Silicone material made a breakthrough

Pemano wrote "People's interest in two-dimensional materials, I am afraid that no one can be compared with the two-dimensional version of silicon - "silicon". Silicon is attractive for 50 years, the silicon material carrying the flourishing development of computer technology The performance of graphene, which is a two-dimensional version of carbon with similar properties on the periodic table of the elements, is so magical that it is enough for scientists to hurry and try. Silyene is different from graphene in that The band characteristics make it more suitable for use in digital circuits that require current switching.

In addition, the characteristics of silicon as a semiconductor material such as superconductivity make the siliconene more noticeable - of course, depending on whether people can solve the manufacturing problem - siliconene is notoriously difficult to manufacture.

Researchers at the University of Wollongong in Australia recently wrote an article in the journal Science Advances that successfully solved one of the difficulties: how to quickly peel off the silicon from the substrate. Siliconene is firmly grown on the metal substrate and is very thin, and it is difficult to peel using mechanical methods. The key to the new technology is the doping of oxygen molecules into the lower layer of siliconene, effectively separating the upper layer of siliconene from the metal matrix.

The researchers used the ultra-vacuum environment provided by the scanning tunneling microscope, where the molecular flow of oxygen was not obstructed and the precise position of injection was controlled.

The researchers believe that this technology will help design and fabricate silicon-based nanoelectronic devices and spintronic devices in the future.

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