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Method for manufacturing silver nanowire

A manufacturing method and technology of silver nanowires, which are applied in the field of metal functional materials and nanomaterials, can solve problems such as difficult mass production, wide distribution, and short wire lengths

Active Publication Date: 2013-07-10
NUOVO FILM SUZHOU CHINA INC
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, the existing polyol method mostly uses silver salt and protective agent to be injected into high-temperature polyol at the same time, and the obtained silver nanowires have thick wire diameter, short wire length, and wide distribution, and it is difficult to produce in batches, which cannot meet the actual needs.

Method used

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  • Method for manufacturing silver nanowire
  • Method for manufacturing silver nanowire

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Embodiment Construction

[0039] Please refer to figure 1 Shown, the present invention discloses a kind of manufacturing method of silver nanowire, it comprises the steps:

[0040] (a). A mixed solution is provided, containing at least one protective agent and an additive in the mixed solution, the additive being a halide and / or a compound capable of forming an intolerable salt with silver ions;

[0041] (b). Provide a silver precursor solution containing silver compounds, and add the silver precursor solution to the mixed solution at least twice;

[0042] (c). Separating and obtaining the silver nanowires.

[0043] Specifically, in step (a), the protective agent includes but is not limited to:

[0044] Various molecular weight polyvinylpyrrolidone (PVP, (C 6 h 9 NO)n), derivatives of polyvinylpyrrolidone, polyvinyl alcohol (PVA, (C 2 h 4 O)n), polyethylene oxide (PEO, (CH 2 CH 2 O) n), sodium lauryl sulfate (C 12 h 25 SO 4 Na), dodecylamine (C 12 h 27 N), octadecylamine (CH 3 (CH 2 ) 1...

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Abstract

The invention discloses a method for manfuacturing a silver nanowire, and the method comprises the following steps of: (a) providing a mixed solution, wherein the mixed solution at least contains a protective agent and an additive, and the additive is a halide or a compound capable of generating an insoluble salt with silver ions; (b) providing a silver precursor solution containing silver compounds, and adding the precursor solution in the mixed solution at least in twice; and (c) separating to obtain the silver nanowire. The method for manufacturing a silver nanowire has the beneficial effects that the protective agent is adopted at first, and then the silver precursor solution is added at least in twice rather than one time, the silver nanowire with high wire diameter ratio and suitability for production in a large scale can be obtained.

Description

technical field [0001] The invention relates to a method for manufacturing silver nanowires, belonging to the technical fields of metal functional materials and nanometer materials. Background technique [0002] Silver nanowires have optical transparency and high conductivity in the visible light range, and can be used to prepare transparent conductive films, used in touch screens, organic light-emitting diodes (OLEDs) and solar cells and other industries. At the same time, it can also be used as a conductive paste for printed circuits, etc. [0003] Silver nanowires have attracted more and more attention in recent years due to their high conductivity and wide potential applications. There are also various methods for preparing silver nanowires, such as hydrothermal method, polyol method or template method. However, considering the operability, cost and yield of the experiment, the polyol method has attracted more and more attention and been developed due to its simple ope...

Claims

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Application Information

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IPC IPC(8): B22F9/24
Inventor 潘克菲冀月田
Owner NUOVO FILM SUZHOU CHINA INC
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