Preparation process of a controllable color silver nanowire conductive film

A technology of silver nanowires and conductive films, which is applied in cable/conductor manufacturing, conductive layers on insulating carriers, circuits, etc., can solve the problems of undiscovered suitable modification materials or dyes, and achieve excellent light fastness and humidity Dealing with fastness, increasing application scenarios and scope, and controlling the effect of dyeing depth

Active Publication Date: 2020-04-14
合肥微晶材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, suitable modification materials or dyes suitable for changing the absorption wavelength and position of the conductive film of silver nanowires to adjust its color have not yet been found, and further exploration is urgently needed.

Method used

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  • Preparation process of a controllable color silver nanowire conductive film
  • Preparation process of a controllable color silver nanowire conductive film
  • Preparation process of a controllable color silver nanowire conductive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation process of the color-controllable silver nanowire conductive film of this embodiment is to first coat the silver nanowire conductive ink containing epoxy ethylene type surfactant on the PET film as a transparent substrate and dry it (temperature 120 ℃, Time 30min), and then apply B-2GLN reactive blue solution with a concentration of 0.1mg / mL on the surface and dry (temperature 120°C, time 30min) to obtain.

[0032] Wherein, the composition of each raw material of silver nanowire conductive ink by mass fraction is:

[0033]

Embodiment 2～7

[0035] Examples 2 to 6 were prepared by the same method as in Example 1, except that the concentration of the azo metal complex dye solution was changed, or replaced with chloroauric acid solution. As a comparison, no alkylphenol polyoxyethylene ether was added to the silver nanowire conductive ink used in Example 7, and no azo metal complex dye solution or chloroauric acid solution was coated on the surface of the conductive layer. See Table 1 for details.

[0036] Table 1

[0037] Example surface modifier Concentration (mg / mL) 1 B-2GLN reactive blue 0.1 2 B-2GLN reactive blue 0.5 3 B-2GLN reactive blue 1 4 Chlorauric acid 0.1 5 Chlorauric acid 0.5 6 Chlorauric acid 1 7 none none

[0038] Performance Testing:

[0039] The transmittance and haze of the silver nanowire conductive film obtained in each embodiment were measured with a photoelectric haze tester of the Shenguang brand WGW. Use a four-probe squar...

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Abstract

The present invention discloses a preparation process of a color-controllable silver nanowire conductive thin film. The preparation process comprises the steps of: coating silver nanowire conductive ink comprising oxirene surfactant on a transparent substrate and performing drying; and coating azo-class metal complex dye solution or chloroauric acid solution at the surface of the transparent substrate, and performing drying to obtain the a color-controllable silver nanowire conductive thin film. The color-controllable silver nanowire conductive thin film has controllable dyeing depth, good light fastness and good wet-processing fastness and solves the problem that the silver nanowire conductive thin film is a bit yellow, and conductive films with various colors can be prepared without anyinfluence on original performances so as to improve the application scenes and ranges.

Description

technical field [0001] The invention relates to a silver nanowire conductive film. Background technique [0002] At present, in the field of transparent silver nanowire conductive films, most researchers focus on the haze, transmittance, conductivity, high-temperature and high-humidity weather resistance and UV aging resistance of transparent conductive films, but the yellowish color characteristics Pay less attention. The study found that the reason for the yellowing of the transparent silver nanowire film may be that when the radial length of the silver nanowire decreases from 100nm to 10-20nm, the band gap of the energy spectrum of the silver nanowire widens, causing the absorption wavelength to deviate from about 550nm. Moving to 380nm produces a "blue shift" of the absorbed wave, thereby showing the phenomenon of yellowing through the light compensation effect of the substance. And with the increase of silver nanowire content in the film, the chromaticity value of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/23H01L33/18H01B13/00H01B5/14
CPCH01B5/14H01B13/00
Inventor 张梓晗吕鹏陶豹张运奇聂彪
Owner 合肥微晶材料科技有限公司
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