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,从而可以在保持发射颜色在蓝色区域的同时在设备的两侧实现能量匹配。这种聚合物可以通过聚合混合单体形成。单体的混合物至少包含一种具有两个
芳香烃基围绕的电子亏欠基团的单体(“单体(I)”)和至少一种传输孔(“HT”)单体。单体的混合物还可以包含增溶性增强(“
SE”)单体和/或支链单体。这种聚合物可用于制造发光二极管,以实现迄今为止一些最佳的器件性能,包括高效率和蓝色纯度。