Created the first computer of carbon nanotubes




world’s first carbon nanotube computer

Inspired by the idea of ​​a compact, high-performance electronics, researchers at Stanford University have created the world’s first desktop computer, which is composed entirely of carbon nanotubes. The nanotubes used in the development of a new type of transistor that can be replaced in the future silicon chips. Carbon nanotubes may also help in the treatment of cancer .

This is the most sophisticated electronic device ever created using carbon nanotubes. This topic has been widely discussed, but no one believed that you can actually create something similar – says Max Shulaker, co-author of a paper published in the scientific journal Nature.

Carbon nanotubes are cylindrical carbon atoms of the crystals. Transistors from nanotubes are very small, which allows to save space on the chip when compared to silicon transistors. Adding here a high conductivity and response, we will get increased performance and energy efficiency. This is particularly important in view of the inherent limitations of silicon transistors: approximately every two years, engineers have double the number of transistors on a chip. However, scientists have foretold the end of Moore’s Law in a few decades.

Computer built Shulakerom and his colleagues, quite primitive: it uses only 178 transistors and controlled by a simple operating system, which allows for counting and sorting numbers with the ability to switch between two tasks.

However, any group of scientists have not been able to create a computing machine based on carbon nanotubes. On it were the cause. First, the carbon nanotubes are arranged independently as they want. Second, the process of self-organization may acquire the metallic properties that may cause a short circuit.

We’ve done a lot of work to make the nanotubes line up in the required direction. When one chip contains billions of transistors in a 2 percent error can lead to a serious problem – says the researcher.

To overcome these two problems scientist at Stanford University, was possible thanks to technology that prevents the formation of an imperfect structure. It is assumed removal (evaporation) of metallic nanotubes with current. According to the researchers, in the future this method of carbon transistors can be used on an industrial scale, which will compete with silicon analogues.

To create a more sophisticated computers require additional research.

It would be naive to think that all instantly abandon silicon. But perhaps one day be renamed Silicon Valley in Carbon Valley – says Shulaker.

Previously, scientists from the same university have developed a completely carbon solar cells .
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Tags: Moore’s Law , Nanotechnology , Carbon nanotubes .


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