Paul Leu, associate professor of industrial engineering at the University of Pittsburgh’s Swanson School of Engineering, will lead a collaborative study that aims to replace indium tin oxide with metal “microgrid” conductors to improve performance of organic light-emitting diodes, or OLEDs.
Leu will work with Electroninks, a technology company in Austin, Texas, thanks to a $1 million award from the Department of Energy’s Small Business Innovation Research program.
OLEDs are present in smartwatches and 4K television screens. Indium tin oxide is expensive, doesn’t perform well enough for larger areas and can crack with repeated touching or swiping. By using a new metal patterning technique that prints the metal grid directly on glass or plastic, the team aims to create “microgrid” conductors that can outperform indium tin oxide at a lower manufacturing cost.