In one embodiment of the present invention, a novel fused polycyclic aromatic compound of the present invention is (a) a compound including a benzodichalcogenophenobenzodichalcogenophene (BXBX) skeleton further having an aromatic ring(s) located outside the BXBX skeleton, or (b) a compound including a BXBX skeleton in which a benzene ring is substituted with a heterocyclic ring. The compound can strengthen intermolecular interaction due to greater π electron orbits. This improves an electron field effect mobility of an organic semiconductor device that is manufactured by use of the compound as an organic semiconductor material. Further, since the number of fused rings included in the compound is small, the compound does not cause problems that generally occur in compounds having an extremely large number of fused rings, i.e., poor solubility in solvent and poor atmospheric stability due to high affinity to oxygen. As a result, the fused polycyclic aromatic compound of the present invention can be preferably used as an organic semiconductor material.
在本发明的一种实施例中,本发明的新型融合多环芳香化合物是(a) 包括苯二卤素苯并二卤素苯并二卤素苯(BXBX)骨架,进一步具有位于BXBX骨架外部的芳香环,或者(b) 包括一个BXBX骨架,在其中苯环被杂环环取代的化合物。该化合物可以通过更大的π电子轨道强化分子间相互作用。这提高了由该化合物作为有机半导体材料制造的有机半导体器件的电子场效应迁移率。此外,由于化合物中包含的融合环数较少,因此该化合物不会引起通常出现在具有极大融合环数的化合物中的问题,即对溶剂的溶解度差和对
氧气亲和力高导致的大气稳定性差。因此,本发明的融合多环芳香化合物可作为有机半导体材料优选使用。