Poles have created the first flexible OLED screen with a graphene electrode

He sees many revolution in displaying the picturewhich is to come with the use of the material of the future as it is count. Thanks to it, new generations of displays will provide us with an image so full of colors and details that we will admire the films as if their scenes were played live.

Scientists from University of Lodz. There is the first laboratory in Poland and one of the few in the world that conducts such experiments. As graphene has an excellent conductivity of heat and electricity, and transmits light rays at the level of 89 percent, it can be used to build OLED diodes for the extremely thin and flexible displays of the future.

For many years, attempts have been made to tame graphene in OLEDs as an anode (electrode), but it was carried out with little success. The breakthrough came with the addition of an additional 3-5 nm rhenium oxide layer. Scientists have finally stabilized the system and can now move on with the building a fully functional prototype.

Dr Kurowski together with dr hab. Paweł Kowalczyk from the University of Lodz explain that indium-tin oxide, which until now served as an electrode in organic light-emitting diodes, is brittle and brittle, therefore not very practical, also due to the high production costs.

This is about to change with graphene as an electrode in OLED screens. Scientists said that the new displays could be folded smartphones in the first place. Meanwhile, those for use in monitors will be powered by a 3-volt system. Currently, 20 volt systems are used. We can talk about a significant energy saving here. Mobile devices equipped with such displays will consume much less energy, so their work on a single charge will be longer.

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