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Graphene transparent conductive film and preparation method thereof

A technology of transparent conductive film and graphene, which is applied in the direction of cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of inapplicability to large-scale production, high temperature in the growth process, and high production cost, so as to promote wide application and low cost , The effect of simple preparation process

Inactive Publication Date: 2015-12-30
QINGDAO UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current main method for preparing graphene conductive films is chemical vapor deposition (CVD), which is expensive in equipment, high in the growth process temperature, and high in production costs, and is not suitable for large-scale production.

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  • Graphene transparent conductive film and preparation method thereof

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Embodiment 1

[0025] The preparation method of the graphene transparent conductive film described in the present embodiment comprises the following steps:

[0026] 1. Prepare graphene oxide by the Hummers method, take 0.5 g of the graphene oxide, disperse it in 100 g of ethanol to obtain mixture A, and raise the temperature to 60 ° C;

[0027] Dissolve 1g of vinyltrimethoxysilane in 10g of ethanol to obtain a mixed solution with a concentration of 10%, that is, mixture B; then slowly add mixture B to mixture A, stir and react at 60°C for 3h to obtain mixture C;

[0028] Add 5ml of hydrazine hydrate to the mixture C, stir and react at 75°C for 10h; finally, filter and wash with ethanol and deionized water respectively, and freeze-dry to obtain modified reduced graphene powder;

[0029] 2. Disperse 0.1 g of the modified reduced graphene powder in 20 g of ethyl acetate solvent by ultrasonic dispersion to obtain a graphene solution;

[0030] 3. Mix the graphene solution and polyurethane in a m...

Embodiment 2

[0032] The preparation method of the graphene transparent conductive film described in the present embodiment comprises the following steps:

[0033] 1. Prepare graphene oxide by the Hummers method, take 0.5 g of the graphene oxide, disperse it in 100 g of ethanol to obtain mixture A, and raise the temperature to 60 ° C;

[0034] Dissolve 1g of vinyltrimethoxysilane in 10g of ethanol to obtain a mixed solution with a concentration of 10%, that is, mixture B, then slowly add mixture B to mixture A, stir and react at 60°C for 3h to obtain mixture C;

[0035] Add 5ml of hydrazine hydrate to the mixture C, stir and react at 75°C for 10h; finally, filter and wash with ethanol and deionized water respectively, and freeze-dry to obtain modified reduced graphene powder;

[0036] 2. Disperse 0.1 g of the modified reduced graphene powder in 20 g of ethyl acetate solvent by ultrasonic dispersion to obtain a graphene solution;

[0037] 3. Mix the graphene solution and polyurethane in a m...

Embodiment 3

[0040] The preparation method of the graphene transparent conductive film described in the present embodiment comprises the following steps:

[0041] 1. Prepare graphene oxide by the Hummers method, take 0.5 g of the graphene oxide, disperse it in 100 g of ethanol to obtain mixture A, and raise the temperature to 60 ° C;

[0042] Dissolve 1g of vinyltrimethoxysilane in 10g of ethanol to obtain a mixed solution with a concentration of 10%, that is, mixture B, then slowly add mixture B to mixture A, stir and react at 60°C for 3h to obtain mixture C;

[0043] Add 5ml of hydrazine hydrate to the mixture C, stir and react at 75°C for 10h; finally, filter and wash with ethanol and deionized water respectively, and freeze-dry to obtain modified reduced graphene powder;

[0044] 2. Disperse 0.1 g of the modified reduced graphene powder in 20 g of ethyl acetate solvent by ultrasonic dispersion to obtain a graphene solution;

[0045] 3. Mix the graphene solution and polyurethane in a m...

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Abstract

The invention provides a graphene transparent conductive film and a preparation method thereof. Firstly, graphene oxide is modified and reduced so that modified and reduced graphene can be obtained, then the modified and reduced graphene is transferred to a substrate through polyurethane, the modified and reduced graphene is stably bonded to the substrate under the action of ultraviolet curing, polymer is removed through a thermal treatment method, and the graphene film can have good conductivity and transparency. According to the method for preparing the graphene transparent conductive film, no expensive experimental devices are needed, and the material utilizing rate is very high; the prepared graphene film is uniform and compact and good in uniformity. According to the graphene transparent conductive film and the preparation method thereof, cost can be easily reduced, raw materials are saved, the method is suitable for industrial production, and good market application prospects are achieved.

Description

technical field [0001] The invention belongs to the field of transparent conductive film production, in particular to a graphene transparent conductive film and a preparation method thereof. Background technique [0002] The dye-sensitized solar cell is mainly composed of a photoanode composed of an upper substrate transparent conductive layer, a porous nanocrystalline film and a dye sensitizer, an electrolyte, and a counter electrode composed of a lower substrate transparent conductive layer / platinum catalyst. Among them, the conductive layer in the upper substrate and the counter electrode is mainly indium tin oxide (ITO) or fluorine-doped tin oxide (FTO). development and application. At the same time, the transparent conductive layer is also widely used in other types of solar cells, such as organic solar cells, quantum dot-sensitized solar cells, perovskite solar cells, etc. [0003] Graphene is a single-layer carbon atom material. It is a two-dimensional structure mat...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B1/04
Inventor 董立峰逄贝莉
Owner QINGDAO UNIV OF SCI & TECH
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