There are many promise around graphene in processors; Without further ado, in 2018 the Catalan Institute of Nanoscience and Nanotechnology (ICN2) discovered how they were able to make graphene transistors – which will later be used in processors -, increasing their power. However, time goes on and there is no more news about it. What happened?
Graphene processors, why not?
Graphene is nothing more than a thin layer of carbon (atom-thick), which was long found to be carbon to catch on footIn other words, it is able to let the electricity pass without putting any resistance, so the speed and efficiency are almost perfect.
The problem is that with current technology it is not possible to build semiconductor transistors, and this is so because, as graphene has taken it hard, there would be no "fall" condition. The transistor is nothing more than a switch that allows or does not allow electricity to pass through, represents those and locations of the binary system, and at this time graphene cannot produce zeros, which are represented when not allowing the past to pass
This is known as "Band Gap" (something like a band gap), and we'll explain it in more detail below.
Band Gap, graphene problem
The band Gap is a small gap between the conduction band and the valence band that tells us what current rate will flow between the two. It's like a little doorman who keeps the electric charge in space until it is "turned off." Virtually all operating companies are made of lightweight materials, which means they have limited band space which enables them not to run on electricity easily or to refuse all electrical costs. This has to do with the formation of basic cells, so there are plenty of chemicals involved in chip formation.
There are very large Band gaps in materials such as rubber that can withstand electrical currents, which before allowing them to pass through the flames (which is why the rubber is used for wiring). Items with a very low Band line are known as conductors, while those that are not at all called superconductors, such as graphene
Today most of the processors are made of silicon, which acts as a very reliable and efficient conductor. Keep in mind that we need semi-conductors that can be turned on and off so that they can act as "switches" and represent those and zeros of the binary system, and in this case the superconductor doesn't work. This is why there are still processes that are made of graphene.
One of the problems that silicon has is its lack of functionality when operating in optimal environments. The silicon piece must contain no large size to make it work, which is why it is possible to use graphene instead (because its size is atomic, but as we have explained in this case, having superconducting is unpleasant). As graphene, while promising, requires investment in time and money is so great to generate future profits, scientists begin to try other things.
This is where the TiS3 (Titanium Trisulfide), a substance that not only works even in the size of a single molecule, but also has a Band Gap that is exactly like silicon.
The effects of this can reach far beyond the technological products, which are often small and small with the aim of placing multiple transistors in the same position, doubling the power and efficiency. This has another added benefit: the smaller material has the time to eliminate heat more easily, making it more promising for use on testers.