Manufacturing method and system of transparent patterning carbon nano tube conducting thin film

Abstract

The invention discloses a manufacturing method and system of a transparent patterning carbon nano tube conducting thin film. The manufacturing method of the transparent patterning carbon nano tube conducting thin film comprises the following steps that (1) the surface of a base material is coated with a macromolecule pattern layer by means of the technologies such as printing, wherein the macromolecule pattern layer is provided with set patterns and can be dissolved or peeled off; (2) the area, not coated with the macromolecule pattern layer, of the surface of the base material is coated with at least a transparent conducting layer by means of the technologies such as printing or coating, wherein the transparent conducting layer is formed mainly by carbon nano tubes; (3) the macromolecule pattern layer is dissolved by means of a solvent which can dissolve the macromolecule pattern layer, or the macromolecule pattern layer is directly peeled off, or the macromolecule pattern layer and the carbon nano tube conducting layer on the surface of the macromolecule pattern layer are directly peeled off, the transparent conducting layer complementary with the set patters is left, and then the transparent patterning carbon nano tube conducting thin film is obtained. The manufacturing method and system of the transparent patterning carbon nano tube conducting thin film has the advantages of being simple in technology, low in cost, capable of manufacturing transparent patterning carbon nano tube conducting thin films which are large in area, large in line width, and high in quality continuously, quite high in production efficiency, and suitable for industrial production.

Description

technical field [0001] The invention relates to a production method of a flexible transparent conductive film, in particular to a full printing industrialized preparation method capable of realizing patterned carbon nanotube transparent conductive film. Background technique [0002] Transparent conductive film (TCF) is an important optoelectronic material, which has a wide range of applications in touch screens, solar cells, flat panel displays, and light-emitting diodes. Currently the most widely used and most mature is indium tin oxide (ITO) thin film. Although ITO still dominates the transparent conductive film market, the limited resources of indium mines, especially the large demand for ITO in the flat panel display industry in recent years, have caused the price of indium to fluctuate greatly. At the same time, the ITO thin film also has many problems such as the fragility and lack of flexibility of the ITO layer and the high cost brought by the preparation process, w...

AI Technical Summary

Problems solved by technology

Although this approach can combine the coating and etching processes in the traditional touch screen process into one, greatly reducing production costs and improving production efficiency, but there are defects such as limited size and low yield, which limit its use in industrial production; The second is to prepare the entire carbon nanotube transparent conductive film first, and then form a carbon nanotube transparent conductive electrode by patterning

This patterning method mainly uses laser ablation and plasma etching to etch patterns on the surface of the carbon nanotube film. This method is clean and pollution-free, but the production efficiency is low, especially in the case of large-area and large-linewidth etching. The current etching process cannot meet the requirements of use

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