聚对苯乙炔-噻吩共轭聚合物电致发光性能的研究

Electruluminescence (EL) in conjugated polymers based on phenyleneethynylene and thiophene (PPE) with C—C triple bonds in their main chains were studied. It was found that the emitting wavelength will red shift by introduction of thiophene which is an electron rich moiety, the results suggest that electron rich moieties should increase effective conjugation length. Our results also show that the incorporation of thiophene units into PPE may significantly reduce the rigid rod conformation and improve the processibility.