Silver nanowire and preparation method and application thereof

A technology of silver nanowires and silver salts, which is applied in the field of materials, can solve the problems of poor bending resistance, small length and diameter of silver nanowires, and affect the performance of transparent electrodes, etc., and achieve excellent bending resistance and length-to-diameter ratio Effect

Active Publication Date: 2020-01-24
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology

At present, the aspect ratio of some silver nanowires is too small, which affects the performance of transparent electrodes
Although some silver nanowires have a long aspect ratio, their bending resistance is poor, which still cannot meet the actual needs.

Method used

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  • Silver nanowire and preparation method and application thereof
  • Silver nanowire and preparation method and application thereof
  • Silver nanowire and preparation method and application thereof

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preparation example Construction

[0020] The method for preparing silver nanowires in one embodiment can prepare silver nanowires with longer aspect ratio and better bending resistance, which can be used to prepare electronic products such as displays and touch screens, especially flexible and bendable electronic products. product. The preparation method of the silver nanowire comprises the following steps S110-S130:

[0021] S110, dissolving the silver salt in the first solvent to obtain the first mixture, the silver salt is selected from at least one of silver trifluoromethanesulfonate, silver diethyldithiocarbamate and silver succinimide , the first solvent is water.

[0022] Generally, in the preparation method of silver nanowires, organic solvents are often used to dissolve silver salts. Organic solvents have a strong odor, strong irritation, toxicity, high VOC emissions, and pollute the environment. In this study, water is used as the first solvent, and water has good solubility to silver salts, and th...

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Abstract

The invention relates to a silver nanowire and a preparation method and application thereof. The preparation method of the silver nanowire comprises the following steps that silver salt is dissolved in a first solvent, a first mixture is obtained, the silver salt is selected from at least one of silver trifluoromethanesulfonate, silver diethyl dithiocarbamate and succinimide silver salt, and the first solvent is water; a seed crystal, a reducing agent and a dispersing agent are dissolved in a second solvent at the temperature of 48-72 DEG C, a second mixture is obtained, the seed crystal is selected from at least one of tri-silver citrate or silver tetrafluoroborate, and the second solvent is water; and the first mixture and the second mixture are mixed in a dropwise adding manner, the pHis adjusted to 8-8.5, solid-liquid separation is carried out, and the silver nanowire is obtained. By means of the preparation method, the silver nanowire with the good bending resistance and the longlength-diameter ratio can be obtained.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a silver nanowire and its preparation method and application. Background technique [0002] Nanowires are nanoscale materials that can be used to create ultra-small circuits. Among them, silver nanowires have excellent electrical conductivity and excellent light transmittance, and are a conductive material that can impart conductivity to transparent substrates. Therefore, they are often used to replace traditional ITO materials to make transparent electrodes, and are used in In electronic products such as light-emitting diodes and touch screens. At present, the aspect ratio of some silver nanowires is too small, which affects the performance of transparent electrodes. Although some silver nanowires have a long aspect ratio, their bending resistance is poor, which still cannot meet the actual needs. Contents of the invention [0003] Based on this, it is necessary to provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F1/00B82Y40/00B82Y30/00
CPCB22F9/24B82Y40/00B82Y30/00B22F1/0547
Inventor 郑俊威
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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