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Flexible cnts/metal nanowire composite transparent conductive film, its preparation method and application

A metal nanowire, transparent conductive film technology, applied in cable/conductor manufacturing, nanotechnology, nanotechnology, etc., can solve the problem of inability to solve the adhesion of graphene films, affect the contact resistance of metal nanowires, and affect the photoelectric properties of composite films, etc. problem, to achieve the effect of being conducive to large-scale industrial production, improving the migration speed, and ensuring the stability of electrical conductivity

Active Publication Date: 2017-11-24
浙江汉纳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in addition to improving the conductivity of graphene, this method cannot solve the problems of poor adhesion of graphene film and complicated preparation process, and the etching process will affect the resistance of silver nanowires. The resistance of graphene conductive film prepared by wet method is poor, which affects the composite Photoelectric properties of thin films
Jing et al prepared a mixed solution of carbon nanotubes and metal nanowires, etc., and prepared a low-resistance metal nanowire / carbon nanotube conductive film (CN104318981A) by spraying, dipping or transfer printing. The surfactant used to disperse carbon nanotubes will affect the contact resistance between metal nanowires and between metal nanowires and carbon nanotubes

Method used

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  • Flexible cnts/metal nanowire composite transparent conductive film, its preparation method and application
  • Flexible cnts/metal nanowire composite transparent conductive film, its preparation method and application
  • Flexible cnts/metal nanowire composite transparent conductive film, its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0044] a) Coat 5mg / mL silver nanowire conductive ink on the coated surface of PET transparent substrate with No. 12 wire rod, and dry at 100°C for 2min. The surface resistance of the silver nanowire film is 430ohm / sq, and the light transmittance is 90.8 % (if not specified below, all refer to the light transmittance of visible light), the haze is 1.5%, wherein the diameter of silver nanowires is about 40nm, and the length is about 20μm. components;

[0045] b) preparing a single-walled carbon nanotube conductive film on a metal flexible substrate by CVD;

[0046] c) transfer the single-walled carbon nanotube conductive film on the metal flexible substrate to the surface of the silver nanowire conductive film in a roll-to-roll form to prepare a silver nanowire / carbon nanotube composite conductive film (refer to CN103031531A, etc.);

[0047] d) The obtained composite transparent conductive film has a surface resistance of 150 ohm / sq, a light transmittance of 89.2%, and a haze of ...

Embodiment 2

[0049] a) growing a single-walled carbon nanotube conductive film on a metal flexible substrate by CVD;

[0050] b) The single-walled carbon nanotube conductive film grown on the metal flexible substrate is transferred to the coated surface of the PET transparent substrate in the form of roll-to-roll, and the surface resistance of the prepared single-walled carbon nanotube conductive film is 900ohm / sq;

[0051] c) 5 mg / mL silver nanowire conductive ink is coated on the surface of the single-walled carbon nanotube conductive film with a No. 12 wire rod, and dried at 100° C. for 2 minutes to prepare a carbon nanotube / silver nanowire composite conductive film (refer to CN103031531A, etc.), Wherein the silver nanowire has a diameter of 30nm and a length of 25 μm, and the conductive ink can also include suitable components known in the industry such as dispersants and resins;

[0052] d) The obtained composite transparent conductive film has a surface resistance of 120 ohm / sq and...

Embodiment 3

[0054] a) transfer PET substrate coating surface with 1mg / mL single-wall carbon nanotube dispersion liquid through suction filtration to make single-wall carbon nanotube conductive film, the surface square resistance of the prepared single-wall carbon nanotube conductive film is 2000ohm / sq (refer to CN102602118A, CN102110489B, etc.);

[0055] b) Apply 5 mg / mL silver nanowire conductive ink to the surface of the single-walled carbon nanotube conductive film with a No. 12 wire rod, and dry it at 100°C for 2 minutes. The surface square resistance of the carbon nanotube / silver nanowire composite conductive film is 215ohm. / sq, wherein the silver nanowires have a diameter of 30nm and a length of 30 μm, and the conductive ink can also include suitable components known in the industry such as dispersants and resins;

[0056] c) preparing a single-walled carbon nanotube conductive film on a metal flexible substrate by CVD;

[0057] d) The single-walled carbon nanotube conductive fil...

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Abstract

The invention discloses a flexible carbon nanometer tubes (CNTs) / metal nanowire composite transparent conductive membrane, and a preparation method and application thereof. The flexible CNTs / metal nanowire composite transparent conductive membrane comprises a transparent substrate and a composite conductive membrane disposed on the transparent substrate, wherein the composite conductive membrane is mainly formed by compounding CNTs and metal nanowires. The flexible CNTs / metal nanowire composite transparent conductive membrane is excellent in conductivity, low in surface resistance, good in stability, high in light transmittance and low in haze, and has wide application prospect in the fields of electronics and photoelectronics. Besides, the preparation process is simple and is easy to implement, the controllability is high, the cost is low, and large-scale industrial production is facilitated.

Description

technical field [0001] The invention particularly relates to a flexible carbon nanotube (CNTs) / metal nanowire composite transparent conductive film and a preparation method and application thereof, belonging to the field of materials. Background technique [0002] With the increasing demand for wearable devices and flexible products, it has become a development trend to apply flexible touch technology to the above fields. However, because the traditional ITO conductive film cannot be bent, other products such as metal nanowires, metal grids, carbon nanotubes and graphene have the advantages of flexible materials. [0003] Although the metal grid technology has cost and performance advantages, there are still many problems, such as serious Murray interference ripples, incompatibility with traditional ICs, and easy oxidation and fracture of metals. However, there are still disadvantages such as complex preparation process, high cost and immature technology. The metal nanowir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/14H01B1/22H01B1/24H01B13/00B82Y30/00
CPCB82Y30/00H01B1/22H01B1/24H01B5/14H01B13/00
Inventor 陈新江其他发明人请求不公开姓名
Owner 浙江汉纳新材料科技有限公司
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