Abstract The homopolymer of 2,8-bis(octyloxy)-dibenzothiophene-S,S-dioxide (HPSO) was synthesized by Suzuki polycondensation reaction and utilized as the light-emitting material in fluorescence-based PLED and the host material in phosphorescence-based PLED, respectively. The homopolymer HPSO possesses the LUMO/HOMO levels at −3.10 eV/−6.20 eV and the triplet energy level at 3.02 eV. Utilizing the homopolymer HPSO as the light-emitting material, the fluorescence-based device with the configuration of ITO/PEDOT:PSS/HPSO/CsF/Al displayed maximal luminous efficiency of 1.3 cd/A. Utilizing the homopolymer HPSO as the host material, the phosphorescence-based device with the configuration of ITO/PEDOT:PSS/PVK/HPSO:FIrpic/Ba/Al displayed maximal luminous efficiency of 6.6 cd/A. The results indicate that the homopolymer HPSO is a promising candidate as a new type of blue-light-emitting material for fluorescence-based PLED and a new type of host material for phosphorescence-based PLED.

中文翻译：

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2,8-双(辛氧基)-二苯并噻吩-S,S-二氧化物均聚物的合成及光电性能研究

摘要 通过 Suzuki 缩聚反应合成了 2,8-双(辛氧基)-二苯并噻吩-S,S-二氧化物 (HPSO) 均聚物，用作荧光基 PLED 的发光材料和磷光基 PLED 的主体材料。 PLED，分别。均聚物 HPSO 具有 -3.10 eV/-6.20 eV 的 LUMO/HOMO 能级和 3.02 eV 的三重态能级。利用均聚物HPSO作为发光材料，具有ITO/PEDOT:PSS/HPSO/CsF/Al配置的荧光器件显示出1.3 cd/A的最大发光效率。利用均聚物HPSO作为主体材料，具有ITO/PEDOT:PSS/PVK/HPSO:FIrpic/Ba/Al配置的磷光器件显示出6.6 cd/A的最大发光效率。