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Researchers Manage to Increase OLED Efficiency

Researchers have successfully created organic light emitting diodes (OLEDs) on a flexible plastic substrates, which could pave the way for flexible displays.

According to RSC, before the advances made by a team of researchers at the University of Toronto, OLEDs were very low on efficiency due to their tendency to trap light in their structure.

Using a 50-100 nm thick layer of Tantalum Pentoxide increased the OLED efficiency for green light to 63 percent. Before this, it was at a measly 20-30 percent.

"For years, the biggest excitement behind OLED technologies has been the potential to effectively produce them on flexible plastic," said Materials Science & Engineering Professor Zheng-Hong Lu.

"This discovery, unlocks the full potential of OLEDs, leading the way to energy-efficient, flexible and impact-resistant displays," says Professor Lu.

Glass was a liable option to increase the efficiency of the organic display but then OLED would not have been able to be used on flexible surfaces. According to the researchers, their next target is to find an alternative to Tantalum Pentoxide as it's very costly to use.