High quality graphene circuit folding computer

Researchers at Northwestern University have recently invented a new method to produce large quantities of high-quality graphene that can be electrically conductive, powerful, and easy to fold. Compared to previous mechanical stripping methods, the new method invented by Northwestern University uses ethanol and B. The base cellulose is separated and the flakes are printed out with the ink. This excellent conductive material is especially suitable for high-frequency circuits, and its conductivity is increased by a factor of 250.

Graphene is the best known material for electrical conductivity. This excellent electrical conductivity is particularly suitable for high frequency circuits. High-frequency circuits are the leader in the modern electronics industry. Some electronic devices, such as mobile phones, are required to use increasingly higher frequencies because engineers are trying to fill more and more information in the signals.

When it comes to electronics and computing technology, graphene has a unique combination of properties, is a very desirable material, not only conductive, powerful performance, but also stable chemical properties, high flexibility.

However, it was very difficult to produce a large amount of pure graphene and to use graphene as a conductor. Today, Northwest University solves the first problem.

In the past, graphene production was produced by mechanical stripping. Tapes were generally used to strip the graphite layer. This produced graphene with high quality but was not suitable for commercial use. Another way of mass-producing graphene is through liquid solvents, but the finished graphene product is only a very low-quality piece of debris, and the new method invented by Northwestern University is to use ethanol and ethyl cellulose to produce large-scale production. Graphene, and the quality is very high.

The produced sheet is mixed with ink and then printed using a conventional ink jet printer. The resulting circuit has a high degree of flexibility as shown in the figure below. The technology has no loss in high rotation and deformation. However, the conductivity remained 250 times that of previous graphene circuits.

In theory, these graphene-equipped computers can be applied to flexible, foldable basic equipment. It is conceivable that a display is composed of a single small panel, spread out to be a huge display, like a folded tourist map. Another area is wearable computing. Many components are currently stored in static locations. With this technology, the connections between components can be completed with flexible graphene, not just hard glass Google Glass or vests. .