A kind of preparation method of flexible transparent conductive film

A technology of transparent conductive film and conductive film, which is applied to equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, conductive layers on insulating carriers, etc., and can solve problems such as high cost, complicated operation, and poor effect , to achieve the effect of improving photoelectric/mechanical performance and accelerating development

Active Publication Date: 2021-04-27
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on some problems existing in some existing patterning process methods, such as high cost, complicated operation or relatively poor effect, etc., which cannot meet the requirements well, this application provides a method for preparing a flexible transparent conductive film

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  • A kind of preparation method of flexible transparent conductive film
  • A kind of preparation method of flexible transparent conductive film
  • A kind of preparation method of flexible transparent conductive film

Examples

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preparation example Construction

[0037] see Figure 1~4, the application provides a method for preparing a flexible transparent conductive film, the method comprising the steps of:

[0038] (1) sequentially prepare a nanowire conductive film layer and a water-soluble polymer film layer on a flexible substrate;

[0039] (2) Deposit micro-nano-scale water droplets on the surface of the polymer film by means of electro-atomization of water-based solvents, use the water solubility of the polymer to etch a grid pattern structure, and etch until the conductive nanowire layer is completely exposed to form a grid chemical polymer films;

[0040] (3) using the meshed polymer film as a mask layer to perform oxygen plasma treatment on the nanowire conductive film layer, and remove the unmasked nanowire conductive film;

[0041] (4) Use deionized water to remove the residual polymer film, and dry to obtain a flexible transparent conductive film.

[0042] Further, in the step (3), the nanowire conductive film layer is ...

Embodiment 1

[0055] The preparation method of the meshed silver nanowire flexible transparent conductive film of this embodiment specifically includes the following steps:

[0056] (1) Select and clean the flexible PET flexible substrate 1, wherein the material of the flexible substrate 1 in this embodiment is polyethylene terephthalate (PET), and ethanol and deionized ultrasonic cleaning are used in sequence during cleaning. 10min, then dry with an infrared lamp;

[0057] (2) The silver nanowire conductive thin film layer 2 is prepared on the flexible substrate 1 by doctor blade coating. During the scraping process, the distance between the scraper and the flexible substrate 1 is 800 microns, the scraping speed is 15 mm / min, and the nanowire solution is dispersed in deionized water with a concentration of 10 mg / ml. The wires are about 30 nanometers in diameter and about 30 micrometers in length. After scraping, place the sample on a heating table at 100°C, heat and sinter the nanowires ...

Embodiment 2

[0066] The preparation method of the meshed nanowire flexible transparent conductive film of this embodiment specifically includes the following steps:

[0067] (1) Select and clean the flexible polycarbonate flexible substrate 1, wherein the material of the flexible substrate 1 in this embodiment is polycarbonate (PC), and when cleaning, use acetone, ethanol and deionized ultrasonic cleaning for 10 minutes in sequence, Then dry it with an infrared lamp;

[0068] (2) The carbon nanotube flexible transparent conductive film layer 2 is prepared by a wet method. First, select single-walled carbon nanotubes with a purity of 95% and the anionic surfactant sodium dodecylbenzenesulfonate (SDBS) to prepare a carbon nanotube dispersion at a ratio of 1:10, and then place it in a water bath at 60 °C Heat for 10 minutes, then weigh the non-ionic surfactant Triton X.100 (TX100) with a mass ratio of 1:2 to the surfactant SDBS, slowly add it to the carbon nanotube dispersion, and continue s...

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Abstract

There are some problems in some existing patterning process methods, which cannot meet the requirements very well. The application provides a method for preparing a flexible transparent conductive film, comprising: (1) sequentially preparing a nanowire conductive film layer and a water-soluble polymer film layer on a flexible substrate; Deposit micro-nano-scale water droplets on the surface of the polymer film, use the water solubility of the polymer to etch the grid pattern structure, and etch until the conductive nanowire layer is completely exposed to form a grid polymer film; (3) use the grid The polymer film is used as a mask layer to carry out oxygen plasma treatment on the nanowire conductive film layer, and remove the unmasked nanowire conductive film; (4) use deionized water to remove the residual polymer film, and dry to obtain a flexible transparent conductive film. film. The electric atomization process is adopted to prepare the polymer layer as a masking layer, and it plays the role of mask protection in the preparation process of the nanowire conductive film.

Description

technical field [0001] The application belongs to the field of flexible electronic devices, and in particular relates to a method for preparing a flexible transparent conductive film. Background technique [0002] With the rapid development of the optoelectronic industry, the application fields of transparent conductive films continue to expand, and further higher requirements are put forward for their physical and chemical properties. At the same time, more and more functions are integrated in optoelectronic devices. Among them, the emergence of flexible devices such as wearable devices, flexible displays, and electronic skins poses new challenges to electrodes, and traditional electrode ITO is becoming more and more difficult to meet the requirements. First of all, the ceramic brittleness of ITO itself limits its application in flexible devices; secondly, ITO thin films require high-temperature processing, and common flexible substrates are difficult to meet the requiremen...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01B13/00H01B5/14B82Y40/00
CPCB82Y40/00H01B5/14H01B13/0026
Inventor罗钰宁田泽裴跃琛王莉卢秉恒
OwnerXI AN JIAOTONG UNIV