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A kind of preparation method of silver nanowire film with high transmittance and low resistance

A silver nanowire, high transmittance technology, applied in the equipment for manufacturing conductive/semiconducting layers, cable/conductor manufacturing, circuits, etc., can solve the complex and large-scale production of silver nanowire transparent conductive film preparation process Inconvenience, unsatisfactory transmittance, etc., to achieve the effect of improving visible light transmittance, realizing mass production, and easy mass production

Active Publication Date: 2018-01-02
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The preparation process of the existing silver nanowire transparent conductive film is complicated, and conditions such as inert gas protection, shading, high pressure, and stirring are required from the outside world, which will inevitably increase the complexity of the process and bring inconvenience to large-scale production.
At present, the biggest problem facing the silver nanowire transparent conductive film is still too much square resistance and unsatisfactory transmittance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The invention provides a method for preparing a silver nanowire film with high transmittance and low resistance, comprising the following steps:

[0022] a) Dissolve 0.8g of silver nitrate in 40mL of ethylene glycol, and sonicate for 30min in an ultrasonic wave with an ultrasonic power of 100W to obtain a concentration of 0.1mol L -1 Alcohol solution of silver nitrate;

[0023] b) Weigh 0.68g of PVP-K90 and dissolve it in 50mL of ethylene glycol, place it in a three-necked flask, stir it to fully dissolve, and obtain a concentration of 0.05mol L -1 Alcohol solution of PVP- K90;

[0024] c) Mix the silver nitrate alcoholic solution with the PVP-K90 alcoholic solution in a ratio of 4:5 by volume, stir for 5min, add 5×10 -6 molFeCl 3 ·6H 2 0, then warming up to 80°C, and standing for 2h to obtain silver nanowire mother liquor;

[0025] d) The silver nanowire mother liquor prepared in step c was washed 6 times with absolute ethanol, centrifuged at a centrifugal speed o...

Embodiment 2

[0028] The invention provides a method for preparing a silver nanowire film with high transmittance and low resistance, comprising the following steps:

[0029] a) Dissolve 1g of silver nitrate in 40mL of ethylene glycol, and sonicate for 30min in an ultrasonic wave with an ultrasonic power of 100W to obtain a concentration of 0.25mol L -1 Alcohol solution of silver nitrate;

[0030] b) Weigh 0.8g of PVP-K90 and dissolve it in 50mL of ethylene glycol, place it in a three-necked flask, stir it to fully dissolve, and obtain a concentration of 0.1mol L -1 Alcohol solution of PVP- K90;

[0031] c) Mix the silver nitrate alcoholic solution with the PVP-K90 alcoholic solution in a ratio of 4:5 by volume, stir for 5min, add 7.5×10 -6 molFeCl 3 ·6H 2 0, then warming up to 110°C, and standing for 4h to obtain silver nanowire mother liquor;

[0032] d) The silver nanowire mother liquor prepared in step c was washed 6 times with deionized water, centrifuged at a centrifuge speed of ...

Embodiment 3

[0035] The invention provides a method for preparing a silver nanowire film with high transmittance and low resistance, comprising the following steps:

[0036] a) Dissolve 1g of silver nitrate in 40mL of ethylene glycol, and sonicate for 30min in an ultrasonic wave with an ultrasonic power of 100W to obtain a concentration of 0.25mol L -1 Alcohol solution of silver nitrate;

[0037] b) Weigh 0.98g of PVP-K90 and dissolve it in 50mL of ethylene glycol, place it in a three-necked flask, stir it to fully dissolve, and obtain a concentration of 0.15mol L -1 Alcohol solution of PVP- K90;

[0038] c) Mix the silver nitrate alcoholic solution with the PVP-K90 alcoholic solution in a ratio of 4:5 by volume, stir for 5min, and add 2×10 -5 molFeCl 3 ·6H 2 0, then warming up to 110°C, and standing for 12h to obtain silver nanowire mother liquor;

[0039] d) The silver nanowire mother liquor prepared in step c was washed 6 times with deionized water, centrifuged at a centrifugal spe...

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Abstract

The invention discloses a method for preparing a silver nanowire film with high transmittance and low resistance. 1~0.5mol L-1 silver nitrate alcohol solution; b) dissolving the surfactant in the polyol to obtain a substance concentration of 0.05mol L-1~0.5mol L-1 surfactant alcohol solution; c) mix the silver nitrate alcohol solution and the surfactant alcohol solution in a volume ratio of 4:5, add the metal ion control agent, then heat up and let it stand to obtain the silver nanowire mother liquor; d) prepare the silver nanowire mother liquor in step c The silver nanowire mother liquor was washed, centrifuged, and dispersed with a dispersant after removing impurities to obtain a silver nanowire dispersion with a mass volume ratio of 0.2 mg·mL‑1~20mol·L‑1, and the length of the silver nanowire was 80um~200um , with a diameter of 40nm to 100nm; e) Put the cleaned substrate into a spin coater, drop the silver nanowire dispersion liquid prepared in step d on the surface of the substrate, and after the coating is completed, dry it naturally to obtain silver nanowire film.

Description

technical field [0001] The invention relates to the technical field of manufacturing transparent conductive films, in particular to a method for preparing silver nanowire films with high transmittance and low resistance. Background technique [0002] As an important photoelectric functional film, transparent conductive film has a wide range of applications in electronic information industries such as solar cells, electronic paper, flat liquid crystal displays, field emission displays, and touch screens. With the development of science and technology, electronic devices are developing in the direction of flexibility and portability, and the market demand for transparent conductive films with high transmittance, high conductivity and high flexibility is increasing. In recent years, transparent conductive films based on silver nanowires have attracted extensive attention for their excellent optical, electrical, and flexible properties. [0003] At this stage, there are not man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00B22F1/00B22F9/24
CPCH01B13/0026B22F9/24B22F1/054
Inventor 彭寿操芳芳金良茂王芸汤永康王巍巍
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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