Red light set to get the green light for better OLED production
Two europium based compounds developed at the Institute of Physical Chemistry of the Polish Academy of Sciences (IPC) are said to produce red light with high luminescent efficiency and could enable faster, low cost manufacturing of thin OLED films.
A research group from the University of St. Andrews has used the compounds to build prototype OLEDs and say they generate nearly monochromatic red light.
"Both compounds, carefully designed by us, display a record breaking luminescent efficiency," said Professor Marek Pietraszkiewicz from the IPC.
The red light emitted by the europium complexes has a wavelength of about 612nm, with an efficiency of 90%.
The materials are said not to degrade when exposed to oxygen or light and films of them can be produced from solution, unlike other OLED films, which require high vacuum evaporation and deposition.
Potential applications for the materials include OLED displays and lighting components, as well as flexible elastic dermal patches for use in anti cancer therapies.
