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Method for making high aspect ratio silver nanowires

A high-aspect-ratio, silver nanowire technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve problems such as harmful turbidity and transmittance, insufficient conventional methods, and impact

Inactive Publication Date: 2018-07-20
DOW GLOBAL TECH LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for use in transparent conductive materials, it is desirable to provide a homogeneous suspension of high-aspect-ratio silver nanowires. The low-aspect-ratio particles provide negligible contributions to the desired conductive properties of transparent conductive materials, while contributing to the optical properties of transparent conductive materials, such as haze. degree and transmittance have a significantly detrimental effect on
[0004] Conventional methods aimed at separating low-aspect-ratio particles from the desired high-aspect-ratio silver nanowires have proven inadequate

Method used

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  • Method for making high aspect ratio silver nanowires
  • Method for making high aspect ratio silver nanowires
  • Method for making high aspect ratio silver nanowires

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example 1

[0065] There is 162cm use accommodation 2 An Advantec / MFS Model UHP 150 Stirred Cell Filter with a filtration area of ​​100000000000000000000000000001 and equipped with a magnetic cylindrical rod impeller filtered an aqueous feed solution containing silver solids including both high aspect ratio silver nanowires and low aspect ratio silver particles. The filter housing was placed on a Mettler model SB32001DR balance / magnetic stirring apparatus. The porous media used was a 5 μm hydrophilic polycarbonate track etched (PCTE) filter membrane supported in the bottom of the filter housing. Nitrogen pressure is used to power to create a pressure drop across the porous media. Nitrogen is supplied to the headspace in the filter housing. The pressure in the headspace was measured using a Cole-Parmer model 68075-16 pressure transducer. Nitrogen gas fed into the filter housing passes through a three-way ball valve mounted on top of the filter housing. The three-way valve effected the ...

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Abstract

The present invention provides a method of making high aspect ratio silver nanowires, wherein the silver solid produced comprises high aspect ratio silver nanowires and is depleted of low aspect ratio silver particles.

Description

technical field [0001] The present invention generally relates to the field of making silver nanowires. More specifically, the present invention relates to a method of making high aspect ratio silver nanowires, wherein a silver solid comprising high aspect ratio silver nanowires and depleted of low aspect ratio silver particles is provided. Background technique [0002] Highly transparent films exhibiting high electrical conductivity are valuable as electrodes or coatings in various electronic applications including, for example, touch screen displays and photovoltaic cells. Current techniques for these applications include the use of thin films containing tin-doped indium oxide (ITO) deposited via physical vapor deposition. The high capital cost of physical vapor deposition methods has led to the need to find alternative transparent conductive materials and coating routes. The use of silver nanowires dispersed like a percolation network emerges as a promising alternative ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/06B22F9/24B22F1/00B82Y30/00B82Y40/00
CPCB22F9/06B22F9/24B82Y30/00B82Y40/00B22F1/0547B22F2304/05B22F2301/255B22F1/07B03B5/66
Inventor R·M·科林斯P·T·麦格夫W·R·鲍尔
Owner DOW GLOBAL TECH LLC
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