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二维多环全苯芳香烃(PBAH)具有类似于石墨的结构形态和良好的稳定性,是一种理想的导电材料,自问世以来受到了广泛关注。本文详细总结了由树枝形聚苯前驱体平面化而制得PBAH的合成方法,指出了PBAH的表征难点,阐述了PBAH的多功能性如热致液晶性、导电性以及光学性能,展示了PBAH在电子传输材料、场效应晶体管、光伏电池、发光二极管、二次电池等方面的应用前景。特别指出了带有柔性侧链的PBAH分子可以形成碟状的液晶态,从而呈现有序的超分子结构,在各种PBAH光电材料的应用中具有良好的前景。
Two-dimensional polycyclic aromatic hydrocarbons (PBAH) has a similar structure and good stability of graphite, is an ideal conductive material, since its inception has been widely concerned. In this paper, the synthesis method of PBAH obtained from the planarization of dendritic polyphenylene precursor is summarized in detail. The difficulties in the characterization of PBAH are pointed out. The multifunctional properties of PBAH, such as thermotropic liquid crystal, electrical conductivity and optical properties, In the electronic transmission materials, field-effect transistors, photovoltaic cells, light-emitting diodes, secondary batteries and other aspects of the application prospects. It is pointed out that PBAH molecules with flexible side chains can form a discotic liquid crystal state and thus exhibit an ordered supramolecular structure with good prospects for the application of various PBAH photovoltaic materials.