Audio and Video

Graphene-based Transparent Electrodes for OLED Panels

13 April 2017

ETRI researchers work on graphene-based transparent electronics for OLED panels. Source: ETRIETRI researchers work on graphene-based transparent electronics for OLED panels. Source: ETRIGraphene is thought to be one of the new super materials in electronics. Taking the shape of a hexagonal lattice made of carbon atoms, it is an extremely thin and flexible material, while at the same time being incredibly strong, nearly transparent, and highly conductive in heat and electricity.

Therefore, it is not a surprise that virtually every electronics company, research center and university is toying with the material to create the next big thing.

Graphene is being researched to be used to cool electronic chips, and to develop extremely sensitive sensors, foldable pressure sensors, flexible antennas and even the basis of the next-generation of transistors.

Now, a team of researchers from South Korea’s Electronics and telecommunications Research Institute (ETRI) are using graphene to enable the next-generation of organic light emitting diode (OLED) panels.

The ETRI team has successfully developed a method to replace indium tin oxide (ITO) with graphene, which will be used to make transparent electrodes in OLED panels. Because graphene is flexible and highly resistant to chipping, something ITO is not, this is an important aspect in future OLED panels, especially since they are used in everything from smartphones and tablets to monitors and televisions.

The development could have far-reaching impacts on the display market and the creation of next-generation smart devices, if moved toward commercialization, which ETRI is doing. Graphene-based OLEDs could result in completely foldable display panels–panels that are not only thinner, but stronger than what is currently used.

To contact the author of this article, email

Powered by CR4, the Engineering Community

Discussion – 0 comments

By posting a comment you confirm that you have read and accept our Posting Rules and Terms of Use.
Engineering Newsletter Signup
Get the Engineering360
Stay up to date on:
Features the top stories, latest news, charts, insights and more on the end-to-end electronics value chain.
Weekly Newsletter
Get news, research, and analysis
on the Electronics industry in your
inbox every week - for FREE
Sign up for our FREE eNewsletter
Find Free Electronics Datasheets