Carbon nanotubes are a kind of carbon structure found in 199 1. It is a cage-like "fiber" composed of several layers of carbon atoms. This material is light but strong. As one-dimensional nano-materials, carbon nanotubes have light weight, perfect hexagonal structure connection and many abnormal mechanical, electrical and chemical properties. The future will become a new hot spot in the field of new materials in the market, and it is hollow. It can be regarded as being formed by curling graphene sheets, so it can be divided into single-walled carbon nanotubes and multi-walled carbon nanotubes according to the number of graphene sheets. Industry-University-Research Linkage: A New Generation of Carbon Nanotubes Appears.
Carbon nanotubes, one of the ultimate goals in this research field, is to synthesize single-walled carbon nanotubes by mastering their chirality, that is, molecular symmetry.
Scientists from Aalto University in Finland, prokhorov Institute of General Physics and Electron Microscope Center of Data Transmission Unit announced that they have mastered more than 50% chirality in carbon nanotubes.
The breakthrough of this key technology means that the commercial development of carbon nanotubes has officially begun to meet many practical applications.
At the beginning of the discovery of carbon nanotubes, technology and complex processes stopped this technology. One of the limiting factors that it can't play a role in practical production is that people can't master its chirality well, which determines the optical and electrical characteristics of carbon nanotubes.
Just like you pick up a piece of paper, when you roll it up and put it in a test tube, it will show a state; And when you roll it to a certain angle, it will take on a different look. "Yes, this is how we explain the structure of single-walled carbon nanotubes. Just like curling graphene sheets in different ways in various directions and widths. " Esco Kauppinen, a professor of applied physics at the Academy of Sciences of Aalto University, said.