A method for connecting carbon nanotube macroscopic material to metal

Abstract

The invention discloses a method for connecting a carbon nanotube macroscopic material with a metal, and relates to a connection process between a carbon nanotube macroscopic film or a fiber and a metal in the technical field of nanomaterials. The steps include the following steps in turn: polishing the wire-like or strip-shaped metal copper, aluminum or tin to be connected, cleaning with ethanol and drying; preparing a carbon nanotube macroscopic film or carbon nanotube macroscopic fiber, curing silver glue at room temperature 0.01 ‑10 mL, after ensuring that the solid resistivity remains at 0.002‑0.01 Ω / cm, apply it to the carbon nanotube macroscopic material part to be connected through the needle tip of the syringe, and place the metal part to be connected on the coated silver glue The metal can be completely connected with the carbon nanotube macroscopic film or fiber by pressing the metal tightly on the surface with a steel ruler. According to the invention, the contact resistance between the carbon nanotube macro material and the metal is reduced to less than 10 ohms, and the process is simple and the cost is low.

Description

technical field [0001] The invention relates to a connection technology of carbon nanotube macroscopic film or fiber and metal in the technical field of nanometer materials, which can reduce the contact resistance between the two. Background technique [0002] As a new type of nanomaterial, carbon nanotubes have great potential application advantages due to their excellent electrical properties, thermal properties, and electromagnetic properties since they were discovered. Especially for those applications in the research fields of nanoelectronics, nanochemistry, and nanomaterials, it has broad application prospects. When carbon nanotubes are used as conductive or thermally conductive materials, it is inevitable to contact with other materials to form a loop. Therefore, the contact between carbon nanotubes and other materials plays a very important role. However, due to the small diameter of carbon nanotubes, the macroscopic carbon nanotube fibers or films are also composed...

AI Technical Summary

Problems solved by technology

These two methods will cause excessive contact resistance, and some even reach the gigaohm level. Even if the second method is followed up, such as electron beam bombardment, high temperature annealing, etc., there will still be too large contact resistance, reaching Dozens or even hundreds of ohms

Moreover, the above work is limited to the contact between microscopic carbon nanotubes and metal electrodes, and there is little research on the contact between macroscopic carbon nanotubes and macroscopic metals.