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A graphene-based water-based ink and its inkjet printing transparent patterned conductive electrode application

A kind of alkenyl water-based and graphene technology, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, application, printing, etc., can solve the problems of inkjet pattern conductivity to be improved, and achieve excellent conductivity and transparency, Effect of low post-treatment temperature and improved conductivity

Active Publication Date: 2016-07-20
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the diameter of graphene needs to be controlled in an appropriate range, usually less than 1 / 20 of the diameter of the printing nozzle, the conductivity of the resulting inkjet pattern needs to be improved.
Recently, some researchers have combined graphene and metal materials to improve the electrical conductivity of the material. However, the use of metal and graphene composites for direct inkjet printing and the study of the effect of metal nanostructures on graphene-based transparent electrodes have not yet been completed. see the report

Method used

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  • A graphene-based water-based ink and its inkjet printing transparent patterned conductive electrode application
  • A graphene-based water-based ink and its inkjet printing transparent patterned conductive electrode application
  • A graphene-based water-based ink and its inkjet printing transparent patterned conductive electrode application

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Experimental program
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Effect test

Embodiment 1

[0029] The graphene-based water-based ink is composed of a composite of graphene oxide and silver nanoparticles and water, the mass fraction of the composite of graphene oxide and silver nanoparticles is 2.4%, and the mass ratio of graphene oxide to silver nanoparticles is 0.5; The diameter of graphene is less than 2 μm; the particle diameter of silver nanoparticles is less than 100 nm.

[0030] Synthesis of graphene oxide: the graphene oxide prepared by the improved Hummer method is a golden yellow product; the product is treated with an ultrasonic crusher 200W for 2 hours, and then passed through a 1 μM filter membrane to remove large-scale graphene oxide; the obtained solid is in Vacuum-dried overnight at room temperature to obtain the obtained product.

[0031] Synthesis of silver nanoparticles: 100 μL of 10 wt% sodium citrate solution and 50 μL of 10 wt% silver nitrate solution were added to 1 mL of water, and stirred at room temperature until the color changed from white...

Embodiment 2

[0036] The graphene-based water-based ink is composed of a composite of graphene oxide and silver nanoparticles and an acetone solution with a volume fraction of 20%, the mass fraction of the composite of graphene oxide and silver nanoparticles is 4.5%, and the composite of graphene oxide and silver nanoparticles is The mass ratio of the particles is 0.2; the diameter of the graphene oxide is less than 2 μm; the particle diameter of the silver nanoparticles is less than 100 nm.

[0037] Synthesis of graphene oxide: the graphene oxide prepared by the improved Hummer method is a golden yellow product; the product is treated with an ultrasonic crusher at 200W for 2 hours, and then passed through a 1 μM filter membrane to remove large-sized graphene oxide; the obtained solid Vacuum-dried overnight at room temperature to obtain the obtained product.

[0038] Synthesis of silver nanoparticles: 100 μL of 0.1mol / L sodium citrate solution and 45 μL of 0.1mol / L silver nitrate solution w...

Embodiment 3

[0043] Graphene-based water-based ink consists of a composite of graphene and silver nanoparticles and a saturated aqueous solution of ethyl acetate at 30°C. The mass fraction of the composite of graphene and silver nanoparticles is 3.1%. Graphene is obtained by liquid phase exfoliation , the mass ratio of graphene to silver nanoparticles is 0.15; the diameter of graphene is less than 2 μm; the particle diameter of silver nanoparticles is less than 100 nm.

[0044] Synthesis of silver nanoparticles: 100 μL of 10wt% tartaric acid solution and 50 μL of 10wt% silver nitrate solution were added to 1 mL of water, stirred at room temperature until the color changed from white to colorless to obtain mixed solution A; 49 μL of 0.1mol / Mix L of ascorbic acid and 49 μL of 5mmol / L potassium iodide, add it to water at 80°C whose volume is 1000 times that of the ascorbic acid solution, and stir evenly to obtain a mixed solution B; after heating the mixed solution B to boil, inject the mixed...

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Abstract

The invention discloses graphene-based water-based ink and an application thereof in ink-jet printing of a patterning transparent conducting electrode, belonging to the technical field of electronic printing materials. The graphene-based water-based ink comprises an ink active component and a solvent, wherein the ink active component is graphene, graphene oxide, a compound of the graphene and a silver nanoparticle or a compound of the graphene oxide and the silver nanoparticle, and the weight percent of the ink active component is 0.1%-20%; and the solvent is water or a water liquid with an organic solvent added. Compared with the prior art, the graphene-based water-based ink disclosed by the invention has the characteristics of environment friendliness, simple preparation process and low post-processing temperature, can obtain a high-transparency electrode with preferable conductivity and can be applied to the technical field of electronic printing materials. Besides, the preparation method of the graphene-based water-based ink has high practical application value.

Description

technical field [0001] The invention belongs to the technical field of electronic printing materials, and in particular relates to a graphene-based water-based ink and the application of ink-jet printing patterned transparent conductive electrodes. Background technique [0002] The development of inkjet printing technology has promoted the development and application of new ink materials due to its advantages such as digitization, additive manufacturing, reduction of material waste, and compatibility with different substrates. Important active components of many devices can be inkjet printed, including conductive electrodes, transistors, solar cells, light-emitting diodes, batteries and sensors. However, the development of patterned electrodes with high transparency and low resistivity remains an important challenge, especially in the field of developing highly integrated systems. Although different metal materials have been prepared into solutions in the production of elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/52B41M5/00H01B1/24
CPCB41M5/0023C09D11/52H01B1/22H01B1/24
Inventor 李立宏宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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