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A gold-coated silver-graphene-based aqueous ink and its application in inkjet printing transparent patterned conductive electrodes

An alkenyl water-based, graphene technology, applied to the conductive layer on the insulating carrier, application, printing, etc., can solve the problem of silver being easily oxidized, and achieve high practical application value, controllable products, and simple preparation process.

Active Publication Date: 2016-06-01
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are also reports in the literature that graphene oxide and silver nanoparticles are composited for inkjet printing, but silver is easily oxidized, so the composite ink of graphene oxide and silver has limitations.

Method used

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  • A gold-coated silver-graphene-based aqueous ink and its application in inkjet printing transparent patterned conductive electrodes
  • A gold-coated silver-graphene-based aqueous ink and its application in inkjet printing transparent patterned conductive electrodes
  • A gold-coated silver-graphene-based aqueous ink and its application in inkjet printing transparent patterned conductive electrodes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The composition of gold-coated silver-graphene-based water-based ink includes ink active components and solvents; the mass of ink active components accounts for 2.4% of the total mass, and is composed of graphene oxide and sheet-shaped gold-coated silver nanoparticles with a mass ratio of 0.5; solvent for water.

[0026] 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 at room temperature overnight to obtain the obtained product.

[0027] Synthesis of flaky gold-coated silver nanoparticles: Dissolve 100 μL of 0.1mol / L sodium citrate solution and 45 μL of 0.1mol / L silver nitrate solution in 50 mL of water, then add 100 μL of 30 wt% hydrogen peroxide solution, Stir vigorously, then inject 2500 μL of 0.1mol / L iced sodium bor...

Embodiment 2

[0032] The composition of gold-coated silver-graphene-based water-based ink includes ink active components and solvents; the quality of ink active components accounts for 4.5% of the total mass, and is composed of graphene oxide and gold-coated silver nanoparticles with a mass ratio of 0.2; the ink solvent is 20% volume concentration of acetone solution.

[0033] 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.

[0034] Synthesis of gold-coated 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 to colorless to obtain ...

Embodiment 3

[0038] The composition of gold-coated silver-graphene-based water-based ink includes ink active components, solvents and additives; the mass of ink active components accounts for 10% of the total mass, and the graphene and gold-coated silver obtained by the liquid phase exfoliation method with a mass ratio of 0.15 Composition of nanoparticles; ink solvent is ethyl acetate saturated aqueous solution at 30°C; additive is 5wt% polyvinylpyrrolidone solution, accounting for 1% of the total ink volume.

[0039] Synthesis of gold-coated silver nanoparticles: 100 μL of 10wt% tartaric acid solution and 50 μL of 10wt% silver nitrate solution were added to 1 mL of water, and stirred at room temperature until the color changed from white to colorless to obtain a mixed solution A; 49 μL of 0.1mol Mix / L ascorbic acid and 49 μL 5mmol / L potassium iodide, add it into water at 80°C whose volume is 1000 times that of the ascorbic acid solution, stir evenly to obtain mixed solution B; inject mixe...

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Abstract

The invention belongs to the technical field of electronic printing materials, and discloses silver-wrapped-in-gold and graphene based aqueous ink and an application of a transparent patternconduction electrode obtained through ink-jet printingof the silver-wrapped-in-gold and graphene based aqueous ink. The prepared silver-wrapped-in-gold and graphene based aqueous inkcomprises an ink active component, a solvent and an additive, wherein the ink active component adopts composition of graphene and silver-wrapped-in-gold nano-particles or composition of graphene oxide and silver-wrapped-in-gold nano-particles; the mass percentage of the ink active component is 0.1%-30%, the mass ratio of the silver-wrapped-in-gold nano-particles to the grapheneor the graphene oxide is smaller than or equal to 100%, and the volume of the additive is 0%-2% of that of a solvent; and the diameter of each of the graphene and the graphene oxide is smaller than 2 mu m. Compared with the prior art, the prepared silver-wrapped-in-gold and graphene based aqueous ink has the characteristics of environmental protection, simple preparation process and low aftertreatment temperature, the electrode with better conductivity and stability can be acquired, and the ink can be applied to the technical field of electronic printing materials.

Description

technical field [0001] The invention belongs to the technical field of electronic printing materials, and specifically relates to a gold-coated silver-graphene-based water-based ink and the application of ink-jet printing transparent patterned conductive electrodes. Background technique [0002] Inkjet printing technology has the advantages of digitalization, additive manufacturing, reduced material waste, and good compatibility with different substrate materials. Its development has promoted the development and application of new ink materials. 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/30C09D11/52B41M5/00H01B5/14
CPCB41M5/00C09D11/30C09D11/52H01B5/14
Inventor 李立宏宋延林冉为李风煜
Owner INST OF CHEM CHINESE ACAD OF SCI
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