Today, semiconductor ring toughest thing in the Moore’s Law is about to end, the researchers had to find a replacement for silicon semiconductor material to improve performance, and the carbon nanotubes are considered to be the most likely one to replace silicon material.

Recently, the University of Wisconsin-Madison has been made in the development of this material by leaps and bounds breakthrough, school materials scientists successfully developed 1-inch carbon nanotube transistors, and for the first time while in the performance of silicon transistors and beyond gallium arsenide transistors.

As the name suggests, carbon nano-channel transistor is composed of carbon nanotubes as a conductive material made of transistors, which wall only one atom thick, this material is not only conductive properties, and the volume can do than it is now 100 times less silicon transistors . In addition, the carbon nanotube transistors ultra-small space makes it possible to quickly change the direction of current flowing through it, so they can reach 5 1/5 times the speed or power consumption of only silicon transistors silicon transistors.

However, because of technical bottlenecks in the past for a long time researchers have not been able to develop a better performance than silicon transistors and gallium arsenide transistors of carbon nanotube transistors, not to expect their applications in various types of electronic equipment.mds690

It is understood that, in accordance with traditional practice, usually carbon nanotube hybrid metallic nanotubes, but these metallic nanotubes can cause a short circuit the electronic device, thereby undermining the conductive properties of carbon nanotubes. University of Wisconsin-Madison researchers this another way, they use a polymer replace almost all of the metallic nanotubes, the content of metallic nanotubes down to 0.01% or less, this approach greatly enhance the conductivity.

In addition, the team also made to improve the process, they developed a successful method to remove the residue dissolved carbon nanotube production process produces.

Materials engineering professor at the University of Wisconsin-Madison Mike Arnold, said: “Our research while overcoming multiple barriers faced by carbon nanotubes, eventually won the first super-performance silicon transistor 1-inch carbon nanotube transistors many ideas Carbon. still to be achieved, but we finally realized after two decades to catch up. “adsp-21020kg-100

So the question is, graphene and carbon nanotubes who will become the next generation of semiconductor materials?