Carbon nanotube film and composite film based on same

A carbon nanotube composite, carbon nanotube film technology, applied in the direction of the conductive layer on the insulating carrier, can solve the problems of uneven distribution of carbon nanotubes, low sheet resistance, etc.

Active Publication Date: 2010-12-22
BEIJING FUNATE INNOVATION TECH
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Problems solved by technology

[0004] However, in the carbon nanotube film obtained by the preparation method of the above-mentioned carbon nanotube film, the distribution of carbon nanotubes is uneven and distributed in all directions, so that the resistance of the carbon nanotube film in all directions is basically uniform, and has a resistance and a plurality of carbon nanotubes are intertwined to form large-diameter carbon nanotube bundles. In applications, due to the formation of good conductive channels by these large-diameter carbon nanotube bundles, the sheet resistance of the carbon nanotube film relatively low

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  • Carbon nanotube film and composite film based on same
  • Carbon nanotube film and composite film based on same
  • Carbon nanotube film and composite film based on same

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[0035] see figure 1 and figure 2 , the embodiment of the present invention provides a method for preparing a transparent carbon nanotube film, which includes the following steps:

[0036] Step 1: Prepare a carbon nanotube film. The method for preparing a carbon nanotube film by the film drawing method in the embodiment of the present invention specifically includes the following steps:

[0037](1) Prepare a carbon nanotube array 116 on a substrate 114 .

[0038] In the present embodiment, the carbon nanotube array 116 is a super-arranged carbon nanotube array, and the preparation method of the super-arranged carbon nanotube array 116 adopts a chemical vapor deposition method, and its specific steps include: (a) providing a Flat base 114, this base can be selected P-type or N-type silicon base, or selects the silicon base that has formed oxide layer for selection, present embodiment preferably adopts the silicon base of 4 inches; (b) uniformly form a catalyst layer on the ba...

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Abstract

The invention relates to a carbon nanotube film. The carbon nanotube film comprises a plurality of carbon nanotubes which are basically parallel with one another and are arranged basically parallel to the surface of the carbon nanotube film, wherein the carbon nanotube film has resistance anisotropy, and the sheet resistance of the carbon nanotube film is of megohm level in the direction vertical to the carbon nanotube arrangement. The invention also provides a carbon nanotube composite film, which comprises a polymer substrate and the carbon nanotube film in the polymer substrate, wherein the carbon nanotube film comprises a plurality of carbon nanotubes which are basically parallel with one another and are arranged basically parallel to the surface of the carbon nanotube film; the carbon nanotube film has resistance anisotropy, and the sheet resistance of the carbon nanotube film is of megohm level in the direction vertical to the carbon nanotube arrangement. The megohm level carbon nanotube film or the carbon nanotube composite film can be applied in the fields of transparent electrodes, thin film transistors, touch screens and the like.

Description

technical field [0001] The invention relates to a thin film, in particular to a carbon nanotube film and a composite film based on the carbon nanotube film. Background technique [0002] Since the first discovery of carbon nanotubes (Carbon Nanotube, CNT), nanomaterials represented by carbon nanotubes have attracted great attention due to their unique structures and properties. In recent years, with the continuous deepening of research on carbon nanotubes and nanomaterials, their broad application prospects continue to emerge ("Carbon Nanotube-the Route to Applications", Ray H.Baughman, et a1.Science297, 787 (2002)) . Due to the unique electromagnetic, optical, mechanical, and chemical properties of carbon nanotubes, a large number of applications in fields such as field emission electron sources, sensors, new optical materials, and soft ferromagnetic materials have been continuously reported. [0003] Carbon nanotube film (Carbon Nanotube Film, CNT Film) is one of the spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14
Inventor 冯辰潜力刘亮
Owner BEIJING FUNATE INNOVATION TECH
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