a first molecular weight, and a second capping agent containing a polymer having a second molecular weight greater than the first molecular weight.

First claim

The invention claimed is:

1. A method for manufacturing a wire, the method comprising:
heating a solvent;
adding a catalyst to the solvent; and
forming a metallic wire by adding a metallic compound to the solvent,
wherein the solvent includes a first solvent having a first reduction power and a second solvent having a second reduction power greater than the first reduction power,
wherein a volumetric ratio of the first solvent to the second solvent is in a range of 1:2 to 1:4,
wherein, in the step of the adding the catalyst to the solvent, AgCl and KBr are added to the solvent, and
wherein the amount of AgCl added to the solvent is larger than the amount of KBr added to the solvent.

2. The method of claim 1 , wherein the first and second solvents include glycol.

3. The method of claim 2 , wherein the first solvent includes ethylene glycol, and the second solvent includes propylene glycol.

4. The method of claim 1 , wherein the metallic compound includes a silver compound.

5. The method of claim 4 , wherein the silver compound includes AgCl, AgNO 3 or KAg(CN) 2 .

6. The method of claim 1 , wherein the solvent is heated at a temperature of 110° C. to 160° C.

7. The method of claim 1 , further comprising adding a capping agent to the solvent.

8. The method of claim 7 , wherein the capping agent includes material selected from the group consisting of polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), cetyltrimethyl ammonium bromide (CTAB), cetyl trimethyl ammonium chloride (CTAC), and polyacrylamide.

9. The method of claim 7 , wherein the metallic compound melted in a separate solvent, is added to the solvent having the capping agent.

10. The method of claim 9 , wherein the capping agent is added by the content of 60 weight parts to 330 weight parts with respect to 100 weight parts of the metallic compound.

11. The method of claim 9 , wherein the separate solvent includes material identical to the solvent having the capping agent.

12. The method of claim 1 , wherein the metallic compound, melted in a separate solvent, is added to the solvent having the catalyst.

13. The method of claim 12 , wherein the catalyst is added by the content of 0.005 weight part to 0.5 weight part with respect to 100 weight parts of the metallic compound.

14. The method of claim 1 , wherein the forming the metallic wire is to form the metallic wire having a diameter of 30 nm to 55 nm.

15. The method of claim 1 , wherein the forming the metallic wire is to form the metallic wire having a length of 20 μm to 60 μm.

16. The method of claim 1 , wherein the forming the metallic wire is to form the metallic wire having an aspect ratio of 364 to 2,000.

17. The method of claim 1 , wherein the forming the metallic wire is to form the metallic wire having a network structure.

18. The method of claim 1 , further comprising adding a room-temperature solvent to the solvent in which the reaction is started.

19. The method of claim 18 , wherein the room-temperature solvent includes material identical to that of the solvent.

Assignees

• Choi Joon Rak
• Moon Jong Woon
• You Young Sun
• Cho Yong Sang
• Chai Kyoung Hoon
• Suh Hyeok Soo
• Lee Sang Hoon
• Lee Yong Sang
• Choi Won Jong
• Lg Innotek Co Ltd
• Nanopyxis Co Ltd

Inventors

• Choi Joon Rak
• Moon Jong Woon
• You Young Sun
• Cho Yong Sang
• Chai Kyoung Hoon
• Suh Hyeok Soo
• Lee Sang Hoon
• Lee Yong Sang
• Choi Won Jong

Classifications

• B22F1/0547

  Nanofibres or nanotubes · CPC title

• B22F1/0025

  Operations & Transport · mapped topic

• B22F9/24 Primary

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

• C30B7/14

  the crystallising materials being formed by chemical reactions in the solution · CPC title

• C30B29/62

  Whiskers or needles · CPC title