Method for connecting carbon nanometer tube macroscopic material with metal

Abstract

The invention provides relates to connection technologies for carbon nanometer tube macroscopic films or fibers and metal in the technical field of nanometer materials, in particular to a method for connecting a carbon nanometer tube macroscopic material with metal. The method sequentially comprises the following steps that the portion, needing to be connected, of line-shaped or band-shaped metallic copper or metallic aluminum or metallic tin is ground, polished, washed with ethyl alcohol and dried; carbon nanometer tube macroscopic films or fibers are well prepared, 0.01 mL to 10 mL of elargol is cured at a room temperature, after it is guaranteed that the condition that the curing electric resistivity is kept between 0.002 Ohm / cm to 0.01 Ohm / cm is met, the portion, needing to be connected, of the carbon nanometer tube macroscopic material is coated with the elargol through a needle point of an injector, the metallic portion needing to be connected with the carbon nanometer tube macroscopic material is placed on the surface coated with the elargol, the metal is tightly pressed through a steel ruler, and then the metal can be completely connected with the carbon nanometer tube macroscopic films or fibers. By the adoption of the method for connecting the carbon nanometer tube macroscopic material with the metal, the obtained contact resistance between carbon nanometer tube macroscopic material and the metal is reduced to within 10 Ohms, the technology is simple, and 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.