Created the first transparent OLED display on graphene electrodes

"A real breakthrough in the integration of complex materials into familiar products" - this is how, without false modesty, Dr. Beatrice Beyer of the Fraunhofer Society described her work. This is not the first case of the applied use of graphene, but in this case the experiment has already gone beyond the laboratory. The first OLED screens with graphene will go on sale, probably in 2-3 years.

Graphene has no worthy competitors - it is an extremely efficient conductor of heat and electric current, which, in addition, is extremely durable. And it is almost transparent as well as flexible, which is the key to its use in the next generation of compact displays. Not only them - Beyer's team is exploring the possibility of a radical redesign of solar panels and touchscreens using graphene electrodes.

To create graphene wiring for an OLED display, scientists heated a 2 × 1 cm copper plate to 800 ºC and placed it in a chamber filled with methane and hydrogen. As a result of a chemical reaction between gases and copper, graphene atoms are formed on its surface. All that remains is to cool the structure, etch out the copper and put on the electrodes in a protective polymer shell - you get a monoatomic graphene "wire".

Such a miniature conductive element will become the basis for the interfaces of future electronic devices. From supercapacitors for the space industry to clothing-integrated and invisible wearables for young people. Scientists believe that in the near future a series of revolutionary developments and discoveries awaits us - a new, truly "graphene era" is coming.