Carbon nanomaterial-based structure using electron beam, flexible transparent electrode comprising the same, and method for producing the same

Patent metadata

Field	Value
Publication number	US-12308142-B2
Application number	US-202218059345-A
Country	US
Kind code	B2
Filing date	Nov 28, 2022
Priority date	Jan 6, 2022
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

Disclosed is a carbon nanomaterial-based structure, including: a polymer resin layer; and a carbon nanomaterial layer stacked on the polymer substrate, wherein the carbon nanomaterial is a carbon nanomaterial doped by electron beams.

First claim

What is claimed is:

1. A carbon nanomaterial-based structure, comprising: a polymer resin layer; and a carbon nanomaterial layer stacked on the polymer resin layer,
wherein the carbon nanomaterial is a carbon nanomaterial doped with radical, ion, or electron derived from a change in chemical structure of the polymer resin by electron beams, and
wherein the doped carbon nanomaterial has P-type or N-type structure/characteristics by the electron-donating or electron-withdrawing from the polymer resin through a charge transfer mechanism.

2. The carbon nanomaterial-based structure according to claim 1 , wherein the polymer resin has at least one chemical structure selected from the group consisting of methyl, ethyl, phenyl, allyl, benzyl, alkene, alkyne, arene, phenol, benzoyl, alkyl halide, alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amide, amine, imine, thiol, sulfide, nitrile, and peroxide.

3. The carbon nanomaterial-based structure according to claim 1 , wherein the polymer resin is derived from at least one selected from the group consisting of polyimide (PI), colorless polyimide (cPI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polydimethyl siloxane (PDMS), polyether sulfone (PES), polyetheretherketone (PEEK), polymethyl methacrylate (PMMA), polyvinyl chloride (PVC) and polycarbonate (PC).

4. The carbon nanomaterial-based structure according to claim 1 , wherein the carbon nanomaterial comprises at least one selected from the group consisting of carbon fibers, graphene, carbon nanotubes, graphite, carbon quantum dots, graphene nanoplates (GNPs), graphene oxide, amorphous carbon and carbon black.

5. The carbon nanomaterial-based structure according to claim 1 , which has a sheet resistance ranging from 10 ohm/sq to 500 ohm/sq.

6. The carbon nanomaterial-based structure according to claim 1 , which has a sheet resistance uniformity with a sheet resistance non-uniformity of 20% or less.

7. The carbon nanomaterial-based structure according to claim 1 , which has a visible light transmission of 80% or more.

8. The carbon nanomaterial-based structure according to claim 1 , which has a water permeability of 5×10 −1 g/m 2 -day or less.

9. A flexible transparent electrode comprising the carbon nanomaterial-based structure as defined in claim 1 .

10. The carbon nanomaterial-based structure according to claim 1 , wherein the polymer resin layer and the carbon nanomaterial layer are in direct contact with each other.

Assignees

• Korea Inst Sci & Tech

Inventors

• Seo Young Min
• Bae Sukang

Classifications

• H01B1/24

  the conductive material comprising carbon-silicon compounds, carbon or silicon · CPC title

• B32B27/06

  as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08)} · CPC title

• B32B2264/108

  Carbon, e.g. graphite particles · CPC title

• B32B2250/02

  2 layers · CPC title

• B32B27/281

  comprising polyimides · CPC title