Conjugated polymers containing arylamine pendants for light-emitting diodes

New conjugated light-emitting polymers containing arylamine pendants have b een designed, synthesized, and characterized. The resulting polymers are th ermally stable, have rigid backbones, show high T-g and T-d values, and are readily soluble in organic solvents. The single-layer LED devices fabricat ed from these polymers emit light ranging from bright yellow to bright red. The color of the emitting light can be tuned by incorporating various arom atic units. The devices show very low turn-on voltages.