Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Carbon nanotube composite film and method for manufacturing same

A carbon nanotube composite, carbon nanotube technology, applied in the directions of carbon nanotubes, nanocarbons, nanotechnology, etc., can solve the problems of difficulty in obtaining low film resistance, poor mobility, hindering the absorption of conductive polymer dispersants, etc. Achieve smooth electrical conduction, excellent durability, and improve electrical conduction.

Inactive Publication Date: 2020-03-10
NAT INST OF ADVANCED IND SCI & TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the carrier mobility of the conductive polymer is poorer than that of the CNT, it is difficult to obtain low Thin Film Resistor Problems
Furthermore, since the doped conductive polymer strongly absorbs visible light, when it is used as a transparent conductive film, there is a problem that it hinders the absorption of the conductive polymer dispersant.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbon nanotube composite film and method for manufacturing same
  • Carbon nanotube composite film and method for manufacturing same
  • Carbon nanotube composite film and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-A

[0118] 2 g of hydroxypropyl cellulose (HPC) was dissolved in 40 ml of ethanol, followed by adding 10 mg of SWNT and mixing. After the liquid mixture was dispersed by ultrasonic treatment, centrifugation was performed at a rotation speed of 45000 rpm. The supernatant after centrifugation was used as a dispersion.

[0119] The dispersion solution was formed into a film by moving the doctor blade at a predetermined speed on the glass substrate by the doctor blade method. After standing at room temperature for 10 minutes to slightly dry the solvent, it was completely dried on a hot plate (100° C.) to obtain a CNT-containing film.

[0120] Next, according to the method described in Patent Document 5 or Non-Patent Document 3, pulsed light sintering was performed on the CNT-containing film obtained as described above to remove hydroxypropyl cellulose (HPC) as a matrix. Here, each irradiation time is 300 μS, the irradiation period is 1 Hz, and the peak irradiation intensity is 6 kW / ...

Embodiment 1-B

[0126] In this example, an inorganic semiconductor was coated and formed on the CNT conductive film after removal of the non-conductive matrix, and photo-sintering was performed with a flash lamp to move the inorganic semiconductor particles to the connection points of the CNTs.

[0127] After performing pulse light sintering on the CNT-containing film obtained as described in the 2nd line to the 8th line on the 12th page of the above-mentioned application specification, it is washed with 2-propanol and water to completely remove hydroxypropyl cellulose (HPC ), to obtain a CNT conductive film. A 0.05 mol / L acetonitrile solution of cuprous iodide was spin-coated on the CNT conductive film to laminate cuprous iodide, and then irradiated with a xenon flash lamp to perform photo-sintering. The sheet resistance of the obtained CNT composite film was 80 Ω / □, and the transmittance at 550 nm was about 80% (relative value when the transmittance of the glass substrate was 100%). This h...

Embodiment 1-C

[0129] In this example, cuprous bromide was used instead of cuprous iodide (Example 1-B), and a transparent conductive film was produced.

[0130] After performing pulse light sintering on the CNT-containing film obtained as described in the 2nd line to the 8th line on the 12th page of the above-mentioned application specification, it is washed with 2-propanol and water to completely remove hydroxypropyl cellulose (HPC ), to obtain a CNT conductive film. A 0.05 mol / L cuprous bromide acetonitrile solution was spin-coated on the CNT conductive film, and after the cuprous bromide was stacked, a xenon flash lamp was irradiated for photo-sintering. The sheet resistance of the obtained CNT composite film was 80 Ω / □, and the transmittance at 550 nm was about 80% (relative value when the transmittance of the glass substrate was 100%). This has sufficient conductivity for use as a transparent electrode.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The object of the present invention is to provide a carbon nanotube (CNT) network capable of performing good electrical connection, allowing a sufficient amount of current to flow into the film, and controlling the amount of current. , preferably particles such as metal halides, metal oxides, and metal sulfides are distributed between CNTs and CNTs as connection points to construct a network of CNTs or CNT mixed materials.

Description

technical field [0001] The invention relates to a carbon nanotube composite film and a manufacturing method of the composite film. Background technique [0002] The transparent conductive film refers to a film that is transparent and allows electric current to flow. At present, the transparent conductive film is mainly ITO (Indium Tin Oxide, indium tin oxide). The ITO film exhibits excellent performance of a transmittance of 90% and a sheet resistance of about 10 Ω / sq (also referred to as Ω / □ in some cases), but there are problems of depletion of indium resources as a rare metal and lack of flexibility. In addition, since it is manufactured through a vacuum film-forming process, it is also costly. [0003] Therefore, there is a need for a new electrode material to replace ITO. As such a substitute material, carbon nanotubes (hereinafter referred to as "CNT"), metal nanowires, or conductive polymers are required. CNTs with excellent performance and mechanical properties. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/168
CPCC01B32/158H01B1/04Y10S977/75Y10S977/842Y10S977/892Y10S977/932C01B32/178C01G3/05H01B5/14H01B5/16C01P2006/40C01P2006/60B82Y30/00B82Y40/00C09D5/24C09D11/037C09D11/32C09D11/52H01L29/413
Inventor 周英阿澄玲子岛田悟
Owner NAT INST OF ADVANCED IND SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com