染料分子结构对光伏器件性能的影响

Study on Relationship between Molecular Structures of Dyes and Performance of Organic Photovoltaic Systems

制备了铜酞菁衍生物和二酰亚胺衍生物为工作物质的双染料有机光伏体系,讨论了工作物质分子结构对体系中载流子(电子和空穴)传输过程的影响,认为带有吸电子侧基的给体分子与带有推电子侧基的受体分子组合成的有机光伏体系可能更有利于载流子的转移和传输,从而在一定程度上提高体系的光电转换性能。最后,尝试从量子化学的角度对体系的光电转换性能进行了解释。

Different kinds of di-dye organic photovoltaic systems based on cuprum phthalocyanine derivatives and perylene diimide derivatives as working materials were prepared, and the relationship between the molecular structures of those dyes and process of carriers （electrons and holes） transporting ~was investigated. It was considered that the system, assembled by donor-molecule with electron withdrawing side chains l and acceptor-molecule with electron donating side chains, could favor the process of carrier transporting. Consequently, the SYstem had optimum performances of photoelectric conversion. Finally, the results were discussed by means of quantum chemistry.