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Transparent conductive substrate, preparation method thereof and application thereof

A technology of transparent conduction and transparent substrate, which is applied in the direction of cable/conductor manufacturing, conductive layer on insulating carrier, circuit, etc., which can solve the problems of poor patterning effect, poor conductivity and light transmittance, and high preparation cost

Active Publication Date: 2019-03-26
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of poor conductivity and light transmittance of the transparent conductive substrate, poor patterning effect or complicated patterning process and high preparation cost in the prior art, and to provide a transparent conductive substrate and a preparation method thereof And application, this method is easy to control the thickness of the conductive coating, so that the conductivity and light transmittance of the transparent conductive substrate are good, and this method can not only quickly prepare a large-area transparent conductive substrate, but also directly realize patterning to meet multiple scenarios and complex scenarios

Method used

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  • Transparent conductive substrate, preparation method thereof and application thereof
  • Transparent conductive substrate, preparation method thereof and application thereof
  • Transparent conductive substrate, preparation method thereof and application thereof

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preparation example Construction

[0024] The first aspect of the present invention provides a method for preparing a transparent conductive substrate, such as figure 1 As shown, wherein, the method includes the following steps:

[0025] (a) uniformly coating the nano-silver wire dispersion on the surface of the transparent substrate 1, and pre-drying to obtain the substrate 2 coated with the nano-silver wire coating;

[0026] (b1) subjecting the base material 2 coated with the nano-silver wire coating to patterned exposure treatment, cleaning and developing, heating and curing to obtain a transparent conductive substrate 3, or

[0027] (b2) Expose the entire surface of the base material 2 coated with the silver nano wire coating, and perform heat curing to obtain a transparent conductive substrate 3 .

[0028] According to the method of the present invention, the silver nano wire dispersion liquid comprises the following components:

[0029]

[0030]

[0031] According to the method of the present inve...

Embodiment 1

[0060] Prepare nano-silver wire dispersion (nano-silver wire 1 is 100 parts by weight; dimethylaminoethyl methacrylate is 5 parts by weight, polyurethane acrylate is 5 parts by weight, 2,4,6-trimethylbenzoyl- Diphenylphosphine oxide is 0.5 parts by weight; the auxiliary agent is leveling agent BYK333 0.2 parts by weight; the concentration of the silver nanowire dispersion is diluted to 4 mg / mL by diluting solvent ethanol). The prepared dispersion was uniformly coated on the glass surface by slit coating, and pre-dried at 40°C for 30 minutes. The preset pattern is the whole surface conductive transparent substrate, and the direct-write UV exposure treatment is carried out through the exposure machine, and the output power of the UV lamp is 20W / cm 2 , the exposure time is 8s, and the light curing is finalized. And heated and cured at 300°C for 30 minutes to obtain a whole-surface transparent conductive substrate, see figure 1 .

[0061] The light transmittance of the visible ...

Embodiment 2

[0064] Prepare nano-silver wire dispersion liquid (nano-silver wire 1 is 100 parts by weight; acryloyl morpholine (ACMO) is 15 parts by weight, polyester acrylate is 2 parts by weight; 4-dimethylamino-ethyl benzoate is 1.5 parts by weight; parts by weight; the auxiliary agent is the adhesion promoter BYK45100.4 parts by weight; the concentration of the silver nanowire dispersion is diluted to 0.25 mg / mL by using the diluting solvent propylene glycol methyl ether. The prepared dispersion liquid was uniformly coated on the surface of polyethylene terephthalate (PET) film by slit coating method, and pre-dried at 80° C. for 10 minutes. The preset pattern is selectively exposed through a maskless exposure machine, the exposure time is 3s, and the preset pattern is photocured and finalized. Use tert-butanol to clean and develop the transparent substrate, wash off the unexposed coating, heat and dry it, and heat and cure it at 100°C for 70 minutes to obtain a transparent conductive s...

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Abstract

The invention relates to the field of conductive materials and discloses a transparent conductive substrate, a preparation method and an application thereof. The method comprises the steps of (a) uniformly coating the surface of a transparent substrate with a nano silver wire dispersion liquid and performing pre-baking to obtain a substrate coated with a nano silver wire coating, (b1) performing pattern exposure treatment on the substrate coated with the nano silver wire coating and performing cleaning development and heat curing to obtain the transparent conductive substrate, or (b2) performing whole surface exposure treatment on the substrate coated with the nano silver wire coating and performing heat curing to obtain the transparent conductive substrate. The prepared transparent conductive substrate has good conductivity and light transmittance, a large-area transparent conductive substrate can be prepared by the method, the patterning can be directly realized, and the applicationof multiple scenes and complicated scenes is satisfied.

Description

technical field [0001] The invention relates to the field of conductive materials, in particular to a transparent conductive substrate and a preparation method and application thereof. Background technique [0002] Transparent conductive materials are the basic materials of the modern optoelectronic manufacturing industry, and have broad application prospects in optoelectronic fields such as displays, sensors, touch screens, and lighting. Transparent conductive glass and transparent conductive film based on indium-doped tin oxide (ITO) materials are currently the most widely used transparent conductive substrates. With the development of bendable LED displays, mobile terminals, wearable devices, smart home appliances and other products, In the future, there will be a strong demand for flexible printed electronics and patterning. Due to the inherent problems of poor bendability, poor conductivity and low light transmittance of ITO films, it is difficult to overcome. In recent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B1/02H01B13/00B82Y30/00
CPCB82Y30/00H01B1/02H01B5/14H01B13/00
Inventor 张兴业王海燕宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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