Silver nanowire transparent conductive thin film and preparation method thereof

A technology of transparent conductive films and silver nanowires, which is applied in the direction of equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, conductive layers on insulating carriers, etc., can solve the problem that the electrical connection of silver nanowires is not effective enough and affects The practical application of silver nanowire transparent conductive film, the uneven conductivity of the surface of silver nanowire film, etc., to achieve excellent optical transmission performance, increase conductive uniformity, and enhance the effect of effective connection

Inactive Publication Date: 2016-11-09
SHAANXI COAL & CHEM TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main problems in the preparation of silver nanowire transparent conductive films are: the surface conductivity of silver nanowire films is not uniform, and the electrical connection between silver nanowires is not effective enough.
This problem affects the practical application of silver nanowire transparent conductive film

Method used

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  • Silver nanowire transparent conductive thin film and preparation method thereof
  • Silver nanowire transparent conductive thin film and preparation method thereof
  • Silver nanowire transparent conductive thin film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Prepare a silver nanowire dispersion, the solvent of the silver nanowire dispersion is absolute ethanol, and the concentration of the silver nanowire in the solvent is 0.2-2mg / ml.

[0035] (2) Preparation of TiO x Sol: Magnetically stir anhydrous ethanol and diethanolamine in a 40°C water bath for 10 minutes, then add butyl titanate, magnetically stir in a 40°C water bath for 10 minutes, add deionized water, and magnetically stir in a 40°C water bath for 30 minutes to obtain light yellow liquid. The solution was filtered with medium-speed filter paper and then aged for 24h. Wherein the molar ratio of absolute ethanol:diethanolamine:butyl titanate:deionized water is (50-100):(2-5):(5-10):1.

[0036] (3) Cleaning the glass substrate: first, ultrasonically clean the substrate with deionized water for 10-20min, then ultrasonically clean with acetone for 10-20min, then ultrasonically treat with absolute ethanol for 10-20min, and finally ultrasonically treat with deioni...

Embodiment 2

[0044] (1) Prepare a silver nanowire dispersion, the solvent of the silver nanowire dispersion is absolute ethanol, and the concentration of the silver nanowire in the solvent is 0.2-2mg / ml.

[0045] (2) Preparation of TiO x Sol: Magnetically stir anhydrous ethanol and diethanolamine in a 40°C water bath for 15 minutes, then add butyl titanate, magnetically stir in a 60°C water bath for 5 minutes, add deionized water, and magnetically stir in a 30°C water bath for 60 minutes to obtain light yellow liquid. Filter the solution with medium speed filter paper, then age for 30h. Wherein the molar ratio of absolute ethanol:diethanolamine:butyl titanate:deionized water is (50-100):(2-5):(5-10):1.

[0046] (3) Cleaning the glass substrate: first, ultrasonically clean the substrate with deionized water for 10-20min, then ultrasonically clean with acetone for 10-20min, then ultrasonically treat with absolute ethanol for 10-20min, and finally ultrasonically treat with deionized water for...

Embodiment 3

[0054] (1) Prepare a silver nanowire dispersion, the solvent of the silver nanowire dispersion is absolute ethanol, and the concentration of the silver nanowire in the solvent is 0.2-2mg / ml.

[0055] (2) Preparation of TiO x Sol: Magnetically stir anhydrous ethanol and diethanolamine in a 40°C water bath for 8 minutes, then add butyl titanate, magnetically stir in a 30°C water bath for 20 minutes, add deionized water, and magnetically stir in a 60°C water bath for 40 minutes to obtain light yellow liquid. The solution was filtered with medium-speed filter paper and then aged for 36h. Wherein the molar ratio of absolute ethanol:diethanolamine:butyl titanate:deionized water is (50-100):(2-5):(5-10):1.

[0056] (3) Cleaning the glass substrate: first, ultrasonically clean the substrate with deionized water for 10-20min, then ultrasonically clean with acetone for 10-20min, then ultrasonically treat with absolute ethanol for 10-20min, and finally ultrasonically treat with deioniz...

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Abstract

The present invention provides a silver nanowire transparent conductive thin film and a preparation method thereof. The silver nanowire transparent conductive thin film comprises a substrate as well as a silver nanowire coating and a titanium oxide coating sequentially covering the substrate; and the titanium oxide coating and silver in the silver nanowire layer form a structure similar to Ag-Ti alloy valence bond. According to the silver nanowire transparent conductive thin film and the preparation method thereof, the titanium oxide layer (TiOx) is introduced, and the titanium oxide layer and the silver in the silver nanowire layer form the structure similar to the Ag-Ti alloy valence bond, and therefore, on the one hand, electrical effective connections between silver nanowires can be enhanced, and the functions of a binder are realized, and the uniformity of the electric conduction of the transparent conductive thin film can be increased, and on the other hand, the optical transmittance of the TiOx layer is excellent, the transmittance of the thin film will not be decreased significantly; and the TiOx layer can protect the silver nanowire transparent conductive film thin from being oxidized, so that the stability of the thin film can be improved.

Description

【Technical field】 [0001] The invention relates to a transparent conductive film, in particular to a preparation method of the transparent conductive film, which belongs to the field of photovoltaic technology. 【Background technique】 [0002] As the core components of electronic products such as solar cells, touch screens, and flat panel displays, transparent conductive films have a very large market space. Due to the shortage of indium element, the price of indium tin oxide (ITO), which is widely used at present, continues to rise. Therefore, it is necessary to develop a new type of transparent conductive film to replace ITO. [0003] Silver nanowires are considered to be a good replacement for ITO due to their excellent electrical conductivity and flexibility, and the low-cost solution coating preparation process. However, the main problems in the preparation of the silver nanowire transparent conductive film are: the surface conductivity of the silver nanowire film is not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02H01B5/14H01B13/00
CPCH01B5/14H01B1/02H01B13/0026
Inventor 雷国伟赵炎
Owner SHAANXI COAL & CHEM TECH INST
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