Copper nanowire and preparation method thereof

A nano-copper wire, copper salt technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of poor uniformity of nano-metal wires, damage to conductivity and structure, and high cost of synthesis methods , to achieve the effect of simple equipment, low cost, good dispersibility and oxidation resistance
CN103658675AActive Publication Date: 2014-03-26GUANGDONG TONESET SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG TONESET SCI & TECH
Publication Date
2014-03-26

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Abstract

The invention discloses a copper nanowire and a preparation method of the copper nanowire. The method comprises the steps that (1) a copper salt solution is added into an alkali solution, the two solutions are mixed, and the concentration of copper ions in the mixed solution ranges from 1*10<-7>mol / L to 1*10<-5>mol / L; (2) a mixed solution of a reducing agent and a dispersing agent is prepared and added into the mixed solution obtained in the step (1); (3) the copper salt solution is dropwise added into the solution obtained in the step (2) under the conditions of magnetic stirring or ultrasonic dispersing, and reaction is conducted for 0.5-6 hours at the temperature of 40-90 DEG C; (4) products obtained in the step (3) are centrifugally separated and washed, and then the copper nanowire is obtained. The copper nanowire obtained based on the preparation method has the good dispersity and inoxidizability, the particle sizes of the obtained products are uniform, the length of the prepared copper nanowire ranges from 3 micrometers to 15 micrometers, the diameter of the prepared copper nanowire ranges from 20nm to 100nm, and the maximum square resistance value can reach 10.1 ohm per square.
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Description

technical field

[0001] The invention relates to the technical field of nanometer materials, in particular to a nanocopper wire and a preparation method thereof. Background technique

[0002] At present, the film of the electronic product screen is made of indium tin oxide (ITO), which has a high degree of transparency and has good conductivity for information. But the ITO film must be deposited by vapor, which is a very slow process, and devices containing ITO are easy to crack. In addition, indium is also an expensive rare earth element, and the price per kilogram is as high as about 800 US dollars. These problems have prompted scientists around the world to try their best to find more economical materials, and to find low-cost transparent conductive films that can be plated or printed on the surface of the required materials more quickly. One of the alternatives to ITO films is to use cheap metal conductive nanowire inks, especially transparent conductive films prepared f...

Claims

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