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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: 2021-09-03
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

[0038] On the one hand, the embodiment of the present invention provides a kind of preparation method of silver nanowire film, such as figure 1 shown, including the following steps:

[0039] S01: Provide silver nanowire ink;

[0040] S02: coating the silver nanowire ink on the surface of the substrate, and then curing to obtain a silver nanowire film;

[0041] Wherein, before the step of the curing treatment and / or during the step of the curing treatment, it also includes using multiple pairs of staggered air nozzles to perform wind blowing treatment on the surface of the substrate coated with the silver nanowire ink;

[0042] In the wind blowing process, the air outlets of each pair of staggered tuyere nozzles are arranged in a staggered manner, and the air outlet direction of each pair of staggered air nozzles points to the substrate and forms the same angle with the surface of the substrate.

[0043] In the preparation method of the silver nanowire thin film provided by t...

Embodiment 1

[0063] A method for preparing a silver nanowire film, comprising the steps of:

[0064] S11: Provide silver nanowire ink;

[0065] S12: 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 5 pairs of staggered air nozzles, so The air outlet direction of the staggered air outlet of the staggered air nozzle points to the substrate and forms an angle of 10° with the substrate, the width of the air outlet of the staggered air nozzle is 3cm, and the air outlet of the staggered air nozzle The vertical distance of the substrate is 10cm, and the distance between the same-side air outlets of the air outlets of the staggered air nozzles is 50cm);

[0066] S13: Pass nitrogen gas into the staggered tuyeres, which contains 2 mmol / L hydrogen sulfide. The surface of the substrate coated with the silver nanowire ink is blown by wind for...

Embodiment 2

[0068]A method for preparing a silver nanowire film, comprising the steps of:

[0069] S11: Provide silver nanowire ink;

[0070] S12: 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 5 pairs of staggered air nozzles, so The air outlet direction of the staggered air outlet of the staggered air nozzle points to the substrate and forms an angle of 30° with the substrate. The width of the air outlet of the staggered air nozzle is 10 cm. The vertical distance of the substrate is 50cm, and the distance between the same-side air outlets of the air outlets of the staggered air nozzles is 30cm);

[0071] S13: Pass air into the staggered tuyeres, which contains 0.5 mmol / L hydrogen sulfide. The surface of the substrate coated with the silver nanowire ink was blown for 5 minutes, the wind speed was 2.1m / s, and the air volume wa...

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Abstract

The invention relates to a method for preparing a silver nanowire film, comprising the following steps: providing silver nanowire ink; coating the silver nanowire ink on the surface of a substrate, and then curing to obtain a silver nanowire film; wherein, in the Before the step of curing treatment and / or in the step of said curing treatment, it also includes using multiple pairs of staggered air nozzles to carry out wind blowing treatment on the substrate surface coated with said silver nanowire ink; in said wind blowing treatment, each pair The air outlets of the staggered air nozzles are arranged in a staggered manner, and the air outlet direction of each pair of air nozzles points to the substrate and forms the same angle with the surface of the substrate. The preparation method adjusts or changes the arrangement direction of the silver nanowires in a physical way of the 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 陈志雄李奇琳王新月陈建良罗晓雯甘堃陈超云
Owner 深圳市善柔科技有限公司
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