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Single-layer graphene the material with the smallest resistivity in the world

Introduction of Graphene
There is nothing particularly about the appearance of graphene. Its micro-sheets look like black cotton just like flocs, but why is it so popular? The answer is actually very simple, because it is too thin, only one atom thick. But the graphene is very hard. While light and strong, it is almost completely transparent.
What is Graphene?
It is a two-dimensional material with a hexagonal honeycomb lattice composed of carbon atoms and sp2 hybrid orbitals. It is a two-dimensional material with the thickness of only one carbon atom. Graphene has always been considered as a hypothetical structure and cannot exist independently and stably. Until 2004, physicists Andre Heim and Konstantin Novoselov of the University of Manchester in the United Kingdom succeeded in experimenting with graphite. The graphene was separated from graphite, and it was confirmed that it can exist alone. The two also won the 2010 Nobel Prize in Physics for their "groundbreaking experiments in two-dimensional graphene materials."
Characteristics of Graphene
In the visible light region, the light reflected by graphene with a thickness of a single atomic layer is less than 0.1% of the incident light, and when it reaches dozens of layers, it will rise to about 2%. The resonance coefficient of single-layer graphene is as high as 5300 W/m•K, which is higher than that of carbon nanotubes and diamonds. At room temperature, its electron mobility exceeds 15000 cm2/V•s, which is higher than that of carbon nanotubes or silicon crystals, while the resistivity is only About 10-6cm. Compared to copper or silver oxide, it is the material with the smallest resistivity in the world.
Because of its extremely low resistivity and extremely fast electron migration, graphene is expected to be able to develop a new generation of electronic components or transistors that are thinner and change in conduction speed. It is suitable for manufacturing transparent touch screens, light panels, and even solar cells.
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