Transparent conductive film, structure, information input device, and electrode production method

Patent metadata

Field	Value
Publication number	US-2017174888-A1
Application number	US-201615338720-A
Country	US
Kind code	A1
Filing date	Oct 31, 2016
Priority date	Dec 22, 2015
Publication date	Jun 22, 2017
Grant date	—

Abstract

Provided is a transparent conductive film that suppresses deterioration of display characteristics due to reduced contrast and that has excellent long-term conductivity, even when exposed to harsh conditions. The transparent conductive film includes one or more metal nanowire bodies and a colored compound adsorbed onto the metal nanowire bodies. The colored compound includes a first dye that includes a macrocyclic π-conjugated moiety and a moiety having a functional group that exhibits adsorptivity with respect to a constituent metal of the metal nanowire bodies.

First claim

1 . A transparent conductive film comprising:
one or more metal nanowire bodies; and a colored compound adsorbed onto the metal nanowire bodies, wherein the colored compound includes a first dye that includes a macrocyclic π-conjugated moiety and a moiety having a functional group that exhibits adsorptivity with respect to a constituent metal of the metal nanowire bodies.

2 . The transparent conductive film of claim 1 , wherein
the functional group that exhibits adsorptivity with respect to the constituent metal is at least one selected from the group consisting of a sulfo group, a sulfonyl group, a sulfonamide group, a carboxylic acid group, an aromatic amino group, an amide group, a phosphate group, a phosphino group, a silanol group, an epoxy group, an isocyanate group, a cyano group, a vinyl group, a thiol group, a sulfide group, a carbinol group, an ammonium group, a pyridinium group, a hydroxy group, and a methyl group.

3 . The transparent conductive film of claim 1 , wherein
the number of functional groups in the first dye that exhibit adsorptivity with respect to the constituent metal is at least two per each macrocyclic π-conjugated moiety in the first dye.

4 . The transparent conductive film of claim 1 , wherein
the macrocyclic π-conjugated moiety is at least one selected from the group consisting of a porphyrin, a chlorin, a corrole, a norcorrole, a subporphyrin, a phthalocyanine, a naphthalocyanine, a subphthalocyanine, an anthracocyanine, a tetraazaporphyrin, a bacteriochlorin, and a benzoporphyrin.

5 . The transparent conductive film of claim 1 , wherein
the first dye has a number-average molecular mass of from 1,000 to 2,000.

6 . The transparent conductive film of claim 1 , wherein
the colored compound further includes a second dye including a chromophore that absorbs visible region light, but does not have a macrocyclic π-conjugated moiety, and a moiety having a functional group that exhibits adsorptivity with respect to the constituent metal of the metal nanowire bodies.

7 . The transparent conductive film of claim 6 , wherein
the chromophore that absorbs visible region light, but does not have a macrocyclic π-conjugated moiety, is at least one selected from the group consisting of a stilbene derivative, an indophenol derivative, a diphenylmethane derivative, an anthraquinone derivative, a triphenylmethane derivative, a diazine derivative, an indigoid derivative, a xanthene derivative, an oxazine derivative, an acridine derivative, a thiazine derivative, an azo compound, and a metal-containing complex.

8 . The transparent conductive film of claim 6 , wherein
either or both of the first dye and the second dye have a number-average molecular mass of from 1,000 to 2,000.

9 . The transparent conductive film of claim 1 , wherein
the constituent metal of the metal nanowire bodies is silver.

10 . An electrode production method comprising
forming the transparent conductive film of claim 1 on a substrate, wherein pressing is not performed after the forming of the transparent conductive film.

11 . A structure comprising:
a substrate; and the transparent conductive film of claim 1 on the substrate.

12 . An information input device comprising the structure of claim 11 .

Assignees

• Dexerials Corp

Inventors

• Iwata Ryosuke
• Ishii Yasuhisa
• Mizuno Mikihisa

Classifications

• C09B47/00 Primary

  Porphines; Azaporphines {(non-dyeing compounds C07D487/22)} · CPC title

• C09B47/04

  Phthalocyanines {abbreviation: Pc} · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• D06M13/355

  having six-membered heterocyclic rings · CPC title

• C09B47/24

  Obtaining compounds having —COOH or —SO3H radicals, or derivatives thereof, directly bound to the phthalocyanine radical · CPC title