Provided are a polymer containing S,S-dioxide-dibenzothiophene in backbone chain with content-adjustable triarylamine end groups, and a preparation method and an application thereof. Triarylamines hole-transport small molecules are introduced into the polymer end group, and a content of the triarylamine end groups can be adjusted by controlling a polymer molecular weight, so that the polymer has better electron-transport and hole-transport capabilities, and charge carrier transport can be balanced, so that more exciton recombination takes place effectively, thus improving the luminous efficiency and stability of the polymer. The polymer is prepared by a Suzuki polymerization reaction and does not require synthesis of new monomers. The polymer material is used for preparing highly effective and stable monolayer devices, and is dissolved directly in an organic solvent, then spin-coated, ink-jet printed, or printed to form a film.
本发明提供了一种在骨架链中含有S,S-二氧代
二苯并噻吩、具有可调节含量的三芳基胺端基的聚合物及其制备方法和应用。在聚合物端基中引入三芳基胺空穴传输小分子,通过控制聚合物分子量来调节三芳基胺端基的含量,使聚合物具有更好的电子传输和空穴传输能力,平衡电荷载流子传输,有效地进行更多的激子
重组,从而提高聚合物的发光效率和稳定性。该聚合物通过铃木聚合反应制备,无需合成新的单体。这种聚合物材料可用于制备高效稳定的单层器件,可直接溶解在有机溶剂中,然后旋涂、喷墨打印或印刷成膜。