Scientists first developed two-dimensional graphene electronic motion imaging technology

Recently, researchers at the University of Melbourne have developed a new technology for electron motion imaging in two-dimensional graphene. It is the world's first new graphene current imaging technology to help promote the development of next-generation electronic products.

The new technology can image the behavior of electrons in ultra-thin structures (only one atom thickness), overcoming the significant limitations of current methods for understanding current in ultra-thin materials.

Professor Lauren Hollenberg, deputy director of the Center for Quantum Computing and Communication Technology at the University of Melbourne, said: "In the future, next-generation electronic devices based on ultra-thin materials are particularly prone to micro-cracks and defects, thus damaging currents."

A research team led by Professor Holenberger uses quantum probes to image currents in graphene. The probe is based on a "color center" of one atom size and is only found in diamonds.

“If researchers understand how defects affect current, they will improve the reliability and performance of existing and emerging technologies. We are very excited about this result, which allows us to reveal quantum computing devices, graphene and other 2D. The microscopic behavior of the current in the material."

"Researchers have made great strides in the field of silicon-based nanoelectronics atomic size preparation. Silicon-based nanoelectronics can be used in quantum computers. Like graphene sheets, these nanoelectronic structures are basically only one atom thick. New sensing technology Success means that we have the hope to observe the movement of electrons in the nanoelectronic structure, which will help us understand how quantum computers work in the future."

In addition, new technologies and 2D materials can be used to develop next-generation electronic devices, energy storage (batteries), flexible displays, and biochemical sensors.

Dr. Jean-Philippe Tetienne, Ph.D., Center for Quantum Computing and Communication Technology, University of Melbourne, said: "Our technology is very powerful and simple to implement, so researchers and engineers in many disciplines can use it."

"In physics, the use of moving electrons in magnetic fields is a traditional idea, but it is a novel implementation on the microcomputers used in the 21st century."

Diamond-based quantum sensing researchers and graphene researchers have collaborated to develop new technologies that are critical to overcoming the technical issues of diamond and graphene.

Nikolai Dontschuk, a graphene researcher at the University of Melbourne's Department of Physics, said: "Before, no one could see the current in graphene."

“Making a device that combines graphene with a diamond nitrogen-vacancy color center is very challenging. However, our method is non-invasive and powerful, and we don't induct current in this way, destroying it.”

Tetienne explains how the research team used diamonds to successfully image current.

“Our approach is to illuminate the green laser on the diamond and observe the red light produced by the color center's response to the electronic magnetic field.”

“By analyzing the intensity of red light, we determined the magnetic field generated by the current and were able to image it and see the effects of material defects.”

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