Preparation methods of silver nanowires for conductive ink and silver nanowire electrode

A silver nanowire and conductive ink technology, applied in the field of printed electronics, can solve the problems of cumbersome preparation process of silver nanomaterials, inability to use large-scale production and application, harsh experimental conditions, etc., and achieve high yield, uniform size, and simple preparation method Effect

Inactive Publication Date: 2015-11-25
TCL CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing silver nanowires for conductive ink, which aims to solve the problems of cumbersome prepa

Method used

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  • Preparation methods of silver nanowires for conductive ink and silver nanowire electrode

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Example Embodiment

[0018] The embodiment of the present invention provides a method for preparing silver nanowires for conductive ink, including the following steps:

[0019] S01. The silver ion salt and the protective agent are dissolved in a reducing solvent to form a mixed solution, and an etchant is added to the mixed solution to prepare a precursor solution;

[0020] S02. The precursor solution is heated and stirred twice in sequence to prepare silver nanowires for conductive ink, wherein the method of the two heating and stirring treatments is:

[0021] The first heating and stirring treatment: heating and stirring at 135-145℃ for 110-130min;

[0022] The second heating and stirring treatment: heating and stirring at 155-165°C for 25-35 min.

[0023] Specifically, in the above step S01, the mixed solution simultaneously contains a silver ion salt, a protective agent, and a reducing solvent.

[0024] Wherein, the silver ion salt is an organic or inorganic silver ion salt that can exist as a cation in ...

Example Embodiment

[0043] Example 1

[0044] A method for preparing a flexible electrode includes the following steps:

[0045] Q11. The preparation of silver nanowires for conductive inks includes the following steps:

[0046] S11. Put 100mgAgNO 3 Dissolve 100mg PVP in 30ml EG, add 2ul HCl (1M) to it after dissolving evenly to prepare a precursor solution;

[0047] S12. Pour the precursor solution into a flask and perform heating and stirring treatment twice in turn,

[0048] Among them, the first heating and stirring treatment is placed in a heat-collecting magnetic stirrer at 140°C for 2 hours, and the reaction equation of the first heating and stirring treatment is as follows:

[0049] 2HOCH 2 CH 2 OH→2CH 3 CHO+2H 2 O(S121)

[0050] 2Ag + +2CH 3 CHO→CH 3 CHO-OHCCH 3 +2Ag+2H + (S122)

[0051] 4HNO 3 +3Ag→3AgNO 3 +NO+2H 2 O(S123),

[0052] Among them, the reaction formula S123 reflects the reaction process of the polycrystalline crystal nucleus being etched.

[0053] For the second heating and stirring treat...

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Abstract

The invention is applicable to the field of printing electronics, and provides preparation methods of silver nanowires for conductive ink and a silver nanowire electrode. The silver nanowires for the conductive ink are prepared by the steps: preparing a precursor solution, and heating and stirring the precursor solution. The silver nanowire electrode can be prepared on a substrate only by dispersing the silver nanowires.

Description

technical field [0001] The invention belongs to the field of printed electronics, and in particular relates to a silver nanowire for conductive ink and a preparation method of a silver nanowire electrode. Background technique [0002] With the development of modern science and technology, printed electronics, as an emerging technology, has attracted widespread attention. As a branch, conductive ink and conductive paste have grown up slowly under the drive of this technology, and are applied to print various electronic devices, such as electronic tags (RFID), electronic circuits, chemical sensors, field effect tubes (FET) and thin film transistors (TFT), etc. Therefore, how to synthesize conductive metal nanomaterials to prepare conductive inks or conductive pastes has become a hot topic at present. Among all metals, silver has the best conductivity, and has many advantages such as high stability, easy reduction, not easy to be oxidized, and easy control of morphology. Ther...

Claims

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Application Information

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IPC IPC(8): C09D11/52C09D11/03B22F9/24
Inventor 杨帆付东
Owner TCL CORPORATION
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