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Carbon-nano-tube film and preparation method thereof

一种碳纳米管膜、碳纳米管的技术，应用在碳纳米管、定向碳纳米管、纳米结构制造等方向，能够解决碳纳米管膜透光性影响等问题

Active Publication Date: 2011-06-08
BEIJING FUNATE INNOVATION TECH
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Problems solved by technology

[0004] However, in the carbon nanotube film obtained by direct pulling, the adjacent and side-by-side carbon nanotubes will gather and contact each other due to the van der Waals force to form a larger diameter carbon nanotube bundle, which has a higher density. , so that the light transmittance of the carbon nanotube film is affected

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  • Carbon-nano-tube film and preparation method thereof
  • Carbon-nano-tube film and preparation method thereof
  • Carbon-nano-tube film and preparation method thereof

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[0036] The embodiment of the present invention provides a method for preparing a carbon nanotube film 100 with better light transmittance, which includes the following steps:

[0037] Step 1: providing a carbon nanotube primary film 120 .

[0038] see figure 1 , the carbon nanotube primary film 120 can be obtained by directly pulling from a carbon nanotube array 150, which specifically includes the following steps:

[0039] (1) A carbon nanotube array 150 is provided.

[0040] The carbon nanotube array 150 is formed on the surface of a growth substrate by chemical vapor deposition, preferably a super-aligned carbon nanotube array 150 . The carbon nanotube array 150 includes a plurality of carbon nanotubes substantially parallel to each other and perpendicular to the surface of the growth substrate. By controlling the growth conditions, the carbon nanotube array 150 basically does not contain impurities, such as amorphous carbon or residual catalyst metal particles. For the...

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Abstract

The invention relates to a method for preparing a carbon-nano-tube film. The method comprises the following steps of: providing a carbon-nano-tube primary film which is formed by a plurality of carbon-nano-tubes, wherein the plurality of carbon-nano-tubes are arranged along the same direction in a preferential orientation mode; and scanning the carbon-nano-tube primary film row by row along the preferential orientation direction parallel to the plurality of carbon-nano-tubes by adopting a laser beam so as to form a plurality of thinning areas in the partial position in the carbon-nano-tube primary film, wherein the plurality of thinning areas are arranged into at least one row along the preferential orientation direction of the plurality of carbon-nano-tubes. The invention also relates toa carbon-nano-tube film which can be applied to the fields of transparent electrodes, thin-film transistors, touch screens, and the like.

Description

technical field [0001] The invention relates to a carbon nanotube film and a preparation method thereof, in particular to a carbon nanotube film with better light transmission and a preparation method thereof. Background technique [0002] Carbon Nanotube (CNT) is a hollow tube rolled from graphene sheets, which has excellent mechanical, thermal and electrical properties, so it has a wide range of applications. Since the diameter of a single carbon nanotube is only a few nanometers to tens of nanometers, it is difficult to process. In order to facilitate practical applications, people try to use a large number of carbon nanotubes as raw materials to make macroscopic structures with larger sizes. Carbon nanotube film (Carbon Nanotube Film, CNT Film) is one of the specific forms of this macrostructure. [0003] In the Chinese patent application CN101239712A published on August 13, 2008, Feng Chen and others disclosed a carbon nanotube film obtained by directly pulling from a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02B82B3/00
CPCC01B31/0206B82Y40/00B82Y30/00C01B32/15C01B32/158C01B32/159Y10S977/742Y10S977/902Y10T428/24273Y10T428/2457Y10T428/24603Y10T428/24893C01B2202/08
Inventor 刘亮冯辰
Owner BEIJING FUNATE INNOVATION TECH
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