Conducting film and manufacturing method thereof, electronic device and manufacturing method thereof

A manufacturing method and technology of electronic devices, applied in the direction of cable/conductor manufacturing, conductive materials dispersed in non-conductive inorganic materials, chemical instruments and methods, etc., can solve the problem of destroying single-walled carbon nanotube films, substrate restrictions, inapplicability and other problems, to achieve the effects of good conductivity, improved dispersion, and high production efficiency

Inactive Publication Date: 2009-10-07
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, post-processing is limited by the substrate used, and sometimes it may damage the single-walled carbon nanotube film and is not applicable.

Method used

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  • Conducting film and manufacturing method thereof, electronic device and manufacturing method thereof
  • Conducting film and manufacturing method thereof, electronic device and manufacturing method thereof
  • Conducting film and manufacturing method thereof, electronic device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] In order to form a transparent conductive film made of single-walled carbon nanotubes on glass substrates and PET substrates, a solution of dissolving Nafion in water or ethanol (hereinafter referred to as a Nafion-water solution for dissolving Nafion in water, will dissolve Nafion Single-walled carbon nanotubes were dispersed in a solution of ethanol (called Nafion-ethanol solution), and this solution was used to form a transparent conductive film made of single-walled carbon nanotubes by a vacuum filtration method. Detailed description will be given below.

[0070] As the single-walled carbon nanotube, a single-walled carbon nanotube obtained from the Chengdu Organic Institute (Chinese Academy of Sciences) was used. The single-walled carbon nanotubes are based on methane (CH 4 ) as a raw material, CoMo (cobalt molybdenum) as a catalyst, synthesized by chemical vapor deposition (CVD) at 1000 ° C. The length of the single-wall carbon nanotube is about 50 μm, and the p...

Embodiment 2

[0083] In order to form a transparent conductive film made of single-walled carbon nanotubes on glass substrates and PET substrates, in a solution obtained by dissolving Nafion in a mixed solvent of water and ethanol (hereinafter referred to as Nafion-water / ethanol solution) Single-walled carbon nanotubes are dispersed, and the solution is used to form a transparent conductive film made of single-walled carbon nanotubes by a vacuum filtration method. Detailed description will be given below.

[0084] As single-walled carbon nanotubes, Nafion, water and ethanol for diluting and dissolving Nafion, the same substances as in Example 1 were used. In addition, an experiment was performed first, and the same pretreatment (oxidation treatment and reflux treatment) as in Example 1 was performed.

[0085] In order to form a transparent conductive film formed of single-walled carbon nanotubes, a vacuum filtration method is used. First, single-walled carbon nanotubes were dispersed in N...

Embodiment 3

[0091] The conductive film formed on the PET substrate was hot-pressed at 80-150° C. under a pressure of 10 MPa for only 1 minute. exist Figure 18 Among them, the vertical axis represents the sheet resistance value after hot-pressing treatment (R(T)) and the sheet resistance value before hot-pressing treatment (R(T) initial ), the horizontal axis represents the hot-pressing temperature. The softening point of the perfluorosulfonic acid polymer used was 120°C. Even at temperatures below the softening point, the sheet resistance can be reduced by about 10% by hot pressing. If hot pressing is performed at a temperature above the softening point, the sheet resistance value can be reduced by about 20%. When the hot-pressing treatment is performed at a temperature above the softening point of the perfluorosulfonic acid-based polymer used, the improvement of the electrical conductivity is particularly remarkable.

[0092] As described above, since according to this embodiment, s...

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Abstract

The invention provides a conducting film which can be easily manufactured in high production efficiency and is formed by low-resistivity carbon nano tubes and a manufacturing method thereof. Carbon nano tubes are dispersed in solution with perfluoro sulfonated polymer as dispersant dissolved inside. A film with a structure that perfluoro sulfonated polymer is remained among the carbon nano tubes is formed by utilizing the solution with dispersed carbon nano tubes and vacuum filtration; and the conducting film formed by the carbon nano tubes is manufactured through dying the film. Water, ethanol or solvent containing water and ethanol can be used as the solvent.

Description

technical field [0001] The present invention relates to a conductive film and its manufacturing method, an electronic device and its manufacturing method, which are applicable to various electronic devices using, for example, a flexible transparent conductive film formed of single-walled carbon nanotubes. Background technique [0002] Recently, single-walled carbon nanotubes are widely used for the production of flexible transparent conductive films for the purpose of application to electronic devices (see Non-Patent Documents 1 to 5). As the method for manufacturing the transparent conductive film formed by the single-walled carbon nanotubes, the following several kinds are known: solvent dropping method (refer to non-patent document 6), spin coating method (refer to non-patent document 5), air brush method (air brush) (see Non-Patent Document 1), dip molding method (see Non-Patent Document 7), and LB method (Langmuir-Blodgett method) (see Non-Patent Document 8). However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B5/16H01B1/24C08L81/00C08K3/04C08J5/18
CPCC01B2202/30C01B2202/34C08J5/18C01B31/0233C01B2202/02C08J2381/08C01B2202/06H01B1/24C01B31/0273B82Y40/00C01B2202/28B82Y30/00C01B31/026C01B32/162C01B32/17C01B32/174Y02P20/582
Inventor 梶浦尚志榎修李勇明张婧高濂孙静刘阳桥王家平
Owner SONY CORP
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