China and Denmark Develop a Monolayer Transistor

Scientists from the Chinese Academy of Sciences and the Chemical Nanoscience Center at the University of Copenhagen in Denmark used a single molecular layer to make a transistor. At the same time, they creatively applied the unique properties of graphene to create a graphene computer chip using the molecular transistor. The latest research published in "Advanced Materials" magazine will help scientists design electronic devices that are smaller, faster and more environmentally friendly.

The leader of the study, Professor Caspar Noyad, a professor of chemistry at the University of Copenhagen, said: “Graphene has many unique attributes that make other materials untouchable. This is also the first time that scientists have demonstrated that it is possible to integrate a functional component into a piece of graphite. On the alkene chip, the first benefit of the newly developed graphene chip is to make it easier to test molecular electronic components, which is also the first step toward the manufacture of molecular ICs by scientists."

The graphene chip is a "sandwich" consisting of a layer of gold, a layer of molecular transistors, and a layer of ultra-thin graphene. The molecular transistor is turned on and a light pulse is used at the same time, which exerts the unique property of “complete translucent” graphene.

Scientists have been trying to develop transistors, wires and other electronic components made from single molecules. Unlike traditional components, they are expected to abandon heavy metals and rare earth elements, which will drastically reduce their "worth"; at the same time, they will be more friendly to the environment, water and animals. But so far, scientists have been hard to test the performance of these functional molecular components.

Previously, in order to test the performance of these micro-components, scientists had to continuously dump a beaker of beatings between two live wires, hoping that at least one of the molecules would fall on the wires and disconnect the circuit. Noahd said: "This approach is tantamount to buying lottery tickets, and the success rate is minimal." But now, using new graphene chips, scientists can place molecules very precisely, which makes them faster and easier to test molecules. Wire and diode functions.

Noahd said: "This design idea can target different types of molecular components. This graphene 'scaffold' is very close to a real chip, allowing scientists to more easily test molecular components and use molecular components to produce them. True graphene chip."