Advanced Materials, Vol.16, No.6, 537-537, 2004
High-efficiency, saturated red-phosphorescent polymer light-emitting diodes based on conjugated and non-conjugated polymers doped with an Ir complex
High-efficiency red-emitting polymer light-emitting diodes utilizing [PhqIr]-doped non-conjugated and conjugated polymers (see Figure) in the presence of electron transport molecules are reported. An external quantum efficiency of 12% photon/electron and a luminous efficiency of 5.2 cd/A with saturated red emission at 624 nm are demonstrated.