Condensed ring unit, small molecule containing condensed ring unit, polymer, and preparation methods and applications of condensed ring unit, small molecule containing condensed ring unit, polymer and polymer

The invention discloses a condensed ring unit based on a naphthalene dibenzotriazole derivative, a small molecule containing the unit, a polymer and preparation methods and applications of the condensed ring unit, the small molecule and the polymer. According to the invention, a novel aromatic unit with a large fused ring structure is constructed on the basis of a naphthalene ditriazole derivative; a series of small molecules and copolymers are constructed based on the condensed ring unit of the naphthalene dibenzotriazole derivative, and the prepared small molecules and polymers have absorption in a wide spectral range and high carrier mobility. Small molecules and polymers based on the condensed ring unit based on the naphthalene dibenzotriazole derivative can be used as active layers and applied to organic/polymer electronic devices such as organic/polymer photoelectric detectors and organic/polymer solar cells. 本发明公开了基于萘二并三唑衍生物的稠环单元、含该单元的小分子、聚合物及它们的制备方法与应用。本发明以萘二并三唑衍生物为基础，构建了一类具有大稠环结构的新型芳香单元；并以基于萘二并三唑衍生物的