Tungsten and carbon have many similar physical properties, such as high melting point, high hardness, and better conductivity and thermal conductivity.
So foreign scientists first took aim at tungsten. In recent years, foreign scholars through the study found that single layer tungsten disulfide also has excellent semiconductor performance, it not only has excellent characteristics of graphene, there are more excellent than the characteristics of the semiconductor, two tungsten sulfide has a considerable band gap, and it also shows new properties: As the number of atoms increases, the bandgap becomes tunable, and its electron migration rate is better than that of graphene, which is the ideal choice for transistor materials.
There is no doubt that the emergence of graphene and other two-dimensional materials to the world's material industry brought about tremendous changes, as China attaches great importance to the material industry, graphene manufacturing technology has achieved many achievements, the cost of graphene has greatly declined, making the use of two-dimensional materials rapidly spread. In many areas, graphene has the advantage of excellent compatibility and cost control, and is "the king of new materials". But in the field of semiconductor such as transistors, high-performance single layer two tungsten sulfide has the absolute strength beyond the performance of graphene.
China is not only a big producer of graphene, but also a major producer of tungsten. Tungsten is an important strategic resource of non renewable. The price of monolayer tungsten disulfide is one to two times higher than that of graphene, which is probably the main reason why monolayer tungsten disulfide is difficult to produce as much as graphene. However, if a single layer of tungsten disulfide and graphene made of composite material? This may be feasible. Looking forward to the future, we can exploit the advantages of raw materials to develop a microprocessor with Chinese proprietary rights. In the future of the intelligent world, we use those than the performance speed is almost a few times or even hundreds of times the computer, mobile phone, or VR equipment, and even intelligent robots, they can be a real Chinese core.
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