Thiol group-containing colored compound, metal nanowire, dispersion liquid, transparent conductive film, information input device, and electronic apparatus

Patent metadata

Field	Value
Publication number	US-9988535-B2
Application number	US-201414914334-A
Country	US
Kind code	B2
Filing date	Aug 14, 2014
Priority date	Aug 26, 2013
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

The thiol group-containing colored compound includes a chromophore having absorption in a visible light region, a thiol group, and a spacer provided between the chromophore and the thiol group. The spacer is a chain alkylene group having 2 to 30 carbon atoms, a cyclic alkylene group having 3 to 30 carbon atoms, or a derivative of either alkylene group in which the number of carbon atoms in an additional structure of the alkylene group is equal to or less than the number of carbon atoms in the alkylene group.

First claim

The invention claimed is:

1. A metal nanowire comprising a metal nanowire body, wherein at least a portion of a surface of the metal nanowire body is surface treated with a thiol group-containing colored compound,
wherein the thiol group-containing colored compound comprises a chromophore having absorption in a visible light region, a thiol group, and a spacer provided between the chromophore and the thiol group,
wherein the spacer is a chain alkylene group having 2 to 30 carbon atoms, a cyclic alkylene group having 3 to 30 carbon atoms, a 2-amino ethylene group, a 6-amino hexylene group, a 11-amino undecylene group, a 16-amino hexadecylene group, an amino propylene group, an amino butylene group, an amino pentylene group, or an amino octylene group, and
wherein the chromophore includes at least one selected from the group consisting of a Cr complex, a Cu complex, a Co complex, a Ni complex, an Fe complex, an azo group, and an indoline group.

2. The metal nanowire of claim 1 , wherein the metal nanowire body comprises at least one element selected from the group consisting of Ag, Au, Ni, Cu, Pd, Pt, Rh, Ir, Ru, Os, Fe, Co, Sn, Al, Tl, Zn, Nb, Ti, In, W, Mo, Cr, Fe, V, and Ta.

3. A dispersion liquid comprising:
the metal nanowires of claim 1 ;
a solvent; and
a binder.

4. A transparent conductive film comprising the metal nanowires of claim 1 .

5. The transparent conductive film of claim 4 , wherein the metal nanowires are dispersed in a transparent binder.

6. The transparent conductive film of claim 4 , wherein a reflection L value of the transparent conductive film is 9 or less.

7. The transparent conductive film of claim 4 , further comprising a metal nanowire body that is not surface treated with the thiol group-containing colored compound.

8. An information input device comprising:
a transparent substrate; and
the transparent conductive film of claim 4 disposed on the transparent substrate.

9. An electronic apparatus comprising:
a display panel; and
the transparent conductive film of claim 4 disposed on the display panel.

10. The metal nanowire of claim 1 , wherein the thiol group-containing colored compound is represented by general formula (1):
R—W—SH  (1)

where R is a chromophore having absorption in a visible light region, and W is a chain alkylene group having 2 to 30 carbon atoms, a cyclic alkylene group having 3 to 30carbon atoms, a 2-amino ethylene group, a 6-amino hexylene group, a 11-amino undecylene group, a 16-amino hexadecylene group, an amino propylene group, an amino butylene group, an amino pentylene group, or an amino octylene group.

Assignees

• Dexerials Corp

Inventors

• Mizuno Mikihisa
• Ishii Yasuhisa
• Iwata Ryosuke

Classifications

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• C09B49/02

  from nitro compounds of the benzene, naphthalene or anthracene series · CPC title

• C09B49/00 Primary

  Sulfur dyes · CPC title

• C09B49/06

  from azines, oxazines, thiazines or thiazoles · CPC title

• H01B1/22

  the conductive material comprising metals or alloys · CPC title