The energy levels (HOMO, LUMO) of the conjugated polymer are tuned independently, so that an energy match on both sides of the device can be accomplished while keeping the emission color in the blue region. Such polymers can be formed by polymerization of a mixture of monomers. The mixture of the monomers contains at least one monomer having an electron-deficient group sandwiched by two aromatic hydrocarbon groups (“Monomer (I)”) and at least one hole transporting (“HT”) monomer. The mixture of monomers may also contain a solubility enhancement (“SE”) monomer and/or a Branching Monomer. Such polymers can be used in fabricating light emitting diodes to achieve some of the best device performance to date including high efficiency and blue color purity.
共轭聚合物的能级(HOMO,LUMO)可以独立调节,从而在保持发射颜色为蓝色的同时,在器件的两侧实现能量匹配。这样的聚合物可以通过混合单体进行聚合形成。单体混合物至少包含一个电子亏损基团夹在两个
芳香烃基团之间的单体(“单体(I)”)和至少一个传输空穴(“HT”)单体。单体混合物还可以包含增溶单体和/或分支单体。这样的聚合物可用于制造发光二极管,以实现迄今为止的一些最佳器件性能,包括高效率和蓝色纯度。