As silicon materials are approaching their physical limits, graphene is logically accepted as the successor to silicon materials. If you want Moore's Law to continue on graphene materials, then there is a problem that must be clarified - how can we effectively use graphene transistors? The graphene transistor has an incredible speed compared to the materials currently used; but there is also a terrible problem because - it cannot be "shut off". This is the problem if you try to switch the graphene material.
Fortunately, a research team led by Liu Guanxiong at the University of California, Riverside, claimed that they had come up with a practical high-tech solution.
In short, we should not treat graphene as a silicon material. Instead, Liu and his team used a different phenomenon called "negative resistance" to imitate the behavior of a collective tube.
They plan to create a standard graphene field effect transistor and determine the situation in which negative resistance needs to be induced. This creates a "dip in voltage", much like a transistor's switching behavior, which can be used to perform logical operations.
Of course, it takes a long time to develop in the real world, but this is at least a good start. In particular, 100GHz graphene transistors that IBM demonstrated in just a few years ago. Experts believe that silicon material still has at least nine years before the Moore's Law peaks.
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