新型可聚合双发色团电致发光材料的合成

SYNTHESIS OF NOVEL COPOLYMERIC DYAD ELECTROLUMINESCENT MATERIALS

自１９８７年Ｔａｎｇ［１］报道了高效、高亮度的双层有机薄膜电致发光器件以来，电致发光材料的研究受到了广泛的关注．接着在１９９０年，英国剑桥大学Ｂｕｒｏｕｇｈｅｓ等［２］首次利用聚亚苯基乙烯（Ｐｏｌｙ（ｐｐｈｅｎｙｌｅｎｅｖｉｎｙｌｅｎｅ），ＰＰＶ）...

Two novel electroluminescent copolymers have been synthesized,in which there are three functions:1,8 naphthalimide as emitting moiety,oxadiazole as electron transporting moiety and PVK as hole transporting moiety.The dyad monomers were characterized by 1H NMR and MS spectra.Their UV Vis spectra indicate that there is little or no interaction between the two chromophores in their ground state.However,the fluorescence emission of oxadiazole and vinylcarbazole were quenched in these copolymers,which shows in the excited state there exists very effective intramolecular singlet singlet energy transfer (Intra SSET) from oxadiazole and vinylcarbazole to 1,8 naphthalimide.