Preparing device of carbon nano tube thin film and method

Abstract

The invention discloses a preparing device of a carbon nano tube thin film and a method. The device comprises a container main body (1), a buffering clapboard (4) and a solvent guiding-out part (5), wherein the buffering clapboard (4) is located at the lower portion of the container main body (1), and the solvent guiding-out part (5) is communicated with the interior of the container main body (1)through a through hole in the side wall of the container main body (1) and extends to the outside of the container main body (1). Meanwhile, the invention discloses the method for adopting the devicefor preparing the sequentially-arranged carbon nano tube thin film. By means of the device and the method, the liquid level descending speed can be controlled by controlling the length of a semipermeable pipeline, and thus the self-assembly speed of carbon nano tubes on the surface of a matrix is controlled. The preparing device and the method have the advantages that the liquid level descends steadily, the structure is simple, the cost is low, and the carbon nano tube thin film is suitable for large-area preparation.

Description

technical field [0001] The invention relates to the field of carbon nanotubes, in particular to a preparation device and method for a carbon nanotube thin film. Background technique [0002] Carbon nanotubes are a new type of carbon material discovered by Iijima of NEC Corporation in Japan in 1991, and can be divided into single-walled carbon nanotubes and multi-walled carbon nanotubes. The special structure of carbon nanotubes determines its special properties, such as high tensile strength and high thermal stability; with the change of the helical mode of carbon nanotubes, carbon nanotubes can exhibit metallic or semiconducting properties. Because carbon nanotubes have an ideal one-dimensional structure and excellent properties in the fields of mechanics, electricity, and heat, they have shown broad application prospects in interdisciplinary fields such as materials science, chemistry, and physics. They are widely used in scientific research and industrial applications. I...

AI Technical Summary

Problems solved by technology

However, there are still various deficiencies in the preparation methods in the prior art. The carbon nanotube film prepared by the method of Cao Qing et al. has a large area of ​​inhomogeneity, and the carbon tube film is multi-layered, which affects the electrical performance (transistor). The bad effect is that in the process of repeated extrusion, carbon tubes will accumulate and form multiple layers, and this process cannot guarantee that each site is truly uniform

[0004] The defect of adopting the method of Hongsik Park or Arnold et al. to prepare carbon nanotubes is that the carbon nanotubes obtained by this method are not a continuous film, but a strip shape, which is not suitable for industrialized large-area processing technology; and Arnold et al. In the method, the minimum trench size can only be 70nm, which has great limitations

Images