Recently, the lack of core chip technology in the domestic technology industry has drawn attention. According to media reports in 2017, Peking University professor Peng Lianmao led the team to successfully use carbon nanotubes to manufacture chip transistors, which work 5-10 times faster than silicon-based transistors of the same size, and consume only one-tenth of the energy. The results were published in the journal Science in early 2017. However, Peng Lianmao said that it is necessary to break through many difficulties in changing technology from experimental products to products.
As a one-dimensional nanomaterial, carbon nanotubes are light in weight, hexagonal structure is perfectly connected, and have many abnormal mechanical, electrical and chemical properties. In recent years, with the deepening of research on carbon nanotubes and nanomaterials, its broad application prospects are constantly being revealed. Carbon nanotubes, also known as bucky tubes, are one-dimensional quantum materials with a special structure (radial size in the order of nanometers, axial dimension in the order of microns, and substantially sealed at both ends of the tube). The carbon nanotubes are mainly composed of a plurality of coaxial tubes of several to ten layers of carbon atoms arranged in a hexagonal shape. The layer maintains a fixed distance between the layers, about 0.34 nm, and the diameter is generally 2-20 nm. And according to the different orientation of the carbon hexagon in the axial direction, it can be divided into three types: zigzag, armchair and spiral. Among them, spiral carbon nanotubes have chirality, while zigzag and armchair carbon nanotubes have no chirality.
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