Flexible composite transparent conductive film and preparation method thereof

A transparent conductive film, flexible technology, applied in equipment for manufacturing conductive/semiconductor layer, cable/conductor manufacturing, conductive layer on insulating carrier, etc., can solve the problem of large surface roughness, silver nanowire transparent conductive film Low light transmittance, easy oxidation, etc

Inactive Publication Date: 2021-01-08
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can realize a strong connection between silver nanowires and flexible substrates, improve the robust performance of silver nanowire transparent conductive films, and reduce the junction resistance between silver nanowires, the prepared silver nanowire transparent conductive film Low light transmittance, large surface roughness, easy to oxidize

Method used

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  • Flexible composite transparent conductive film and preparation method thereof
  • Flexible composite transparent conductive film and preparation method thereof
  • Flexible composite transparent conductive film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The flexible transparent conductive film described in this application is mainly prepared by spin coating on polyethylene terephthalate (PET). Specific steps are as follows:

[0029] (1) Take 20 mg / ml silver nanowire original solution, dilute it to 1 mg / ml and place it in a reagent bottle.

[0030] (2) Take 2.5±0.5% nanocellulose solution, dilute it to 0.5%, and place it in a reagent bottle.

[0031] (3) Prepare a 1 mg / ml graphene oxide solution and sonicate for 10 hours to ensure uniform dispersion.

[0032] (4) Take an appropriate amount of solutions in (1) and (2) and mix them evenly, the mixing ratio is 1:1, put them in a reagent bottle and wait for use.

[0033] (5) Cut 1.5×1.5 cm 2 square PET substrate and marked.

[0034] (6) Place the PET substrate in (5) on a dust-free cloth, clean the surface with a cleaning solution, then put it into a beaker containing a Teflon cleaning rack, pour acetone and isopropanol into it, and ultrasonically Under the condition o...

Embodiment 2

[0037] The flexible transparent conductive film described in this application is mainly prepared by spin coating on polyethylene terephthalate (PET). Specific steps are as follows:

[0038] (1) Take the original solution of 20 mg / ml silver nanowires, dilute to 5 mg / ml and put it in the reagent bottle.

[0039] (2) Take 2.5±0.5% nanocellulose solution, dilute it to 2.5%, and place it in a reagent bottle.

[0040] (3) Prepare a 5 mg / ml graphene oxide solution and sonicate for 10 hours to ensure uniform dispersion.

[0041] (4) Take an appropriate amount of solutions in (1) and (2) and mix them evenly, the mixing ratio is 1:2, put them in a reagent bottle and wait for use.

[0042] (5) Cut 1.5×1.5 cm 2 square PET substrate and marked.

[0043](6) Place the PET substrate in (5) on a dust-free cloth, clean the surface with a cleaning solution, then put it into a beaker containing a Teflon cleaning rack, pour acetone and isopropanol into it, and ultrasonically Under the conditi...

Embodiment 3

[0046] The flexible transparent conductive film described in this application is mainly prepared by spin coating on polyethylene terephthalate (PET). Specific steps are as follows:

[0047] (1) Take the original solution of 20 mg / ml silver nanowires, dilute to 2 mg / ml and put it in the reagent bottle.

[0048] (2) Take 2.5±0.5% nanocellulose solution, dilute it to 1%, and place it in a reagent bottle.

[0049] (3) Prepare a 3 mg / ml graphene oxide solution and sonicate for 10 hours to ensure uniform dispersion.

[0050] (4) Take an appropriate amount of solutions in (1) and (2) and mix them evenly, the mixing ratio is 1:3, put them in a reagent bottle and wait for use.

[0051] (5) Cut 1.5×1.5 cm 2 square PET substrate and marked.

[0052] (6) Place the PET substrate in (5) on a dust-free cloth, clean the surface with a cleaning solution, then put it into a beaker containing a Teflon cleaning rack, pour acetone and isopropanol into it, and ultrasonically Under the conditio...

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Abstract

The invention discloses a flexible composite transparent conductive film, which comprises a polyethylene glycol terephthalate substrate layer, a blending layer of nanocellulose and silver nanowires and a graphene oxide layer in sequential contact, and is characterized in that the nanocellulose has a three-dimensional network porous structure and is used as a support body material to bear the silver nanowires; the silver nanowires are spread on the surface of the nanocellulose and are uniformly dispersed, so that the agglomeration phenomenon of the silver nanowires is reduced, the film-formingproperty of the silver nanowires is good, and the surface is flat and uniform.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a flexible composite transparent conductive film and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of flexible optoelectronic devices, flexible transparent conductive films have been widely used in touch screens, sensors, solar cells, transparent heaters and other fields. At present, indium tin oxide (ITO) has been widely used in the preparation of electrode materials for optoelectronic devices. As an oxide conductor, it has many advantages, such as high stability in the atmosphere and high light transmittance. However, with the development of flexible electronic devices, traditional ITO transparent conductive films have also exposed more and more shortcomings, such as brittleness, shortage of indium resources, and high cost. Therefore, it is imminent to find materials that can replace ITO. Among them, graphene, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B13/00
CPCH01B5/14H01B13/0026
Inventor 石胜伟张欢贺琦祺徐金新杨克聪覃鑫李文婷王飞
Owner WUHAN INSTITUTE OF TECHNOLOGY
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