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Preparation method of silver nanowire film

A technology of silver nanowires and thin films is applied in the field of preparation of silver nanowire thin films, and can solve the problems of poor uniformity of anisotropic impedance of silver nanowire thin films and the like

Active Publication Date: 2021-12-07
深圳市善柔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a silver nanowire film, which aims to solve the technical problem of poor uniformity of anisotropic impedance of the existing silver nanowire film

Method used

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  • Preparation method of silver nanowire film
  • Preparation method of silver nanowire film
  • Preparation method of silver nanowire film

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preparation example Construction

[0034] The embodiment of the present invention provides a kind of preparation method of silver nanowire thin film, such as figure 1 shown, including the following steps:

[0035] S01: Provide silver nanowire ink;

[0036] S02: coating the silver nanowire ink on the surface of the substrate, and then curing to obtain a silver nanowire film;

[0037] Wherein, before the step of curing treatment and / or during the step of curing treatment, wind blowing treatment is also included;

[0038] The wind in the wind blowing treatment is blown vertically to the surface of the substrate after passing through the porous medium layer.

[0039] In the preparation method of the silver nanowire film provided in the embodiment of the present invention, after the silver nanowire ink is coated on the surface of the substrate, the wind passing through the porous medium layer is blown vertically to the surface of the substrate coated with the silver nanowire ink. Because the wind coming out of th...

Embodiment 1

[0053] S11: Provide silver nanowire ink;

[0054] S12: Coating the silver nanowire ink on the surface of the substrate (PET film), and transporting the substrate coated with the silver nanowire ink to a tunnel furnace (a tuyere is installed at a height of 0.1 m at the front end of the tunnel furnace, The air outlet of the air nozzle is provided with a porous medium layer, and the porous medium layer is parallel to the substrate);

[0055] S13: Pass nitrogen gas into the tuyeres, which contains 1mmol / L hydrogen sulfide. The wind blows vertically to the surface of the substrate coated with the silver nanowire ink after passing through the porous medium layer, the wind speed is 1.8m / s, and the air volume is 1.8m 3 / s, the temperature is 130°C, the wind blows for 1min, and then solidifies to obtain a silver nanowire film.

Embodiment 2

[0057] S21: Provide silver nanowire ink;

[0058] S22: Coat the silver nanowire ink on the surface of the substrate (PET film), and transfer the substrate coated with the silver nanowire ink to a tunnel furnace (the front end of the tunnel furnace is equipped with an air nozzle at a height of 1 m, The air outlet of the nozzle is provided with a porous medium layer, and the porous medium layer is parallel to the substrate);

[0059] S23: Pass air with humidity 3 / s, the temperature is 150°C, the wind blows for 2 minutes, and then solidifies to obtain a silver nanowire film.

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Abstract

The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of a silver nanowire thin film. The preparation method of the silver nanowire film comprises the following steps: providing silver nanowire ink; coating the silver nanowire ink on the surface of the substrate, and then curing to obtain the silver nanowire film; wherein, in the step of curing Before and / or in the curing treatment step, wind blowing treatment is also included; the wind in the wind blowing treatment is blown vertically to the surface of the substrate after passing through the porous medium layer. The present invention adjusts or changes the arrangement direction of the silver nanowires through the physical method of the disordered wind, so that the silver nanowires are uniformly dispersed in all directions on the substrate without most of them being arranged along the coating direction, and finally improves the silver nanowires. Conductive properties of nanowire films.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of a silver nanowire thin film. Background technique [0002] Silver Nanowires (AgNWs) refer to one-dimensional silver metal materials whose length is in the micrometer scale and the diameter is in the nanometer scale, and its aspect ratio can reach more than 1000. Generally speaking, the longer the length and the smaller the diameter of the silver nanowire, the higher the light transmittance and the lower the resistance. [0003] The silver nanowire transparent conductive film is a kind of conductive film made of countless silver nanowires and suitable organic cross-linking bodies on a flexible substrate. Compared with the traditional indium tin oxide (ITO) transparent conductive film, the silver nanowire transparent conductive film has better light transmission, conductivity and bending performance, and lower production cost. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B5/14
CPCH01B5/14H01B13/0026
Inventor 陈志雄李奇琳彭哲伟陈建良罗晓雯王新月甘堃
Owner 深圳市善柔科技有限公司
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