Super yellow blends for light efficiency

A blend of two polymers can be used to boost the efficiency of LEDs (light-emitting diodes), according to a research study published in the journal Applied Materials Today. Richard Friend of the Cavendish Laboratory, at the University of Cambridge and colleagues, have blended poly(9,9-dioctylfluorene) (F8) and a poly(para-phenylenevinylene) (PPV) copolymer known as Super Yellow (SY) and used cesium carbonate in their LED's negative electrode to minimize quenching and give them ultrahigh efficien