Phones, computers with OLED displays may get cheaper with Graphene use

One essential aspect in the panel's manufacture may be keeping its price up as smartphone companies rush to deploy OLED screens on their phones. According to a new study, the wonder material Graphene can be a suitable replacement for it, thereby lowering the cost of OLEDs.

Researchers from Paragraf and the Queen Mary University of London have published a new paper that shows the development of a Graphene-based OLED. The scientists were able to replace Indium, a rare metal needed in the production of OLED displays, in this way.

The new research, which was published in the journal Advanced Optical Materials, demonstrates the first-ever effective method for replacing Indium in OLEDs. One of the nine rarest elements in the Earth's crust is indium. The element's rarity can also be determined by its status as a critical substance on the EU's list.

The material is used to make OLED touch displays and other types of panels. Indium tin oxide is the most common type of indium tin (ITO). Indium is used in TVs, solar panels, and even LED lights, in addition to touch screens on phones and PCs.

Many attempts have been made in the past to replace Indium with OLEDs due to its restricted availability. However, no other material has ever been able to produce an output similar to that of Indium.

The latest study report, according to Professor Colin Humphreys of Queen Mary and Paragraf, is "the first in the world" to demonstrate Graphene as a feasible substitute for ITO. According to his and his team's research, a graphene-based OLED performs similarly to an ITO-OLED.

Graphene has been heralded as a miracle substance since its discovery. It is made up of only a single layer of carbon atoms but, thanks to its honeycomb structure, it is one of the strongest materials on the planet. It's also totally flexible, allowing it to be molded to fit any application, and it's more conductive than copper.

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