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Chitosan flexible transparent conductive film based on silver nanowire conductive network

A transparent conductive film, silver nanowire technology, applied in conductive materials dispersed in non-conductive inorganic materials, conductive layers on insulating carriers, circuits, etc., can solve the problem of poor thermal stability and chemical stability, limited application, reduced Device performance and other issues, to achieve the effect of excellent light transmission performance

Active Publication Date: 2018-01-26
上海洋阅新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, silver nanowire films face an important problem in practical applications, that is, the activity of metals makes the thermal and chemical stability of silver nanowire films poor, which easily leads to unstable electrical properties of the film, thereby reducing device performance (Lan Qiuming , Li Jiabao, He Xin, Chen Ning, Zhang Mei, Zeng Qingguang. Study on Photoelectric Properties and Stability of Graphene / Silver Nanowire Composite Transparent Conductive Thin Film[J]. Journal of Synthetic Crystals, 2015,44(12):3788-3792+3798 )
In addition, the pure AgNWs film is easily torn off from the surface of the substrate, which greatly limits its application in practical production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Prepare the silver nanowires into a 1g / L aqueous solution, and then add 1g / L of an amino-terminated hyperbranched polymer or an aqueous solution of a hydroxyl-terminated hyperbranched polymer, the amino-terminated hyperbranched polymer or the hydroxyl-terminated hyperbranched polymer The volume ratio of the polymer aqueous solution to the silver nanowire aqueous solution is 1:1. After stirring and reacting at a constant speed at room temperature for 24 hours, it is repeatedly washed with deionized water and ethanol, and dried to obtain amino-terminated hyperbranched polymer-modified silver nanowires or hydroxyl-terminated polymers. Hyperbranched polymer modified silver nanowires; (2) Weigh a certain amount of chitosan and add it to 0.5mol / L acetic acid solution and stir for 2 hours to completely dissolve it to obtain a chitosan solution with a mass fraction of 1%, Then the chitosan solution was slowly poured into the petri dish, air-dried and then gently peeled off t...

Embodiment 2

[0018](1) Prepare the silver nanowires into a 5g / L aqueous solution, and then add 5g / L of an amino-terminated hyperbranched polymer or an aqueous solution of a hydroxyl-terminated hyperbranched polymer, the amino-terminated hyperbranched polymer or the hydroxyl-terminated hyperbranched polymer The volume ratio of the polymer aqueous solution to the silver nanowire aqueous solution is 1:5. After stirring and reacting at a constant speed at room temperature for 24 hours, it is repeatedly washed with deionized water and ethanol, and dried to obtain the amino-terminated hyperbranched polymer-modified silver nanowire or hydroxyl-terminated polymer. Hyperbranched polymer modified silver nanowires; (2) Weigh a certain amount of chitosan and add it to 0.5mol / L acetic acid solution and stir for 2 hours to completely dissolve it to obtain a chitosan solution with a mass fraction of 2%, Then the chitosan solution was slowly poured into the petri dish, air-dried and then gently peeled off ...

Embodiment 3

[0020] (1) Prepare silver nanowires into a 10g / L aqueous solution, and then add 10g / L of amino-terminated hyperbranched polymer or hydroxyl-terminated hyperbranched polymer aqueous solution, the amino-terminated hyperbranched polymer or the hydroxyl-terminated hyperbranched polymer The volume ratio of the polymer aqueous solution to the silver nanowire aqueous solution is 1:10. After stirring and reacting at a constant speed at room temperature for 24 hours, it is repeatedly washed with deionized water and ethanol, and dried to obtain the amino-terminated hyperbranched polymer modified silver nanowire or hydroxyl-terminated polymer. Hyperbranched polymer modified silver nanowires; (2) Weigh a certain amount of chitosan and add it to 0.5mol / L acetic acid solution and stir for 2 hours to completely dissolve it to obtain a chitosan solution with a mass fraction of 5%, Then the chitosan solution was slowly poured into the petri dish, air-dried and then gently peeled off to obtain t...

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Abstract

The invention discloses a chitosan flexible transparent conductive film based on a silver nanowire conductive network. Through electrostatic layer-by-layer self-assembly of silver nanowires on the surface of a chitosan film, the chitosan flexible transparent conductive film, which has excellent light transmittance performance, conductivity, adherence performance and biodegradability, is obtained.The chitosan flexible transparent conductive film has a huge application value in fields of optoelectronic devices and wearable devices and the like.

Description

technical field [0001] The invention relates to a chitosan flexible transparent conductive film based on a silver nanowire conductive network, which belongs to the field of photoelectric materials. Background technique [0002] Transparent conductive film refers to a film material with high light transmittance and excellent conductivity in the visible light range. It is an important part of many optoelectronic devices including solar cells, light-emitting diodes, and liquid crystal displays. The most widely used transparent conductive film is indium tin oxide (ITO). However, due to the shortcomings of ITO, such as fragility, fragility, lack of flexibility, and high cost, it can no longer meet the needs of flexible optoelectronic devices. Graphene, carbon nanotubes, metal nanowires, and conductive polymers have all been used to replace ITO to prepare flexible transparent electrodes. Among them, the AgNWs prepared in the solution can not only realize large-scale roll-to-roll...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B5/14H01B1/22
Inventor 赵兵
Owner 上海洋阅新材料科技有限公司
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