Manufacturing process of graphene transparent conductive film

Abstract

The invention relates to a manufacturing process of a graphene transparent conductive film. The manufacturing method includes the steps of 1), uncoiling a copper foil in a vacuum chamber, heating a copper-clad chemical deposition reaction zone by using a resistor, feeding in methane gas and hydrogen, subjecting a copper-clad surface to chemical sedimentation to generate a graphene layer, and then adopting plasma to perform etching processing on the graphene layer; 2), adopting a gravure printing process to obtain an oxidize graphene layer; 3), obtaining an oxide graphene film; 4), coating a copper chloride etching solution which is 200g / L in concentration on a copper-clad face of the oxidize graphene film; 5), subjecting the oxidize graphene film to thermal annealing and reduction; 6), coating resin adhesive, sticking the film for packaging, and finally obtaining the patterned graphene transparent conductive film. The manufacturing process is short in film forming time, and low-cost and large-scale mass manufacturing can be realized; the graphene transparent conduction film is high in electric conductivity, good in flexibility, high in pattern definition, higher in acid and alkali resistance of the transparent conductive film and lower in cost.

Description

technical field [0001] The invention relates to a method for manufacturing a graphene conductive film, in particular to a manufacturing process for a graphene transparent conductive film. Background technique [0002] With the development of science and technology, society's demand for new materials is also increasing. Materials are the material basis for the progress of human civilization and the development of science and technology. The renewal of materials has brought about great changes in people's lives. At present, the vigorous development of new transparent and conductive thin film materials has been widely used in liquid crystal displays, touch screens, smart windows, solar cells, microelectronics, information sensors and even military industries, and is penetrating into other technological fields. Since thin film technology is closely related to various technologies, scientists in various fields are interested in thin film preparation and its properties. [0003]...

AI Technical Summary

Problems solved by technology

However, there are also some disadvantages in the use of indium tin oxide conductive film, including: (1) Indium resources are scarce, resulting in continuous price rises, making ITO an increasingly expensive material, such as spraying, pulsed laser deposition, electroplating, etc.

Moreover, indium oxide has certain toxicity, and unreasonable recycling can easily cause environmental pollution

(2) The brittle nature of ITO makes it unable to meet the performance requirements of some new applications (such as bendable flexible displays, touch screens, organic solar cells), and is not suitable for the production of next-generation flexible electronic devices

However, the addition of a surface dispersant will directly affect the conductivity of graphene, resulting in a significant drop in the conductivity of the prepared conductive film, and graphene oxide is a hydrophilic substance with a greater solubility in aqueous solution than graphene. a lot of