Graphene: The Latest Advances

Both graphene companies, like 2-DTECH, promoting the numerous graphene uses, and researchers, like a Swiss-based EMPA, digging deep to discover new properties of the material, are grinding away to make another industrial revolution happen sooner than expected.

Thus, a group of savvy Australian and Irish scientists led by Gordon Wallace of Wollongong University, located in Australia, have managed to create grahene fibers, boasting record capacity ever achieved with graphene-based fibers.

he materials with similar capacity can be used as a supercapacitors, as their ability to accumulate electrons allows storing substantial amounts of energy which can be quickly applied, if necessary.

To produce graphene fibers a wet spinning method is used, which allows obtaining porous, yet extremely strong fibers of virtually any length. The fiber is made of graphene oxide and reduced graphene oxide, and the capacity of devices created using this fiber type is more than one and a half times higher than the previous record. However, according to calculations provided, the numbers can experience further growth.

The most promising field of application of neoteric graphene fibers is believed to be portable energy storage for wearable electronics and smart clothes, which, apart from the main purpose, will include a variety of electronic devices of minimum thickness. At the same time, these devices will offer unparalleled mechanical stability.

A range of outstanding graphene properties has been utilised in a broad variety of manufacturing industries: the material is used in the production of night vision lenses, accumulators and solar batteries. With dozens of discoveries registered, scientists believe that the potential of the material is too far from being unlocked fully, mainly meaning the electronics production, where graphene could be used for transducers production.

Graphene Breakthrough In PC Components Production

The idea of a 100GHz processor or battery that is charged within seconds has excited the computer industry and research institutes. However, graphene is characterised by superconductivity, so the production of transistors needs to undergo architectural changes before the neoteric material takes an integral part in manufacturing processes. As for the other electronics production branches, for example, displays, batteries, solar panels or headphones, the chances for successful material implanting are even better.

Graphene makes electrons move at high speed, which guarantees unmatched strength, flexibility and transparency. To reveal graphene’s secret one needs to get acquainted with the structure of the material at the atomic level. A hexagonal lattice of carbon atoms arises from the fact that three of the four electrons form a connection with their neighbors, while the fourth orbital remains aside. Bound electrons provide the strength of the lattice, whereas the unbound graphene electron ensures high thermal and electrical conductivity. Due to a thorough carbon connection, graphene is comparable with diamond in terms of strength.

Additionally, the lattice grid structure is up to 20% stretchable. Electronics manufacturing engineers are mostly attracted by an unbound electron, which offers a potentially valuable feature: an extremely small intersection of energy and valence bands of the electrons. Because of this, electrons move through the graphene lattice at high speed and with almost no resistance. Thus, graphene transistors, as the basis of computer processors, can operate at terrific frequencies (with almost no chances for overheating).