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Method for preparing composite nanometer film

A nano-film and conductive polymer technology, applied in the field of manufacturing composite nano-films, can solve the lack of sufficient understanding of the distribution order and looseness of GO materials, the low controllability of the thickness of conductive polymers, and the difficulty in forming ultra-thin GO materials. Conductive polymer layer and other problems, to achieve the effect of easy operation, good flexibility, reasonable and simple preparation method

Inactive Publication Date: 2013-12-18
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

We noticed that in the conductive polymer / GO composites prepared by current methods, GO is mostly in a disordered state, and there is still a lack of sufficient understanding of the distribution order and looseness of GO materials in the composites.
In addition, the thickness controllability of the conductive polymer in the currently prepared conductive polymer / GO intercalation structure is not high, and it is difficult to form an ultra-thin conductive polymer layer

Method used

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  • Method for preparing composite nanometer film
  • Method for preparing composite nanometer film

Examples

Experimental program
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Effect test

example 1

[0050] ①Disperse carboxylated graphene oxide in N,N-dimethylformamide, the concentration of graphene oxide is 3mg / ml to form a graphene oxide dispersion for LB film preparation; dissolve ferric chloride in In ultrapure water, the concentration of ferric chloride is 25mg / ml, forming an oxidizing agent solution for spin-coating film preparation;

[0051] ② Use a micro-injector to extract 500 μl of graphene oxide / N,N-dimethylformamide solution and drop it on the surface of the ultrapure aqueous solution in the LB membrane tank, and wait for N,N-dimethylformamide to volatilize for 40 minutes (minutes) Then start to press the film, and the graphene oxide film has been formed at the gas / liquid interface at this time;

[0052] ③Control the sliding barrier of the LB film equipment to compress the graphene oxide film at a speed of 2mm / min to a film pressure of 12mN / m, and transfer the graphene oxide film to the ITO substrate by vertical film formation with a film formation rate of 0.1m...

Embodiment 2

[0057] In this example, the conductive polymer is polypyrrole, and the preparation process of the flexible composite nano-film is similar to Embodiment 1, so as to obtain a composite nano-film structure in which a single layer of graphene oxide is distributed in polypyrrole.

example 3

[0059] In this example, the conductive polymer is polyaniline, and the preparation process of the flexible composite nano-film is similar to Embodiment 1, so as to obtain a composite nano-film structure in which a single layer of graphene oxide is distributed in polyaniline.

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PUM

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Abstract

The embodiment of the invention discloses a method for preparing a composite nanometer film. The method comprises the following steps of: forming a graphene oxide dispersed solution; dispersing graphene oxides to a substrate by adopting an LB film-forming method to form a graphene oxide film; dissolving an iron-based oxidizing agent into ultrapure water to form an iron-based oxidizing agent solution; coating the iron-based oxidizing agent solution on the graphene oxide film by adopting a spincoating method to form a graphene oxide / iron-based oxidizing agent composite film; placing the substrate in a conductive polymer monomer atmosphere for polymerization reaction to form a graphene oxide / conductive polymer composite nanometer film. The composite film formed according to the method disclosed by the embodiment of the invention has the advantages that the graphene oxides are sequentially dispersed into a conductive polymer, the electric conductivity and flexibility are good and the requirements of different electrode systems on electrode film materials can be met.

Description

technical field [0001] The invention relates to the technical field of electronic thin film materials, in particular to a method for manufacturing a composite nano film. Background technique [0002] In recent years, graphene material has sprung up suddenly, and its excellent mechanical, thermal and electrical properties have become a hot spot in the research of nanomaterials. Further studies have shown that the combination of conductive polymers and graphene materials can greatly improve its performance and stability, and has very important application prospects in flexible displays, electrochemical energy storage, sensors and other fields. [0003] At present, the research on the preparation of conductive polymer / graphene is very active in the world. How to realize the nanoscale dispersion of graphene materials in conductive polymers to fully exert the synergistic effect of graphene is a key issue. However, due to the limitations of the preparation process and the poor di...

Claims

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Application Information

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IPC IPC(8): C08G61/12C08G73/02C08G73/06C08K9/00C08K3/04
Inventor 杨亚杰张鲁宁杨文耀徐建华蒋亚东
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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