Korean researchers have developed high-quality graphene quantum dots that are equal in size and highly efficient in emitting light, paving the way for the devlopment of paper-thin displays. The Korea Advanced Institute of Science and Technology (KAIST) announced late August 28 that a research team led by professor Jun Suk-woo has succeeded in making graphene quantum dots by mixing water and salt into graphite and then synthesizing a chemical compound between layers of graphite.

Quantum dots are nanometer-sized round semiconductor nanoparticles that are very efficient at emitting photons very quickly.

The diameter of the equally-sized graphene quantum dots was 5 nanometers. The eco-friendly dots can be to massively proiced at little cost.

The team developed and confirmed the possibility of the commercialization of graphene quantum dot LEDs with more than 1000cd/m2 brightness using graphene quantum dots, which are brighter than displays for cell phones.

Although they are not as efficient as existing LEDs in emitting lights, the characteristics of emitting lights can be improved further, according to the Korean researchers.