Many things are changing…
Graphene is crystalline carbon film with the thickness of one atom. Thanks to its unique characteristics (special electronic properties, high conductivity, transparency for light, an ability for mechanical stretching and others), graphene is a promising material in high demand in nanoelectronics.
https://phys.org/news/2016-10-scientists-graphene-high-resistance-ozonation.html
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The Wonder Material Graphene
https://analyticalscience.wiley.com/do/10.1002/gitlab.15487/full/
Where do the extraordinary properties of graphene come from? Mostly from its unusual band structure. The band structure of a material connects the energy of an electron wave inside the material with its wave number. According to quantum theory, electrons travel through materials as waves. Such an electron wave is characterized by its wave length, and its direction of movement. In the space of one wave length λ the electron wave performs exactly one oscillation. Conversely, the wave number k = 2π/λ is the number of oscillations per unit length. An electron wave may move through a crystal lattice in certain directions only with certain wave numbers, as determined by the crystal structure. This relation, called band structure, tells us a lot about the properties of the material: if, for example, no k-values are allowed in a certain energy window, then no current may flow at that energy, meaning the material is insulating. Graphene has no such band gap. Instead, it features a linear relation between energy and wave number: for increasing energy, the wave number increases and the wave length decreases accordingly